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Harman Kardon Onyx Studio 9 vs Ultimate Ears EPICBOOM

A

Product A: Harman Kardon

Onyx Studio 9

54 of 96 known

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B

Product B: Ultimate Ears

EPICBOOM

44 of 96 known

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All 96 fields

Every value links to where we found it.

Only differences

AHarman Kardon Onyx Studio 9

BUltimate Ears EPICBOOM

General

5 of 8 differ

Series

Onyx Studio1Maker spec sheet (PDF)regard.ru/api/site/files/goodspdf/download/11332Read 16 October 2026Maker sheet is titled Onyx Studio 9. Series name from the Onyx Studio line.

BOOM1Maker product pageultimateears.com/en-us/shop/p/epicboom-bluetoothRead 8 October 2026

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

HKOS9BLKEP, HKOS9GRYEP, HKOS9BLKAM8Retailer pagepood.datafox.ee/harman-kardon-onyx-studio-9-portable-speakerRead 16 October 2026Manufacturer code HKOS9GRYEP, the grey EU item.9Retailer pagepood.datafox.ee/harman-kardon-onyx-studio-9-speakerRead 16 October 2026Manufacturer code HKOS9BLKEP, the black EU item.10Retailer pageep-online.ch/catv/de/p/1475591/onyx-studio-9Read 16 October 2026HKOS9GRYEP.11Retailer pagepanacompu.com/panama/en/product-information/harman-kardon-onyx-studio-9-portable-wireless-speaker-bluetooth-blackRead 16 October 2026Listing gives model and part number HKOS9BLKAM, the Americas black item.

Not available

GTIN / EAN

1200130014116, 12001300182378Retailer pagepood.datafox.ee/harman-kardon-onyx-studio-9-portable-speakerRead 16 October 2026Listing gives EAN 1200130018237 for HKOS9GRYEP. The ep-online listing gives the same code.9Retailer pagepood.datafox.ee/harman-kardon-onyx-studio-9-speakerRead 16 October 2026Listing gives EAN 1200130014116 for HKOS9BLKEP. The ep-online listing gives the same code.10Retailer pageep-online.ch/catv/de/p/1475591/onyx-studio-9Read 16 October 2026Swiss listing for HKOS9GRYEP gives EAN 1200130018237 and net weight 3.33 kg.

Not available

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

September 20244Press articlephileweb.com/sp/news/d-av/202410/31/61425.htmlRead 16 October 2026Japanese trade report dated 31 October 2024 says the speaker was first shown at a September 2024 event.

6 September 20234Press releasenews.logitech.com/press-releases/news-details/2023/New-EPICBOOM-Speaker-Launches-with-Fresh-Portable-Design-and-Huge-360-Sound/default.aspxRead 8 October 2026

Status

Available5Reviewt3.com/tech/bluetooth-speakers/harman-kardon-onyx-studio-9-reviewRead 16 October 2026Review lists current retail offers.

Available1Maker product pageultimateears.com/en-us/shop/p/epicboom-bluetoothRead 8 October 2026

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.

$299.955Reviewt3.com/tech/bluetooth-speakers/harman-kardon-onyx-studio-9-reviewRead 16 October 2026Review says the official US price is $299.95. 9to5Toys says the model originally launched at $300. Tax treatment is not stated.

$349.994Press releasenews.logitech.com/press-releases/news-details/2023/New-EPICBOOM-Speaker-Launches-with-Fresh-Portable-Design-and-Huge-360-Sound/default.aspxRead 8 October 2026US launch MSRP $349.99 before tax.

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.

Not available

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, EU11Retailer pagepanacompu.com/panama/en/product-information/harman-kardon-onyx-studio-9-portable-wireless-speaker-bluetooth-blackRead 16 October 2026The AM code is the US item code. Panama sells the same item.

US1Maker product pageultimateears.com/en-us/shop/p/epicboom-bluetoothRead 8 October 2026

ColoursiThe maker's own colour names

Classic Black, Stone Grey3Press releasenews.harmankardon.com/en-GB/245491-harman-kardon-onyx-studio-9-combines-timeless-design-with-innovative-new-featuresRead 16 October 2026Available in Classic Black and Stone Grey. UK press release dated 6 January 2025 with UK availability from February 2025 at 229.99 GBP.4Press articlephileweb.com/sp/news/d-av/202410/31/61425.htmlRead 16 October 2026Japan sells it in Classic Black and Light Grey.

Charcoal Black, Cotton White1Maker product pageultimateears.com/en-us/shop/p/epicboom-bluetoothRead 8 October 2026

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.

Portable1Maker spec sheet (PDF)regard.ru/api/site/files/goodspdf/download/11332Read 16 October 2026Maker title: portable stereo Bluetooth home speaker with a built-in battery and an integrated handle.

Portable1Maker product pageultimateears.com/en-us/shop/p/epicboom-bluetoothRead 8 October 2026

Audio

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

Stereo1Maker spec sheet (PDF)regard.ru/api/site/files/goodspdf/download/11332Read 16 October 2026Maker title says stereo. Constant Sound Field mixes the music to a three-channel system with a dedicated center channel and two tweeters.

Stereo5Reviewrtings.com/speaker/reviews/ultimate-ears/epicboomRead 8 October 2026Public Music verdict explicitly states stereo playback without downmixing to mono.

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.

AHarman Kardon Onyx Studio 9

Driver type	Count	Diameter (mm)
Woofer	1	120
Tweeter	3	20

Source1Maker spec sheet (PDF)regard.ru/api/site/files/goodspdf/download/11332Read 16 October 2026Woofer 1 x 120 mm and tweeter 3 x 20 mm. One tweeter is the center channel and two face the sides, per the Fnac lab. No per-driver power is published.

BUltimate Ears EPICBOOM

Driver type	Count
Mid-high frequency	2
Woofer	1

Source1Maker product pageultimateears.com/en-us/shop/p/epicboom-bluetoothRead 8 October 2026Product embedded technical specs: two active mid-high frequency transducers and one woofer. Diameters omitted due to differing maker support and launch figures.

Passive radiatorsiPassive, unpowered bass radiators. Excludes powered drivers.

Not available

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.

50W1Maker spec sheet (PDF)regard.ru/api/site/files/goodspdf/download/11332Read 16 October 2026Rated output power 50 W RMS. No separate battery and mains rating is published.

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

Not available

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.

50Hz1Maker spec sheet (PDF)regard.ru/api/site/files/goodspdf/download/11332Read 16 October 202650 Hz to 20 kHz at -6 dB.

55Hz2Maker product pagesupport.logi.com/hc/en-us/articles/15737920299287-Specification-UE-EPICBOOMRead 8 October 2026Support frequency response 55 Hz to 20 kHz, +/-3 dB at 80 dB SPL, free field.

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.

20kHz1Maker spec sheet (PDF)regard.ru/api/site/files/goodspdf/download/11332Read 16 October 202650 Hz to 20 kHz at -6 dB.

20kHz2Maker product pagesupport.logi.com/hc/en-us/articles/15737920299287-Specification-UE-EPICBOOMRead 8 October 2026Support frequency response 55 Hz to 20 kHz, +/-3 dB at 80 dB SPL, free field.

Signal-to-noise ratio (claimed)

80dB1Maker spec sheet (PDF)regard.ru/api/site/files/goodspdf/download/11332Read 16 October 2026Published as greater than 80 dB. The stored number is the lower bound.

Not available

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

Yes1Maker spec sheet (PDF)regard.ru/api/site/files/goodspdf/download/11332Read 16 October 2026The Harman Kardon One app customizes the EQ.

Yes1Maker product pageultimateears.com/en-us/shop/p/epicboom-bluetoothRead 8 October 2026

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

75Reviewt3.com/tech/bluetooth-speakers/harman-kardon-onyx-studio-9-reviewRead 16 October 2026The Customize preset opens a seven-band EQ with plus or minus 12 dB from below 120 Hz to above 8 kHz.

Not available

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

Yes1Maker spec sheet (PDF)regard.ru/api/site/files/goodspdf/download/11332Read 16 October 2026Self-Tuning: when you power on, the speaker automatically calibrates to its environment.

Yes3Owner's manualsupport.logi.com/hc/en-us/articles/15737936632983-Getting-Started-UE-EPICBOOMRead 8 October 2026Adaptive EQ control explicitly includes EPICBOOM and adjusts sound for the environment. Internal microphone is for acoustic adjustment, not calls.

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

Signature Sound, Vocal, Energetic, Chill5Reviewt3.com/tech/bluetooth-speakers/harman-kardon-onyx-studio-9-reviewRead 16 October 2026App listening presets: Signature Sound, Vocal, Energetic, Chill and Customize. Customize is the manual EQ and is not stored as a mode.12Reviewcellphones.com.vn/sforum/danh-gia-harman-kardon-onyx-studio-9Read 16 October 2026Review lists the same app presets: Signature Sound, Vocal, Energetic, Chill.

Signature, Bass Boost, Game/Cinema, Podcast/Vocal, Deep Relaxation, Outdoor Boost4Press releasenews.logitech.com/press-releases/news-details/2023/New-EPICBOOM-Speaker-Launches-with-Fresh-Portable-Design-and-Huge-360-Sound/default.aspxRead 8 October 2026Maker launch lists five BOOM app EQ presets and Outdoor Boost. Current product technical text lists four presets but does not explicitly deny Podcast/Vocal.

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

Yes1Maker spec sheet (PDF)regard.ru/api/site/files/goodspdf/download/11332Read 16 October 2026Two Onyx Studio 9 speakers can be paired wirelessly for a wider stereo soundstage.2Owner's manualelmir.ua/response/product-instruction.phpRead 16 October 2026Stereo boost pairing section: pair for left and right channels, with swap and unpair steps.

Not available

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

Auracast1Maker spec sheet (PDF)regard.ru/api/site/files/goodspdf/download/11332Read 16 October 2026Multi-speaker connection by Auracast with two or more Harman Kardon speakers or compatible speakers from other brands. The sheet says as many speakers as you want, with no number.3Press releasenews.harmankardon.com/en-GB/245491-harman-kardon-onyx-studio-9-combines-timeless-design-with-innovative-new-featuresRead 16 October 2026Auracast connects to another Onyx Studio 9 or any other Auracast-enabled Harman Kardon speaker.

PartyUp3Owner's manualsupport.logi.com/hc/en-us/articles/15737936632983-Getting-Started-UE-EPICBOOMRead 8 October 2026PartyUp requires up-to-date BOOM app and speaker firmware. BOOM, MEGABOOM, EPICBOOM and HYPERBOOM families supported. No precise maximum imported because maker product pages say over 150.

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

Not available

Not available

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.

Not available

Not available

Connectivity

7 of 16 differ

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

Yes1Maker spec sheet (PDF)regard.ru/api/site/files/goodspdf/download/11332Read 16 October 2026

Yes1Maker product pageultimateears.com/en-us/shop/p/epicboom-bluetoothRead 8 October 2026

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

5.31Maker spec sheet (PDF)regard.ru/api/site/files/goodspdf/download/11332Read 16 October 2026Bluetooth 5.3.

5.12Maker product pagesupport.logi.com/hc/en-us/articles/15737920299287-Specification-UE-EPICBOOMRead 8 October 2026

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

Not available

Not available

Bluetooth profiles

A2DP 1.4, AVRCP 1.61Maker spec sheet (PDF)regard.ru/api/site/files/goodspdf/download/11332Read 16 October 2026A2DP 1.4 and AVRCP 1.6.

A2DP1Maker product pageultimateears.com/en-us/shop/p/epicboom-bluetoothRead 8 October 2026

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.

Yes1Maker spec sheet (PDF)regard.ru/api/site/files/goodspdf/download/11332Read 16 October 2026Auracast button on the speaker or in the app. Sending and receiving roles are not stated.

Not available

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

Yes1Maker spec sheet (PDF)regard.ru/api/site/files/goodspdf/download/11332Read 16 October 2026Pairs with up to two mobile devices simultaneously.

No5Reviewrtings.com/speaker/reviews/ultimate-ears/epicboomRead 8 October 2026Public Music/Outdoors verdict explicitly lists no Bluetooth multi-device pairing.

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

22Owner's manualelmir.ua/response/product-instruction.phpRead 16 October 2026Multi-point connection section: maximum 2 devices.

Not available

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

Not available

55m1Maker product pageultimateears.com/en-us/shop/p/epicboom-bluetoothRead 8 October 2026

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

No6Measurementleclaireur.fnac.com/test/589784-test-labo-harman-kardon-onyx-studio-9Read 16 October 2026Lab review says there is no Wi-Fi, so no AirPlay 2 or Chromecast.7Retailer pageldlc.pro/fr-be/fiche/PB00671696.htmlRead 16 October 2026Retailer spec table lists Wi-Fi: no.

No5Reviewrtings.com/speaker/reviews/ultimate-ears/epicboomRead 8 October 2026Public Wi-Fi row explicitly says No.

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.

Not available

Not available

USB audio file formats

Not available

Not available

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.

AHarman Kardon Onyx Studio 9

Connector	Count	Role
AC power	1	Mains power input and battery charging
3.5 mm audio	1	AUX audio input. The cable is not included
USB-C	1	Charge output for mobile devices, rated 5 V / 2.1 A max. Service port outside the US. On the US version it also plays MP3 files

Source2Owner's manualelmir.ua/response/product-instruction.phpRead 16 October 2026Guide shows a power cord, a section on playing music through an audio cable (cable not included) and a USB-C powerbank section. Tech spec: USB audio playback is for the US version only. Other versions use USB for service only. Supported file format mp3.6Measurementleclaireur.fnac.com/test/589784-test-labo-harman-kardon-onyx-studio-9Read 16 October 2026Back panel: mains cable, auxiliary input and a USB-C port that only charges another device.

BUltimate Ears EPICBOOM

Connector	Count	Role
USB-C	1	Charging input

Source2Maker product pagesupport.logi.com/hc/en-us/articles/15737920299287-Specification-UE-EPICBOOMRead 8 October 2026

Controls and software

4 of 8 differ

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.

No7Retailer pageldlc.pro/fr-be/fiche/PB00671696.htmlRead 16 October 2026Retailer spec table lists built-in microphone: no and no voice assistant.

Not available

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, Volume up and down, Play/pause, next and previous track (one, two or three presses), Auracast multi-speaker connection2Owner's manualelmir.ua/response/product-instruction.phpRead 16 October 2026Bluetooth pairing, music streaming (one press, two presses, three presses), Auracast multi-speaker connection and a reboot by holding for more than 10 seconds.5Reviewt3.com/tech/bluetooth-speakers/harman-kardon-onyx-studio-9-reviewRead 16 October 2026Top controls handle on/off, separate volume up and down, play/pause, Bluetooth connection and a separate Auracast button.

Power, Bluetooth pairing, Volume up/down, Play/pause, Next/previous track, Magic Button playlist shortcut, Outdoor Boost, Battery level3Owner's manualsupport.logi.com/hc/en-us/articles/15737936632983-Getting-Started-UE-EPICBOOMRead 8 October 2026

Companion app

Harman Kardon One1Maker spec sheet (PDF)regard.ru/api/site/files/goodspdf/download/11332Read 16 October 2026Harman Kardon One app.

UE | BOOM2Maker product pagesupport.logi.com/hc/en-us/articles/15737920299287-Specification-UE-EPICBOOMRead 8 October 2026

App platforms

Android, iOS12Reviewcellphones.com.vn/sforum/danh-gia-harman-kardon-onyx-studio-9Read 16 October 2026Review says the Harman Kardon One app works on Android and iOS.

iOS, Android2Maker product pagesupport.logi.com/hc/en-us/articles/15737920299287-Specification-UE-EPICBOOMRead 8 October 2026

User firmware updates

Yes2Owner's manualelmir.ua/response/product-instruction.phpRead 16 October 2026Use the Harman Kardon One app for speaker configuration and software upgrade.

Yes3Owner's manualsupport.logi.com/hc/en-us/articles/15737936632983-Getting-Started-UE-EPICBOOMRead 8 October 2026Speaker Updates and PartyUp sections explicitly document OTA updates via the BOOM app.

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

Not available

Not available

Lighting modes

Not available

Not available

Smart home

None of 3 known

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

Not available

Not available

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

Not available

Not available

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

Not available

Not available

Battery and charging

9 of 17 differ

Built-in battery

Yes1Maker spec sheet (PDF)regard.ru/api/site/files/goodspdf/download/11332Read 16 October 2026Built-in rechargeable battery.

Yes1Maker product pageultimateears.com/en-us/shop/p/epicboom-bluetoothRead 8 October 2026

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.

8h1Maker spec sheet (PDF)regard.ru/api/site/files/goodspdf/download/11332Read 16 October 2026Up to 8 hours, depending on volume level and audio content. No test volume is stated.

17h1Maker product pageultimateears.com/en-us/shop/p/epicboom-bluetoothRead 8 October 2026Embedded technical specs qualify up to 17 hours at default volume 45%. Actual runtime varies with use, settings and environmental conditions.

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.

Not available

Not available

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

17.15Wh1Maker spec sheet (PDF)regard.ru/api/site/files/goodspdf/download/11332Read 16 October 2026Sheet says Li-ion 17.15 Wh. The Fnac lab and an Amazon-based retailer listing give 17.14 Wh. 3.63 V times 4722 mAh is 17.14 Wh.

22.5Wh2Maker product pagesupport.logi.com/hc/en-us/articles/15737920299287-Specification-UE-EPICBOOMRead 8 October 2026Built-in Li-ion rechargeable battery 22.5 Wh. No pack voltage or mAh inferred.

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.

4,722mAh1Maker spec sheet (PDF)regard.ru/api/site/files/goodspdf/download/11332Read 16 October 2026Published as equivalent to 3.63 V / 4722 mAh.

Not available

Nominal battery voltage

3.63V1Maker spec sheet (PDF)regard.ru/api/site/files/goodspdf/download/11332Read 16 October 2026Published as equivalent to 3.63 V / 4722 mAh.

Not available

Battery chemistry

Lithium-ion1Maker spec sheet (PDF)regard.ru/api/site/files/goodspdf/download/11332Read 16 October 2026Li-ion.

Lithium-ion1Maker product pageultimateears.com/en-us/shop/p/epicboom-bluetoothRead 8 October 2026

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

Yes3Press releasenews.harmankardon.com/en-GB/245491-harman-kardon-onyx-studio-9-combines-timeless-design-with-innovative-new-featuresRead 16 October 2026Press release lists a consumer replaceable battery. The replacement method is not described.

Not available

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

4h1Maker spec sheet (PDF)regard.ru/api/site/files/goodspdf/download/11332Read 16 October 20264 hours. The speaker charges from its AC power cable.

3h2Maker product pagesupport.logi.com/hc/en-us/articles/15737920299287-Specification-UE-EPICBOOMRead 8 October 2026About three hours empty to full with USB PD charger rated 15 W or above. Does not establish maximum speaker input power.

Quick charge duration

Not available

Not available

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

Not available

Not available

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

100-240 V AC, 50/60 Hz1Maker spec sheet (PDF)regard.ru/api/site/files/goodspdf/download/11332Read 16 October 2026Power supply 100-240 V AC, 50/60 Hz. No input current is published.

Not available

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

Yes2Maker product pagesupport.logi.com/hc/en-us/articles/15737920299287-Specification-UE-EPICBOOMRead 8 October 2026Maker explicitly specifies PD charging adapter, 15 W or above. Recommended adapter voltage list is not treated as speaker input.

Charges other devices

Yes1Maker spec sheet (PDF)regard.ru/api/site/files/goodspdf/download/11332Read 16 October 2026The USB charging port recharges a mobile device. Rating 5 V / 2.1 A (max). No watt figure is stored.2Owner's manualelmir.ua/response/product-instruction.phpRead 16 October 2026Powerbank section. The charging cable is not included.

Not available

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

Not available

Not available

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

Not available

Not available

Durability

5 of 5 differ

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

Not available

IP674Press releasenews.logitech.com/press-releases/news-details/2023/New-EPICBOOM-Speaker-Launches-with-Fresh-Portable-Design-and-Huge-360-Sound/default.aspxRead 8 October 2026

Floats

Not available

Yes4Press releasenews.logitech.com/press-releases/news-details/2023/New-EPICBOOM-Speaker-Launches-with-Fresh-Portable-Design-and-Huge-360-Sound/default.aspxRead 8 October 2026

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

Not available

Yes5Reviewrtings.com/speaker/reviews/ultimate-ears/epicboomRead 8 October 2026

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

Not available

1m5Reviewrtings.com/speaker/reviews/ultimate-ears/epicboomRead 8 October 2026Public Outdoors verdict attributes one-meter drop/fall tolerance to the maker. Surface and test method not stated.

Carry featuresiPublished handles, straps, carabiners or wheels.

Integrated handle1Maker spec sheet (PDF)regard.ru/api/site/files/goodspdf/download/11332Read 16 October 2026Integrated handle, made with 90% recycled aluminum.

Built-in strap5Reviewrtings.com/speaker/reviews/ultimate-ears/epicboomRead 8 October 2026

Measured

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

11.65h6Measurementleclaireur.fnac.com/test/589784-test-labo-harman-kardon-onyx-studio-9Read 16 October 2026Labo Fnac measured 11 h 39 min on average over two measurements at 70 dB at 50 cm from the speaker. This is far above the 8 hour claim because the test volume is low. Review published 18 April 2025.

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

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

63Hz6Measurementleclaireur.fnac.com/test/589784-test-labo-harman-kardon-onyx-studio-9Read 16 October 2026Lab says the bandwidth covers 63 Hz to 20 kHz. Anechoic chamber, Bluetooth source, no audio profiles or settings active. The level threshold is not stated.

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

20kHz6Measurementleclaireur.fnac.com/test/589784-test-labo-harman-kardon-onyx-studio-9Read 16 October 2026Lab says the bandwidth covers 63 Hz to 20 kHz. The level threshold is not stated.

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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

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

Not available

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Dimensions and weight

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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.

Width289.2Height287.5Depth130mm(11.4 × 11.3 × 5.1 in)1Maker spec sheet (PDF)regard.ru/api/site/files/goodspdf/download/11332Read 16 October 2026Product dimensions are listed as width x height x depth: 289.2 x 287.5 x 130 mm. Package is 312 x 322 x 172 mm.

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

3,360g(7.4 lb)1Maker spec sheet (PDF)regard.ru/api/site/files/goodspdf/download/11332Read 16 October 2026Net weight 3.36 kg and gross weight 4.2 kg. Swiss and French retailers list the speaker at 3.33 kg and the Fnac lab says 3.3 kg. Package weight is 4.2 kg.

1,979g(4.4 lb)1Maker product pageultimateears.com/en-us/shop/p/epicboom-bluetoothRead 8 October 2026

Body materials

Aluminum frame, Fabric, Silicone buttons1Maker spec sheet (PDF)regard.ru/api/site/files/goodspdf/download/11332Read 16 October 2026Integrated aluminum frame, fabric and silicone buttons on top. The handle is made with 90% recycled aluminum.

Post-consumer recycled plastic, Recycled polyester fabric4Press releasenews.logitech.com/press-releases/news-details/2023/New-EPICBOOM-Speaker-Launches-with-Fresh-Portable-Design-and-Huge-360-Sound/default.aspxRead 8 October 2026Fabric 100% PCR polyester. Plastic components minimum 59% PCR. Packaging excluded.

Certifications

None of 1 known

FCC IDs

Not available

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Other certifications

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In the box

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In the box

Harman Kardon Onyx Studio 9, Power cable, Quick start guide, Safety sheet, Warranty card1Maker spec sheet (PDF)regard.ru/api/site/files/goodspdf/download/11332Read 16 October 2026Box list: speaker, power cable, quick start guide, safety sheet and warranty card. The audio cable is not included.

EPICBOOM, Quick start guide (printed inside box)1Maker product pageultimateears.com/en-us/shop/p/epicboom-bluetoothRead 8 October 2026Current US product-page package contents. Maker support says USB-C cable included while product page says not included. Cable is omitted pending package clarification.

Links

Not compared

Product page

Not available

www.ultimateears.com/en-us/shop/p/epicboom-bluetooth1Maker product pageultimateears.com/en-us/shop/p/epicboom-bluetoothRead 8 October 2026

Spec sheet

www.regard.ru/api/site/files/goodspdf/download/113321Maker spec sheet (PDF)regard.ru/api/site/files/goodspdf/download/11332Read 16 October 2026

support.logi.com/hc/en-us/articles/15737920299287-Specification-UE-EPICBOOM2Maker product pagesupport.logi.com/hc/en-us/articles/15737920299287-Specification-UE-EPICBOOMRead 8 October 2026

Manual

elmir.ua/response/product-instruction.php2Owner's manualelmir.ua/response/product-instruction.phpRead 16 October 2026Quick start guide in many languages, hosted by a retailer. No full owner's manual was found on a readable host.

support.logi.com/hc/en-us/articles/15737936632983-Getting-Started-UE-EPICBOOM3Owner's manualsupport.logi.com/hc/en-us/articles/15737936632983-Getting-Started-UE-EPICBOOMRead 8 October 2026Official EPICBOOM online getting-started manual.

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.

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Warranty

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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

2years1Maker product pageultimateears.com/en-us/shop/p/epicboom-bluetoothRead 8 October 2026US page embedded specs and compatibility: 2-Year Limited Hardware Warranty.

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