Wireless speakers / Compare

Sony ULT FIELD 7 vs Sony ULT TOWER 9

A

Product A: Sony

ULT FIELD 7

49 of 96 known

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B

Product B: Sony

ULT TOWER 9

53 of 96 known

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All 96 fields

Every value links to where we found it.

Only differences

ASony ULT FIELD 7

BSony ULT TOWER 9

General

5 of 8 differ

Series

ULT POWER SOUND2Press releasesony.mediaroom.com/2024-04-11-Sony-Electronics-Introduces-ULT-POWER-SOUND-R-,-A-New-Series-of-Speakers-and-Headphones-to-bring-Massive-Bass-and-the-Ultimate-VibeRead 10 October 2026Press release launches the ULT POWER SOUND series with ULT FIELD 7 in it.

ULT POWER SOUND2Press releasesony.mediaroom.com/2025-04-09-Sony-Electronics-Introduces-Three-New-Speakers-in-the-ULT-POWER-SOUND-Range-Featuring-Global-Superstar-Post-MaloneRead 15 October 2026The release names the ULT POWER SOUND Series.

Model numbersiMaker identifiers for this exact model and its listed variants. Excludes sibling models and other generations.

SRS-ULT70, YY7858E1Owner's manualhelpguide.sony.net/speaker/7858/v1/en/print.pdfRead 10 October 2026Help guide cover states Model YY7858E and the guide lists SRS-ULT70 as the model name. The guide is titled ULT FIELD 7.

SRS-ULT900, YY7864E1Owner's manualhelpguide.sony.net/speaker/7864/v1/en/print.pdfRead 15 October 2026Guide cover states Model YY7864E. The parts section and contents name the speaker SRS-ULT900.

GTIN / EAN

Not available

0272429319233Retailer pageabt.com/Sony-ULT-POWER-SOUND-Series-ULT-TOWER-9-Party-Speaker-Bluetooth-in-Black-SRSULT900/p/221687.htmlRead 15 October 2026US listing for Model SRSULT900 gives UPC 027242931923. The AC-only 9AC has a different UPC and is not this product.

AnnouncediThe maker's first announcement of this model. This is separate from first retail availability.

11 April 20242Press releasesony.mediaroom.com/2024-04-11-Sony-Electronics-Introduces-ULT-POWER-SOUND-R-,-A-New-Series-of-Speakers-and-Headphones-to-bring-Massive-Bass-and-the-Ultimate-VibeRead 10 October 2026Press release dated April 11, 2024.

9 April 20252Press releasesony.mediaroom.com/2025-04-09-Sony-Electronics-Introduces-Three-New-Speakers-in-the-ULT-POWER-SOUND-Range-Featuring-Global-Superstar-Post-MaloneRead 15 October 2026Sony Electronics press release dated 2025-04-09, San Diego.

Status

Not available

Available3Retailer pageabt.com/Sony-ULT-POWER-SOUND-Series-ULT-TOWER-9-Party-Speaker-Bluetooth-in-Black-SRSULT900/p/221687.htmlRead 15 October 2026Listing is live with Add to Cart and a 898 USD price for the rechargeable battery version.

PredecessoriThe model this one directly replaced, in the same line, tier and size, as the maker or a trusted review names it.

Not available

Not available

SuccessoriThe model that directly replaced this one, in the same line, tier and size. A revision such as a Slim or OLED model does not count when a next generation exists.

Not available

Not available

Launch price (US)iThe maker's US launch MSRP for the stated configuration, excluding tax. Current store prices and later discounts do not qualify.

$4992Press releasesony.mediaroom.com/2024-04-11-Sony-Electronics-Introduces-ULT-POWER-SOUND-R-,-A-New-Series-of-Speakers-and-Headphones-to-bring-Massive-Bass-and-the-Ultimate-VibeRead 10 October 2026Suggested retail price $499 USD and $599 CAD at Sony.com, Amazon, Best Buy and other dealers.

$899.992Press releasesony.mediaroom.com/2025-04-09-Sony-Electronics-Introduces-Three-New-Speakers-in-the-ULT-POWER-SOUND-Range-Featuring-Global-Superstar-Post-MaloneRead 15 October 2026US suggested retail price 899.99 USD for the ULT TOWER 9 with battery. The AC-only ULT TOWER 9AC is a separate model at 749.99 USD.

Launch price (EU)iThe maker's euro launch price for the stated configuration, including VAT as published. Current store prices and later discounts do not qualify.

€4497Press articlegiga.de/news/sony-ult-lautsprecher-kopfhoerer-2024-rabattRead 10 October 2026Giga article on the April 2024 ULT launch gives the German list price (UVP) as EUR 449. MediaMarkt Austria shows a UVP of EUR 499.99, which may be a later or regional list price. Sony Europe press release was not readable. Includes VAT.

Not available

MarketsiISO country or region codes where this exact model or variant is sold. A source page's language does not establish availability.

US, CA2Press releasesony.mediaroom.com/2024-04-11-Sony-Electronics-Introduces-ULT-POWER-SOUND-R-,-A-New-Series-of-Speakers-and-Headphones-to-bring-Massive-Bass-and-the-Ultimate-VibeRead 10 October 2026Press release is for the US and Canada.

US, GB, JP4Press articletechradar.com/audio/wireless-bluetooth-speakers/sony-adds-three-bluetooth-speakers-to-its-bass-hungry-ult-range-meet-tower-9-field-5-and-field-3Read 15 October 2026Launch article of 2025-04-09 names the powered Tower 9 at 899.99 USD and 850 GBP. The US market comes from the Sony press release and Japan from the NTT-X listing. No euro price is published for the battery model in the sources read, so launch_price_eur is left out.5Retailer pagenttxstore.jp/_II_SN16806247Read 15 October 2026Japanese listing for SRS-ULT900 gives release date 2025-05-16 and describes a splash-resistant top panel.

ColoursiThe maker's own colour names

Black4Retailer pageamazon.com/dp/B0CXL5P51QRead 10 October 2026Amazon US listing for Sony ULT Field 7 in Black. The listing shows currently unavailable on the accessed date, so status is not stored.

Black3Retailer pageabt.com/Sony-ULT-POWER-SOUND-Series-ULT-TOWER-9-Party-Speaker-Bluetooth-in-Black-SRSULT900/p/221687.htmlRead 15 October 2026Listing and spec table give Black Finish. No other finish is listed.

Speaker typeiHome covers speakers made to stay in one place, including smart speakers. A speaker with Wi-Fi or a voice assistant can be of any type.

Party2Press releasesony.mediaroom.com/2024-04-11-Sony-Electronics-Introduces-ULT-POWER-SOUND-R-,-A-New-Series-of-Speakers-and-Headphones-to-bring-Massive-Bass-and-the-Ultimate-VibeRead 10 October 2026Press release says ULT FIELD 7 lets listeners bring the party anywhere with a mic port for karaoke.

Party3Retailer pageabt.com/Sony-ULT-POWER-SOUND-Series-ULT-TOWER-9-Party-Speaker-Bluetooth-in-Black-SRSULT900/p/221687.htmlRead 15 October 2026Listing and the copied Sony page call it a party speaker with Party Lights, castors and karaoke inputs.

Audio

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Audio channelsiSound channels reproduced by one speaker. Pairing two speakers for stereo is separate.

Not available

Not available

Audio driversiPowered audio transducers in one speaker. Passive radiators are counted separately. Circular diameter and rectangular width and height have separate columns. Per-driver power must state continuous or RMS basis and battery or mains operation in the source note.

ASony ULT FIELD 7

Driver type	Count	Diameter (mm)	Width (mm)	Height (mm)
Woofer	2	Not available	114	114
Tweeter	2	46	Not available	Not available

Source1Owner's manualhelpguide.sony.net/speaker/7858/v1/en/print.pdfRead 10 October 2026Specifications: 2-way with passive radiator. Woofer unit about 114 mm x 114 mm (4.5 in x 4.5 in), 2 units. Tweeter unit about 46 mm diameter, 2 units. The help guide does not give the passive radiator count. Sony Japan lists 2.

BSony ULT TOWER 9

Driver type	Count	Diameter (mm)	Width (mm)	Height (mm)
Woofer	1	Not available	320	320
Midrange	2	120	Not available	Not available
Front tweeter	2	50	Not available	Not available
Rear tweeter	2	40	Not available	Not available

Source1Owner's manualhelpguide.sony.net/speaker/7864/v1/en/print.pdfRead 15 October 2026Specifications: 3-way, bass reflex. Woofer unit about 320 mm x 320 mm (1), midrange unit about 120 mm diameter (2), front tweeter unit about 50 mm diameter (2), rear tweeter unit about 40 mm diameter (2). No per-driver power is published. The guide does not describe a passive radiator, so the passive radiator count is left out. The TV Sound Booster section says the 4 front components (2 tweeters and 2 midrange) are disabled while that function is on.

Passive radiatorsiPassive, unpowered bass radiators. Excludes powered drivers.

25Maker product pagesony.jp/active-speaker/products/ULT_FIELD7/spec.htmlRead 10 October 2026Specification table (Japanese) lists passive radiator units as 2.

Not available

Rated audio poweriMaker-published total rated continuous audio output. Battery power is used for portable speakers when mains and battery ratings differ. Peak marketing power is separate.

Not available

Not available

Rated audio power on mainsiTotal rated continuous audio output with external power. Store a separate battery rating when the maker publishes both.

Not available

Not available

Audio output power (unspecified rating)iMaker- or reviewer-published audio output power whose continuous or peak rating basis is not stated. This is separate from rated continuous output and explicitly published peak output.

Not available

320W7Retailer pageamazon.com/Sony-Bluetooth-Powerful-Convenient-SRSULT900/dp/B0DYB1BFRBRead 15 October 2026US Sony storefront listing, Pattern Battery Powered, gives Speaker Maximum Output Power 320 watts. Sony's help guide, press release and spec tables publish no audio power. The rating basis (continuous, peak or RMS) is not stated, so the value sits in the unspecified-rating field. The 153 W in the guide is power consumption, not audio output. One Indian listing names 520 W for the AC-only ULT TOWER 9AC, and Sony says the AC model gives more powerful sound.

Peak audio poweriExplicitly published peak audio output. Never substitute for rated continuous output.

Not available

Not available

Frequency response lower limit (claimed)iPublished acoustic frequency response limit. Tolerance and operating mode belong in the source note. The Bluetooth transmission range that some spec tables and retailers label Frequency Response, such as A2DP 20 to 20,000 Hz, is not stored.

Not available

Not available

Frequency response upper limit (claimed)iPublished acoustic frequency response limit. Tolerance and operating mode belong in the source note. The Bluetooth transmission range that some spec tables and retailers label Frequency Response, such as A2DP 20 to 20,000 Hz, is not stored.

Not available

Not available

Signal-to-noise ratio (claimed)

Not available

Not available

Adjustable equalizeriUser-adjustable frequency bands. Selecting fixed sound presets alone does not qualify.

Yes1Owner's manualhelpguide.sony.net/speaker/7858/v1/en/print.pdfRead 10 October 2026Help guide states users can adjust an equalizer in Sony | Music Center.

Yes1Owner's manualhelpguide.sony.net/speaker/7864/v1/en/print.pdfRead 15 October 2026Guide: select CUSTOM in Sound Effect in the Sony | Sound Connect app, then adjust CUSTOM EQ. CUSTOM is not available while TV Sound Booster is on.

Equalizer bandsiNumber of user-adjustable frequency bands. Do not count sound presets.

73Reviewsoundguys.com/sony-ult-field-7-review-is-this-the-best-portable-party-speaker-138823Read 10 October 2026Review states the customizable 7-band custom EQ in the Sony Sound Connect app.

103Retailer pageabt.com/Sony-ULT-POWER-SOUND-Series-ULT-TOWER-9-Party-Speaker-Bluetooth-in-Black-SRSULT900/p/221687.htmlRead 15 October 2026Copy of the Sony page says 10-Band Equalizer controllable through the Sony | Sound Connect app. The UK EE spec table lists Custom EQ band: 10. The help guide gives no band count.6Retailer pageee.co.uk/help/tech/device/Sony/SRS-ULT900WirelessSpeakerRead 15 October 2026UK spec table reproducing Sony data lists Custom EQ band: 10, Volume Step: 50, and the same driver sizes as the help guide. It lists water protection as Splashproof with no IP rating. It lists Bluetooth 5.3, SBC, AAC and LDAC, 153 W power consumption, 410 x 910 x 456 mm and 29.6 kg, which match the guide.

Automatic sound adjustmentiAdjusts audio to placement or playback conditions. Keep the named feature and conditions in the source note.

Yes1Owner's manualhelpguide.sony.net/speaker/7858/v1/en/print.pdfRead 10 October 2026Sound Field Optimization uses microphone sensing to detect surrounding noise and adjust the sound. It is on at purchase and switches off in Stereo Pair or Party Connect.

Yes1Owner's manualhelpguide.sony.net/speaker/7864/v1/en/print.pdfRead 15 October 2026Sound Field Optimization uses microphone sensing to detect noise around the speaker and adjust the sound. It is on at purchase and is turned off in Stereo Pair or Party Connect.

Sound modesiNamed playback modes. Battery extension modes are also qualified in battery source notes.

ULT1, ULT2, STAMINA1Owner's manualhelpguide.sony.net/speaker/7858/v1/en/print.pdfRead 10 October 2026ULT button cycles ULT1 for deep bass, ULT2 for more power and off. The STAMINA power option turns off lighting and sound effects to save battery. No STAMINA playtime is published.

ULT1, ULT2, TV Sound Booster, STAMINA1Owner's manualhelpguide.sony.net/speaker/7864/v1/en/print.pdfRead 15 October 2026ULT button cycles ULT1 (deep bass), ULT2 (sense of power) and off. TV Sound Booster is a named mode for optical TV audio. STAMINA is a power option in the app that turns off lighting and sound effects including ULT POWER SOUND to save battery. No STAMINA playtime is published, so battery_life_boost_h is left out.

Wireless stereo pairingiTwo compatible speakers can play separate left and right channels.

Yes1Owner's manualhelpguide.sony.net/speaker/7858/v1/en/print.pdfRead 10 October 2026Stereo Pair uses two speakers, one left and one right.

Yes1Owner's manualhelpguide.sony.net/speaker/7864/v1/en/print.pdfRead 15 October 2026Guide: Stereo Pair needs 2 ULT TOWER 9 speakers. One plays left and the other right over Bluetooth.

Speaker link protocolsiNamed systems for linking compatible speakers, such as PartyBoost, Auracast or Party Connect. Linking support does not establish compatibility across all models.

Party Connect, Stereo Pair1Owner's manualhelpguide.sony.net/speaker/7858/v1/en/print.pdfRead 10 October 2026Help guide names the Stereo Pair and Party Connect functions.2Press releasesony.mediaroom.com/2024-04-11-Sony-Electronics-Introduces-ULT-POWER-SOUND-R-,-A-New-Series-of-Speakers-and-Headphones-to-bring-Massive-Bass-and-the-Ultimate-VibeRead 10 October 2026Press release says users can link up to 100 compatible speakers through Party Connect.

Party Connect, Stereo Pair1Owner's manualhelpguide.sony.net/speaker/7864/v1/en/print.pdfRead 15 October 2026Guide names the Stereo Pair and Party Connect functions.

Max linked speakersiPublished maximum in a speaker group. A stereo pair is recorded separately. A figure such as 100+ is stored as 100.

1001Owner's manualhelpguide.sony.net/speaker/7858/v1/en/print.pdfRead 10 October 2026Party Connect links up to 100 compatible speakers over Bluetooth. Stereo Pair and Party Connect cannot be combined with multipoint.

1001Owner's manualhelpguide.sony.net/speaker/7864/v1/en/print.pdfRead 15 October 2026Party Connect links up to 100 Party Connect compatible speakers over Bluetooth. Wireless Party Chain devices are excluded.

Max Bluetooth group speakersiPublished maximum speakers in one Bluetooth playback group, including the first speaker. Source notes name the compatible models or families, linking system and firmware requirements. Wi-Fi groups and concurrent Bluetooth source devices are excluded. A stereo pair alone does not establish the maximum when other Bluetooth linking systems are supported. A figure such as 100+ is stored as 100.

1001Owner's manualhelpguide.sony.net/speaker/7858/v1/en/print.pdfRead 10 October 2026Party Connect section says up to 100 compatible speakers can be connected over Bluetooth. Compatible models: LSPX-S3, SRS-XP700, XP500, XG500, XG300, XB43, XB33, XB23, XE300, XE200, XV900, XV800, XV500, ULT FIELD 7 and ULT TOWER 10. Every speaker needs the latest pre-installed software. Wireless Party Chain devices are excluded. Whether the 100 includes the first speaker is not stated.

1001Owner's manualhelpguide.sony.net/speaker/7864/v1/en/print.pdfRead 15 October 2026Same Party Connect statement: up to 100 speakers over Bluetooth. Whether the 100 includes the first speaker is not stated. The guide points to https://www.sony.net/partyconnect-dvc/ for compatible models, and that page returned Access Denied, so the compatible models are not named here. Each speaker needs the latest pre-installed software. Codec switches to SBC and multipoint, Sound Field Optimization and the USB, AUDIO IN and OPTICAL IN sources are off while Party Connect is on.

Connectivity

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Bluetooth audio playbackiPlays audio streamed over Bluetooth from a phone or other source. Bluetooth used only for setup or app control does not count.

Yes1Owner's manualhelpguide.sony.net/speaker/7858/v1/en/print.pdfRead 10 October 2026

Yes1Owner's manualhelpguide.sony.net/speaker/7864/v1/en/print.pdfRead 15 October 2026

Bluetooth versioniVersion of the Bluetooth radio. Some Wi-Fi speakers use Bluetooth only for setup. See Bluetooth audio playback.

5.21Owner's manualhelpguide.sony.net/speaker/7858/v1/en/print.pdfRead 10 October 2026Help guide states Bluetooth standard version 5.2. SoundGuys lists 5.3. The maker guide is used.

5.31Owner's manualhelpguide.sony.net/speaker/7864/v1/en/print.pdfRead 15 October 2026Supported BLUETOOTH standard version 5.3.

Bluetooth codecsiExplicitly supported receive codecs. Bluetooth version alone does not establish codecs.

SBC, AAC, LDAC1Owner's manualhelpguide.sony.net/speaker/7858/v1/en/print.pdfRead 10 October 2026Help guide states the speaker supports SBC, AAC and LDAC for music playback over A2DP. SoundGuys mentions only SBC and AAC. The maker guide is used.

SBC, AAC, LDAC1Owner's manualhelpguide.sony.net/speaker/7864/v1/en/print.pdfRead 15 October 2026Guide: SBC, AAC and LDAC for music playback over an A2DP connection. Party Connect forces SBC.

Bluetooth profiles

A2DP, AVRCP, SPP1Owner's manualhelpguide.sony.net/speaker/7858/v1/en/print.pdfRead 10 October 2026Help guide lists A2DP and AVRCP.5Maker product pagesony.jp/active-speaker/products/ULT_FIELD7/spec.htmlRead 10 October 2026Specification table lists A2DP, AVRCP and SPP. Sony Singapore lists the same three profiles. The help guide lists A2DP and AVRCP. SPP is likely used for firmware updates, as Sony states for other models.6Maker product pagestore.sony.com.sg/blogs/8147834339483_45090312290459/8147834339483__specificationsRead 10 October 2026Specification page lists compatible profiles A2DP, AVRCP and SPP.

A2DP, AVRCP1Owner's manualhelpguide.sony.net/speaker/7864/v1/en/print.pdfRead 15 October 2026Guide lists A2DP and AVRCP. The UK EE spec table also lists SPP, which the guide does not, so SPP is left out.

Bluetooth LE AudioiExplicit LE Audio support. Bluetooth LE for app control alone does not qualify.

Not available

Not available

AuracastiExplicit Auracast support. Sending, receiving and speaker-group roles belong in source notes.

Not available

Not available

MultipointiConcurrent Bluetooth source connections. Pairing memory and speaker-to-speaker linking do not qualify.

Yes1Owner's manualhelpguide.sony.net/speaker/7858/v1/en/print.pdfRead 10 October 2026Help guide describes connecting concurrently with 2 Bluetooth devices. It is off in Stereo Pair or Party Connect.

Yes1Owner's manualhelpguide.sony.net/speaker/7864/v1/en/print.pdfRead 15 October 2026Guide describes connecting concurrently with 2 Bluetooth devices. It is not available in Stereo Pair or Party Connect.

Multipoint source devicesiMaximum concurrently connected Bluetooth source devices, not remembered pairings.

21Owner's manualhelpguide.sony.net/speaker/7858/v1/en/print.pdfRead 10 October 2026Up to 2 Bluetooth devices at once.

21Owner's manualhelpguide.sony.net/speaker/7864/v1/en/print.pdfRead 15 October 2026Up to 2 Bluetooth devices at once. The speaker remembers up to 8 paired devices but plays from one at a time.

Bluetooth range (claimed)iMaker-claimed Bluetooth range to the source device. Test conditions belong in the source note.

30m1Owner's manualhelpguide.sony.net/speaker/7858/v1/en/print.pdfRead 10 October 2026Maximum communication range about 30 m (98.4 ft).

30m1Owner's manualhelpguide.sony.net/speaker/7864/v1/en/print.pdfRead 15 October 2026Maximum communication range about 30 m (98.4 ft) in line of sight. It shortens with obstacles and 2.4 GHz interference.

Wi-FiiBuilt-in Wi-Fi, for audio streaming, setup or control.

Not available

No3Retailer pageabt.com/Sony-ULT-POWER-SOUND-Series-ULT-TOWER-9-Party-Speaker-Bluetooth-in-Black-SRSULT900/p/221687.htmlRead 15 October 2026Quick Specs list Wi-Fi: No. The Sony help guide describes Bluetooth only.

Wi-Fi standardsiOne 802.11 name per item, such as 802.11ax. A Wi-Fi generation is written as its standard, so Wi-Fi 5 is 802.11ac and Wi-Fi 6 is 802.11ax. Older standards are listed only when a source names them.

Not available

Not available

Network audio protocolsiNamed systems that stream audio to the speaker over the home network. AirPlay is written as AirPlay 2. Chromecast built-in is written as Google Cast. Other names follow the maker, such as Spotify Connect.

Not available

Not available

USB audio inputiPlayback from a connected computer or phone through USB. Charging, service ports and USB flash-drive playback do not qualify.

Not available

Not available

USB drive playbackiPlayback of audio files on a connected USB storage device.

Yes1Owner's manualhelpguide.sony.net/speaker/7858/v1/en/print.pdfRead 10 October 2026Help guide describes playback from a USB Mass Storage Class device on the PLAY/CHARGE OUTPUT port.

Yes1Owner's manualhelpguide.sony.net/speaker/7864/v1/en/print.pdfRead 15 October 2026Guide describes playback from a USB Mass Storage Class device formatted FAT (not exFAT) on the PLAY/CHARGE OUTPUT port. iPhone over USB is not supported. USB audio from a computer is not described.

USB audio file formats

MP3, WMA, WAV1Owner's manualhelpguide.sony.net/speaker/7858/v1/en/print.pdfRead 10 October 2026Supported audio file formats are MP3, WMA and WAV.

MP3, WMA, WAV1Owner's manualhelpguide.sony.net/speaker/7864/v1/en/print.pdfRead 15 October 2026Supported audio file formats are MP3, WMA and WAV.

PortsiPhysical speaker connectors. Record charging, audio input, power output and service roles separately. A shared microphone and guitar jack is one port. A combo jack that takes XLR and 6.35 mm plugs is 6.35 mm audio, and the role names XLR. Optical is a TOSLINK digital audio socket.

ASony ULT FIELD 7

Connector	Count	Role
AC power	1	AC power input
USB-A	1	USB storage playback and charging output for other devices
3.5 mm audio	1	Audio input
6.35 mm audio	1	Microphone and guitar input

Source1Owner's manualhelpguide.sony.net/speaker/7858/v1/en/print.pdfRead 10 October 2026Parts list: AC input jack, PLAY/CHARGE OUTPUT USB Type A port, AUDIO IN 3.5 mm jack and MIC/GUITAR 6.3 mm jack. The USB port is DC 5 V, max 1.5 A output for charging other devices.

BSony ULT TOWER 9

Connector	Count	Role
AC power	1	AC power input
USB-A	1	USB storage playback and charging output for other devices
3.5 mm audio	1	Audio input
6.35 mm audio	1	MIC1 microphone input
6.35 mm audio	1	MIC2 and GUITAR input
Optical (TOSLINK)	1	Optical digital audio input (PCM)

Source1Owner's manualhelpguide.sony.net/speaker/7864/v1/en/print.pdfRead 15 October 2026Parts list: AC input jack, PLAY/CHARGE OUTPUT USB port (Type A in the specifications), AUDIO IN jack (3.5 mm), OPTICAL IN connector (PCM, fs 32/44.1/48/96 kHz), MIC1 jack (6.3 mm) and MIC2/GUITAR jack (6.3 mm). The USB port and the optical, audio and mic jacks sit behind caps. The 6.3 mm connectors are counted as 6.35 mm.

Controls and software

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SpeakerphoneiBuilt-in microphone and call support, through a connected phone or a voice assistant's calling. A microphone used only for voice commands does not count. Microphone inputs for karaoke are separate.

No3Reviewsoundguys.com/sony-ult-field-7-review-is-this-the-best-portable-party-speaker-138823Read 10 October 2026Review FAQ states the speaker does not contain a built-in microphone for phone calls. The help guide lists no call function.

No3Retailer pageabt.com/Sony-ULT-POWER-SOUND-Series-ULT-TOWER-9-Party-Speaker-Bluetooth-in-Black-SRSULT900/p/221687.htmlRead 15 October 2026Spec table lists Built-In Mic: No. The help guide has no call function. The microphone sensing of Sound Field Optimization is not for calls.

Voice assistantsiVoice assistants explicitly usable through the speaker, such as Amazon Alexa, Google Assistant, Siri or Sonos Voice Control. State whether a connected phone is required.

Not available

Not available

Controls

Power, Bluetooth pairing, Play/pause, Volume up/down, ULT sound mode, Lighting, Battery level and Battery Care, Key control, Echo, Guitar mode, Microphone and guitar level1Owner's manualhelpguide.sony.net/speaker/7858/v1/en/print.pdfRead 10 October 2026Parts list: power, Bluetooth, play, volume minus and plus, ULT, light, battery and battery care, key control, echo, guitar buttons and the mic and guitar level knob.

Power, ULT sound mode, Bluetooth pairing, Optical input select, TV Sound Booster, Audio input select, USB input select, Party Connect, Stereo Pair, Lighting on and off, Lighting color selectors, Multi color lighting, Volume up and down, Play, pause and skip, Key control, Echo, Guitar mode, Microphone level knob, Microphone and guitar level knob, Battery level and Battery Care1Owner's manualhelpguide.sony.net/speaker/7864/v1/en/print.pdfRead 15 October 2026Parts list: power button, ULT, CHARGE indicator, direct function keys (Bluetooth, OPTICAL IN, TV SOUND BOOSTER, AUDIO IN, USB), MULTI COLOR, CONNECT, STEREO PAIR, lighting color selectors, KEY CONTROL flat and sharp, ECHO, LIGHT, volume minus and plus, play, MIC level knob, MIC and GUITAR level knob, GUITAR button and the BATTERY and BATTERY CARE button behind the rear cap.

Companion app

Sony | Sound Connect1Owner's manualhelpguide.sony.net/speaker/7858/v1/en/print.pdfRead 10 October 2026Help guide says the speaker is compatible with Sony | Sound Connect since April 2025. It also works with Sony | Music Center and the Fiestable app for karaoke, DJ effects and lighting.

Sony | Sound Connect1Owner's manualhelpguide.sony.net/speaker/7864/v1/en/print.pdfRead 15 October 2026Guide: Sony | Sound Connect app for updates, sound settings, equalizer, lighting, TV Sound Booster and party functions.

App platforms

iOS, Android1Owner's manualhelpguide.sony.net/speaker/7858/v1/en/print.pdfRead 10 October 2026Help guide links Google Play and the App Store for the apps.

iOS, Android1Owner's manualhelpguide.sony.net/speaker/7864/v1/en/print.pdfRead 15 October 2026Guide: download from the Google Play store or the App Store.

User firmware updates

Yes1Owner's manualhelpguide.sony.net/speaker/7858/v1/en/print.pdfRead 10 October 2026Help guide has an Updating the pre-installed software section.

Yes1Owner's manualhelpguide.sony.net/speaker/7864/v1/en/print.pdfRead 15 October 2026Guide has a section on updating the speaker software through the Sony | Sound Connect app.

Built-in lightingiDecorative or ambient lighting. Status, battery, connection and microphone indicator LEDs alone do not qualify.

Yes1Owner's manualhelpguide.sony.net/speaker/7858/v1/en/print.pdfRead 10 October 2026Help guide describes the speaker lights that light up with the music, a LIGHT button and lighting modes in the apps.

Yes1Owner's manualhelpguide.sony.net/speaker/7864/v1/en/print.pdfRead 15 October 2026Guide: the speaker lights up with the music. Lighting is on at purchase.

Lighting modes

Not available

Multi color, Red, Yellow, Green, Blue, Purple1Owner's manualhelpguide.sony.net/speaker/7864/v1/en/print.pdfRead 15 October 2026Guide: five lighting color selectors (red, yellow, green, blue, purple) and MULTI COLOR for the default multicolor mode. The app has a Lighting Mode function and Party Light functions that are not listed here.

Smart home

None of 3 known

Matter controlleriCan add and control Matter devices. Being a Matter device alone does not count.

Not available

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Thread border routeriConnects Thread smart home devices to the home network.

Not available

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Zigbee hubiA built-in Zigbee radio that controls Zigbee smart home devices.

Not available

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Battery and charging

3 of 17 differ

Built-in battery

Yes1Owner's manualhelpguide.sony.net/speaker/7858/v1/en/print.pdfRead 10 October 2026Specifications list a built-in lithium-ion battery.

Yes1Owner's manualhelpguide.sony.net/speaker/7864/v1/en/print.pdfRead 15 October 2026Guide: the speaker runs on AC power or on the built-in lithium-ion battery.

Playback time (claimed)iMaximum maker-claimed music playback on one charge in normal playback mode. Battery extension or reduced-bass boost modes belong in battery_life_boost_h. Record volume and lighting conditions in the source note.

30h1Owner's manualhelpguide.sony.net/speaker/7858/v1/en/print.pdfRead 10 October 2026Help guide: about 30 hours at volume level 16 with ULT1/2 on and lighting off. About 25 hours with lighting on and about 3 hours at maximum volume 50 with lighting on. Measured with a Sony specified music source.

25h1Owner's manualhelpguide.sony.net/speaker/7864/v1/en/print.pdfRead 15 October 2026Guide: about 25 hours at volume level 18 with ULT1/2 on and lighting off over a Bluetooth connection, not in Battery Care mode. About 12 hours with lighting on at volume 18 and about 2.5 hours at maximum volume 50 with ULT1/2 and lighting on. Measured with a Sony specified music source.

Playback with battery extension (claimed)iTotal claimed runtime with the named battery extension mode enabled. Store the total, not only the extra hours. Keep sound and lighting restrictions in the source note.

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Battery energyiPublished battery pack energy. Do not calculate from an assumed voltage.

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Battery capacityiPublished pack capacity at the voltage in battery_voltage_v. Do not substitute power-bank output capacity. A figure written per cell, such as 5000mAh*2, is not a pack capacity unless the maker states the pack figure.

Not available

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Nominal battery voltage

Not available

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Battery chemistry

Lithium-ion1Owner's manualhelpguide.sony.net/speaker/7858/v1/en/print.pdfRead 10 October 2026Specifications list a built-in lithium-ion battery.

Lithium-ion1Owner's manualhelpguide.sony.net/speaker/7864/v1/en/print.pdfRead 15 October 2026Guide specifications and power section: built-in lithium-ion battery. Capacity in Wh or mAh is not published.

User-replaceable batteryiBattery that the maker documents as replaceable by the user. Service replacement does not qualify.

Not available

Not available

Full charge timeiTime from discharged to full under the maker conditions. Adapter rating and simultaneous use belong in source notes.

5h1Owner's manualhelpguide.sony.net/speaker/7858/v1/en/print.pdfRead 10 October 2026Help guide: charging completes in about 5 hours from empty with the speaker turned off.

3h1Owner's manualhelpguide.sony.net/speaker/7864/v1/en/print.pdfRead 15 October 2026Guide: charging completes in about 3 hours from empty to 100 percent with the speaker turned off. Battery Care mode limits the charge to about 90 percent.

Quick charge duration

10min1Owner's manualhelpguide.sony.net/speaker/7858/v1/en/print.pdfRead 10 October 2026Help guide: 10 minutes of charging gives about 3 hours of playback.

10min1Owner's manualhelpguide.sony.net/speaker/7864/v1/en/print.pdfRead 15 October 2026Guide: 10 minutes of charging provides about 180 minutes of music playback.

Playback after quick chargeiClaimed music playback after quick_charge_min of charging. Source conditions apply.

3h1Owner's manualhelpguide.sony.net/speaker/7858/v1/en/print.pdfRead 10 October 2026Help guide: about 3 hours of music playback after 10 minutes of charging at volume level 16, ULT1/2 on, lighting off.

3h1Owner's manualhelpguide.sony.net/speaker/7864/v1/en/print.pdfRead 15 October 2026180 minutes is stored as 3 hours. Conditions are volume level 18, ULT1/2 on and lighting off.

Charging input ratingiPublished speaker input voltage and current. An adapter rating alone does not establish device input.

AC 120 V, 60 Hz in North America. AC 120 V to 240 V, 50/60 Hz in other regions1Owner's manualhelpguide.sony.net/speaker/7858/v1/en/print.pdfRead 10 October 2026Specifications list the AC input by region. The battery charges from the AC input. SoundGuys states charging is by AC only.

AC 120 V, 60 Hz in North America. AC 120 V to 240 V, 50/60 Hz in other regions1Owner's manualhelpguide.sony.net/speaker/7864/v1/en/print.pdfRead 15 October 2026Specifications, Power: AC 120 V, 60 Hz for North America. AC 120 V to 240 V, 50/60 Hz for other countries and regions. Power consumption is about 153 W and is not a charging figure. The battery charges only from the AC input jack.

Max charging inputiPublished maximum charging input. USB audio power requirements and adapter output are separate.

Not available

Not available

USB Power Delivery charging

Not available

Not available

Charges other devices

Yes1Owner's manualhelpguide.sony.net/speaker/7858/v1/en/print.pdfRead 10 October 2026Help guide describes charging a smartphone or other USB device from the PLAY/CHARGE OUTPUT port. Output is DC 5 V, max 1.5 A.

Yes1Owner's manualhelpguide.sony.net/speaker/7864/v1/en/print.pdfRead 15 October 2026Guide: a smartphone or other USB device charges from the PLAY/CHARGE OUTPUT port, also from the battery with no AC connected. It does not work when the battery is low.

Max power-bank outputiPublished power delivered by the speaker to another device. Output voltage and current belong in the source note.

Not available

7.5W1Owner's manualhelpguide.sony.net/speaker/7864/v1/en/print.pdfRead 15 October 2026Specifications, DC OUT: Type A USB port, DC 5 V and MAX 1.5 A. 5 V x 1.5 A is 7.5 W.

Wireless chargingiThe speaker battery can be charged wirelessly. Wireless power output to another device is separate.

Not available

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Durability

2 of 5 differ

Dust and water ratingiExact published IP rating. Keep separate ratings, such as IP68 and IP69, as separate entries.

IP671Owner's manualhelpguide.sony.net/speaker/7858/v1/en/print.pdfRead 10 October 2026Help guide states waterproof specification IPX7 and dustproof specification IP6X with the cap closed. The press release footnote says IP67 water resistant and IP5X dustproof. The guide is used.

Not available

Floats

Not available

Not available

Drop resistanceiExplicit maker claim or defined drop test. Do not infer from rugged wording.

Not available

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Drop test heightiMaker-published tested height. Surface and conditions belong in source notes.

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Not available

Carry featuresiPublished handles, straps, carabiners or wheels.

Carry handles1Owner's manualhelpguide.sony.net/speaker/7858/v1/en/print.pdfRead 10 October 2026Parts list names handles.

Carry handle, Caster wheels1Owner's manualhelpguide.sony.net/speaker/7864/v1/en/print.pdfRead 15 October 2026Guide: a handle and caster wheels. The wheels work on flat surfaces only. On uneven surfaces two people lift the speaker by the handle.

Measured

None of 6 known

Playback time (measured)iReviewer-measured playback per charge. Volume, lighting, sound mode, firmware and connection belong in the source note.

Not available

Not available

Max sound pressure (measured)iReviewer-measured maximum SPL. Distance, test method and power source belong in source notes.

Not available

Not available

Low-frequency extension (measured)iReviewer-measured low-frequency limit. Threshold and test method belong in source notes.

Not available

Not available

High-frequency extension (measured)iReviewer-measured high-frequency limit. Threshold and test method belong in source notes.

Not available

Not available

Audio latency (measured)iReviewer-measured source-to-speaker latency. Source device, app, codec, firmware and connection belong in source notes. App compensation may affect results.

Not available

Not available

Full charge time (measured)iReviewer-measured time from empty to full. Power adapter and method belong in the source note.

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Dimensions and weight

3 of 3 differ

DimensionsiSpeaker body width, height and depth on explicitly identified axes. Unlabeled tuples do not establish axis meanings. Handle, strap and orientation conditions belong in the source note.

Width512Height224Depth222mm(20.2 × 8.8 × 8.7 in)1Owner's manualhelpguide.sony.net/speaker/7858/v1/en/print.pdfRead 10 October 2026Specifications list about 512 mm x 224 mm x 222 mm (w/h/d) including projecting parts and controls. SoundGuys lists 571 x 226 x 304 mm. The maker figure is used.

Width410Height910Depth456mm(16.1 × 35.8 × 18 in)1Owner's manualhelpguide.sony.net/speaker/7864/v1/en/print.pdfRead 15 October 2026Specifications: about 410 mm x 910 mm x 456 mm (W x H x D) including projecting parts and controls.

WeightiSpeaker mass including its battery. Excludes packaging, charger and removable carry accessories unless the source states otherwise.

6,300g(13.9 lb)1Owner's manualhelpguide.sony.net/speaker/7858/v1/en/print.pdfRead 10 October 2026Specifications list mass of about 6.3 kg including battery. Amazon also lists 6.3 kg.

29,600g(65.3 lb)1Owner's manualhelpguide.sony.net/speaker/7864/v1/en/print.pdfRead 15 October 2026Specifications: mass about 29.6 kg including battery. Retailers list 65.26 lb. This is far above the peer median because the product is a floor-standing party tower on caster wheels.

Body materials

Hard plastic, Fabric grille5Maker product pagesony.jp/active-speaker/products/ULT_FIELD7/spec.htmlRead 10 October 2026Specification table lists the grille net material as fabric. Tom's Guide describes the body as hard plastic wrapped in rugged mesh weaving.8Reviewtomsguide.com/audio/speakers/sony-ult-field-7Read 10 October 2026Review describes a cylindrical design wrapped in hard plastic and rugged mesh weaving.

Plastic (partly recycled)3Retailer pageabt.com/Sony-ULT-POWER-SOUND-Series-ULT-TOWER-9-Party-Speaker-Bluetooth-in-Black-SRSULT900/p/221687.htmlRead 15 October 2026Copy of the Sony page says recycled plastic originally developed for Sony is partially used for the body. Other body materials are not published.

Certifications

None of 1 known

FCC IDs

Not available

Not available

Other certifications

Not available

Not available

In the box

1 of 1 differ

In the box

Not available

ULT TOWER 9 speaker, AC power cord, Optical digital cable, Reference Guide1Owner's manualhelpguide.sony.net/speaker/7864/v1/en/print.pdfRead 15 October 2026Guide names the supplied AC power cord, the supplied optical digital cable and a Reference Guide included with the product.

Links

Not compared

Product page

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Spec sheet

store.sony.com.sg/blogs/8147834339483_45090312290459/8147834339483__specifications6Maker product pagestore.sony.com.sg/blogs/8147834339483_45090312290459/8147834339483__specificationsRead 10 October 2026Sony Store Singapore specification page for the SRS-ULT70 (English).

Not available

Manual

helpguide.sony.net/speaker/7858/v1/en/print.pdf1Owner's manualhelpguide.sony.net/speaker/7858/v1/en/print.pdfRead 10 October 2026Sony English help guide for ULT FIELD 7, full print PDF opened. Copyright 2024, revision with Sound Connect text added in 2025.

helpguide.sony.net/speaker/7864/v1/en/print.pdf1Owner's manualhelpguide.sony.net/speaker/7864/v1/en/print.pdfRead 15 October 2026Sony English help guide for ULT TOWER 9, full print PDF read. Copyright 2025 Sony Corporation, 104 pages.

EPREL registration numberiId in the EU energy label database. Each size or model of a series has its own id, so it is per variant.

Not available

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Warranty

1 of 1 differ

Manufacturer warranty (source market)iThe maker's warranty period for the exact SKU or configuration and market named in the source note. It applies only to that stated market, not every regional variant. Statutory consumer rights are excluded. The base term is stored. An extension that needs registration goes in the source note.

Not available

1year3Retailer pageabt.com/Sony-ULT-POWER-SOUND-Series-ULT-TOWER-9-Party-Speaker-Bluetooth-in-Black-SRSULT900/p/221687.htmlRead 15 October 2026US listing gives a 1 year limited parts warranty and a 1 year limited labor warranty. The UK EE spec table gives 24 months. Other markets are not covered.

Both are also in the API. Back to all wireless speakers.