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Harman Kardon Onyx Studio 9 vs soundcore Boom 2 Plus

A

Product A: Harman Kardon

Onyx Studio 9

54 of 96 known

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B

Product B: soundcore

Boom 2 Plus

51 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

Bsoundcore Boom 2 Plus

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.

Not available

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.

A3134, A3134012, A3134062, A31340327Maker product pageus.soundcore.com/products/a3134-boom2-plus-outdoor-bass-speaker.jsRead 15 October 2026Public store feed lists SKUs A3134012 (Phantom Black), A3134062 (Adventure Green) and A3134032 (Explorer Blue). The same SKUs now cover a 2025 hardware revision, which is not described here.

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.

194644038922, 194644038885, 1946440389607Maker product pageus.soundcore.com/products/a3134-boom2-plus-outdoor-bass-speaker.jsRead 15 October 2026Feed barcodes per color SKU. The 2-pack bundle SKUs have no barcode.

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.

14 May 20241Press releaseen.anker-in.com/posts/soundcore-intros-flagship-boom-2-plus-with-enhanced-power-and-booming-bass-for-summer-adventuresRead 15 October 2026Release dated 14 May 2024.

Status

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

Available7Maker product pageus.soundcore.com/products/a3134-boom2-plus-outdoor-bass-speaker.jsRead 15 October 2026Feed shows every variant available on 2026-10-15. The page text also shows a sold out label.

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.

$249.991Press releaseen.anker-in.com/posts/soundcore-intros-flagship-boom-2-plus-with-enhanced-power-and-booming-bass-for-summer-adventuresRead 15 October 2026Release says $249.99 in the US. Excludes 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.

US, GB1Press releaseen.anker-in.com/posts/soundcore-intros-flagship-boom-2-plus-with-enhanced-power-and-booming-bass-for-summer-adventuresRead 15 October 2026Release says available in the US on Amazon, soundcore and other retail partners. The UK is from TechRadar and Tom's Guide.9Reviewtechradar.com/audio/wireless-bluetooth-speakers/anker-soundcore-boom-2-plus-reviewRead 15 October 2026List price $249.99 / £199.99 / AU$359.99. Tom's Guide says it is sold by Amazon UK for 199 GBP.

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.

Phantom Black, Adventure Green, Explorer Blue1Press releaseen.anker-in.com/posts/soundcore-intros-flagship-boom-2-plus-with-enhanced-power-and-booming-bass-for-summer-adventuresRead 15 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.

Portable6Maker product pageus.soundcore.com/products/a3134-boom2-plus-outdoor-bass-speakerRead 15 October 2026The maker sells it as an outdoor bass Bluetooth speaker.

Audio

11 of 18 differ

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.

Stereo6Maker product pageus.soundcore.com/products/a3134-boom2-plus-outdoor-bass-speakerRead 15 October 2026Page says 2+2 Stereo Clarity with dual woofers and dual tweeters.

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.

Bsoundcore Boom 2 Plus

Driver type	Count	Diameter (mm)
Woofer	2	114.3
Tweeter	2	19.05

Source1Press releaseen.anker-in.com/posts/soundcore-intros-flagship-boom-2-plus-with-enhanced-power-and-booming-bass-for-summer-adventuresRead 15 October 2026Release says two 4.5-inch woofers and two 1-inch tweeters. The user guide specification table says tweeter 0.75 inch x 2, which is stored because the manual outranks the release. Per-driver power is not stored. The 35 W and 15 W normal and 50 W and 20 W BassUp figures do not say whether they are continuous, RMS or peak.4Owner's manualservice.soundcore.com/article-description/soundcore-Boom-2-Plus-User-Guide-A3134Read 15 October 2026Specifications say Woofer 4.5 inch x 2, 50W and Tweeter 0.75 inch x 2, 20W. 4.5 in is 114.3 mm and 0.75 in is 19.05 mm.

Passive radiatorsiPassive, unpowered bass radiators. Excludes powered drivers.

Not available

21Press releaseen.anker-in.com/posts/soundcore-intros-flagship-boom-2-plus-with-enhanced-power-and-booming-bass-for-summer-adventuresRead 15 October 2026Release says a pair of passive radiators, two symmetrical radiators with the light show.

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

100W1Press releaseen.anker-in.com/posts/soundcore-intros-flagship-boom-2-plus-with-enhanced-power-and-booming-bass-for-summer-adventuresRead 15 October 2026Release says 100W of power, increased to 140W with BassUp on. No continuous, RMS or peak basis is stated, so rated and peak fields are left out.2Maker product pageservice.soundcore.com/article-description/soundcore-Boom-2-Plus-FAQRead 15 October 2026FAQ says 100W as standard, up to 140W in BassUp 2.0 mode.

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.

40Hz4Owner's manualservice.soundcore.com/article-description/soundcore-Boom-2-Plus-User-Guide-A3134Read 15 October 2026Specifications say Frequency Response 40Hz-20kHz. No tolerance or mode is stated.

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.

20kHz4Owner's manualservice.soundcore.com/article-description/soundcore-Boom-2-Plus-User-Guide-A3134Read 15 October 2026Specifications say 40Hz-20kHz.

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.

Yes4Owner's manualservice.soundcore.com/article-description/soundcore-Boom-2-Plus-User-Guide-A3134Read 15 October 2026App section lists preset EQ settings, and a maker help article describes a Custom EQ with an 80 Hz band of plus or minus 6 dB.

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.

Not available

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.

soundcore Signature, Voice, Treble Boost, Balance, BassUp 2.04Owner's manualservice.soundcore.com/article-description/soundcore-Boom-2-Plus-User-Guide-A3134Read 15 October 2026App section lists the EQ presets soundcore Signature, Voice, Treble Boost and Balance. BassUp 2.0 has its own button.

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.

Yes1Press releaseen.anker-in.com/posts/soundcore-intros-flagship-boom-2-plus-with-enhanced-power-and-booming-bass-for-summer-adventuresRead 15 October 2026Release says the TWS button connects a pair of Boom 2 Plus for true stereo, separating left and right channels.2Maker product pageservice.soundcore.com/article-description/soundcore-Boom-2-Plus-FAQRead 15 October 2026FAQ says TWS pairs two speakers, the main speaker as left channel and the second as right channel.

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.

True Wireless Stereo (TWS), PartyCast 2.01Press releaseen.anker-in.com/posts/soundcore-intros-flagship-boom-2-plus-with-enhanced-power-and-booming-bass-for-summer-adventuresRead 15 October 2026Release says PartyCast 2.0 connects over 100 PartyCast-enabled soundcore speakers. The TWS button pairs two speakers for stereo.

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

1002Maker product pageservice.soundcore.com/article-description/soundcore-Boom-2-Plus-FAQRead 15 October 2026FAQ says PartyCast 2.0 connects up to 100+ compatible speakers. The user guide and quick start guide say up to 100, which is stored.

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

8 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

Yes2Maker product pageservice.soundcore.com/article-description/soundcore-Boom-2-Plus-FAQRead 15 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.

5.32Maker product pageservice.soundcore.com/article-description/soundcore-Boom-2-Plus-FAQRead 15 October 2026FAQ says Bluetooth 5.3. The 2024 hardware is the reference. A newer hardware revision uses Bluetooth 6.0 (see the Bluetooth FAQ and the current user guide).

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

Not available

SBC, AAC2Maker product pageservice.soundcore.com/article-description/soundcore-Boom-2-Plus-FAQRead 15 October 2026FAQ says SBC and MPEG-2 AAC LC.

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.

Not available

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.

No3Maker product pageservice.soundcore.com/article-description/soundcore-Boom-2-Plus-Bluetooth-FAQRead 15 October 2026Bluetooth FAQ says the hardware was upgraded to support Auracast and that the new Auracast version cannot pair with older PartyCast devices. Only the older PartyCast hardware is the reference here, so Auracast is false for this row. A later revision with Auracast, Bluetooth 6.0 and a C in the seventh serial digit is not described by this row.

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.

Not available

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

100m4Owner's manualservice.soundcore.com/article-description/soundcore-Boom-2-Plus-User-Guide-A3134Read 15 October 2026Specifications say Bluetooth Range 100m.

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.

Not available

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.

Bsoundcore Boom 2 Plus

Connector	Count	Role
USB-C	1	Charging input and charge output to other devices
3.5 mm audio	1	AUX audio input

Source2Maker product pageservice.soundcore.com/article-description/soundcore-Boom-2-Plus-FAQRead 15 October 2026FAQ says the USB-C port on the back charges other devices, and there is an AUX jack.

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.

Yes8Reviewsoundguys.com/anker-soundcore-boom-2-plus-review-115847Read 15 October 2026Review says calls work through the built-in microphone with decent clarity.

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, TWS pairing, Volume down, Volume up, Play/pause, Next track, Previous track, Answer/end call, Reject call, Light show, PartyCast pairing, BassUp 2.04Owner's manualservice.soundcore.com/article-description/soundcore-Boom-2-Plus-User-Guide-A3134Read 15 October 2026Button Controls and At a Glance pages. Play/pause, next and previous track presses are listed there. Call answer and reject are from SoundGuys.8Reviewsoundguys.com/anker-soundcore-boom-2-plus-review-115847Read 15 October 2026Button table shows play/pause also answers and ends calls and a long press rejects a call.

Companion app

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

soundcore4Owner's manualservice.soundcore.com/article-description/soundcore-Boom-2-Plus-User-Guide-A3134Read 15 October 2026The guide says to download the soundcore app.

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.

Android, iOS8Reviewsoundguys.com/anker-soundcore-boom-2-plus-review-115847Read 15 October 2026Review covers the Soundcore app. Tom's Guide lists iOS and Android compatibility.10Reviewtomsguide.com/audio/bluetooth-speakers/soundcore-boom-2-plus-reviewRead 15 October 2026Spec table lists compatibility iOS and Android.

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.

Yes2Maker product pageservice.soundcore.com/article-description/soundcore-Boom-2-Plus-FAQRead 15 October 2026FAQ explains updating firmware in the soundcore app.

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

Not available

Yes1Press releaseen.anker-in.com/posts/soundcore-intros-flagship-boom-2-plus-with-enhanced-power-and-booming-bass-for-summer-adventuresRead 15 October 2026Release says the passive radiators carry a light show with eight presets and custom colors.

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

11 of 17 differ

Built-in battery

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

Yes1Press releaseen.anker-in.com/posts/soundcore-intros-flagship-boom-2-plus-with-enhanced-power-and-booming-bass-for-summer-adventuresRead 15 October 2026Release says a 7500 mAh/7.3V built-in 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.

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.

20h1Press releaseen.anker-in.com/posts/soundcore-intros-flagship-boom-2-plus-with-enhanced-power-and-booming-bass-for-summer-adventuresRead 15 October 2026Up to 20 hours at 50 percent volume with BassUp and light effects off.

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.

Not available

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.

7,500mAh1Press releaseen.anker-in.com/posts/soundcore-intros-flagship-boom-2-plus-with-enhanced-power-and-booming-bass-for-summer-adventuresRead 15 October 2026Release says a 7500 mAh/7.3V built-in battery. No watt-hour figure is published.

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.

7.3V1Press releaseen.anker-in.com/posts/soundcore-intros-flagship-boom-2-plus-with-enhanced-power-and-booming-bass-for-summer-adventuresRead 15 October 2026Release says 7500 mAh/7.3V.

Battery chemistry

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

Not available

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 pageservice.soundcore.com/article-description/soundcore-Boom-2-Plus-FAQRead 15 October 2026FAQ says around 3 hours with a certified 30W wall charger.

Quick charge duration

Not available

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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.

5 V 3 A, 9 V 3 A, 15 V 2 A, 20 V 1.5 A4Owner's manualservice.soundcore.com/article-description/soundcore-Boom-2-Plus-User-Guide-A3134Read 15 October 2026Specifications say Charge Input 5V 3A, 9V 3A, 15V 2A, 20V 1.5A.

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

Not available

30W4Owner's manualservice.soundcore.com/article-description/soundcore-Boom-2-Plus-User-Guide-A3134Read 15 October 2026The listed profiles top out at 20 V x 1.5 A. The guide lists a 30W max adapter, and the maker page says a 30W charger fully charges it in 3 hours.

USB Power Delivery charging

Not available

Yes2Maker product pageservice.soundcore.com/article-description/soundcore-Boom-2-Plus-FAQRead 15 October 2026FAQ says Boom 2 Plus supports Power Delivery fast charging.

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.

Yes2Maker product pageservice.soundcore.com/article-description/soundcore-Boom-2-Plus-FAQRead 15 October 2026FAQ says other devices can be charged through the USB-C port on the back.

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

Not available

10W2Maker product pageservice.soundcore.com/article-description/soundcore-Boom-2-Plus-FAQRead 15 October 2026FAQ says a 10W (5V/2A) charging output.

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

Not available

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Durability

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

Not available

IPX71Press releaseen.anker-in.com/posts/soundcore-intros-flagship-boom-2-plus-with-enhanced-power-and-booming-bass-for-summer-adventuresRead 15 October 2026Release says IPX7 waterproof certification. The maker page and TechRadar say no dust rating.

Floats

Not available

Yes1Press releaseen.anker-in.com/posts/soundcore-intros-flagship-boom-2-plus-with-enhanced-power-and-booming-bass-for-summer-adventuresRead 15 October 2026Release says it can float on water.

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

Not available

Not available

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

Not available

Not available

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 handle, Removable carry strap1Press releaseen.anker-in.com/posts/soundcore-intros-flagship-boom-2-plus-with-enhanced-power-and-booming-bass-for-summer-adventuresRead 15 October 2026Release says a built-in handle and a strap. SoundGuys calls the strap removable.8Reviewsoundguys.com/anker-soundcore-boom-2-plus-review-115847Read 15 October 2026Review says a massive handle and a removable carrying strap.

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.

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.

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.

Not available

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.

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.

Not available

Not available

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.

Width442mm9Reviewtechradar.com/audio/wireless-bluetooth-speakers/anker-soundcore-boom-2-plus-reviewRead 15 October 2026Spec table says 17.4 x 5.9 x 9 inches / 442 x 150.9 x 228.1mm with no axis labels. SoundGuys and Tom's Guide give the same numbers. Only the width of 442 mm is stored, since it is the long axis of the boombox. The 150.9 and 228.1 mm axes are not named.

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.

3,800g(8.4 lb)8Reviewsoundguys.com/anker-soundcore-boom-2-plus-review-115847Read 15 October 2026Review spec table says 3.8kg. TechRadar says 3.8 kg and The Gadgeteer 8.38 lb.

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.

Plastic housing, Aluminum grille8Reviewsoundguys.com/anker-soundcore-boom-2-plus-review-115847Read 15 October 2026Review says a robust plastic housing and an aluminum grill.

Certifications

None of 1 known

FCC IDs

Not available

Not available

Other certifications

Not available

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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.

soundcore Boom 2 Plus speaker, 60 cm USB-C to USB-C cable, Quick Start Guide, Carry strap2Maker product pageservice.soundcore.com/article-description/soundcore-Boom-2-Plus-FAQRead 15 October 2026FAQ lists the speaker, a 60 cm USB-C to C cable and the quick start guide, and says a wall charger is not included. The carry strap is from the press release photos, TechRadar and The Gadgeteer.

Links

Not compared

Product page

Not available

us.soundcore.com/products/a3134-boom2-plus-outdoor-bass-speaker6Maker product pageus.soundcore.com/products/a3134-boom2-plus-outdoor-bass-speakerRead 15 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

Not available

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.

service.soundcore.com/article-description/soundcore-Boom-2-Plus-User-Guide-A31344Owner's manualservice.soundcore.com/article-description/soundcore-Boom-2-Plus-User-Guide-A3134Read 15 October 2026The linked 5-page PDF is the current guide. It describes the 2025 revision with Bluetooth 6.0 and Auracast. Its non-Bluetooth specifications match the 2024 hardware. A Polish copy of the 2024 guide on manuals.plus shows the same table with Bluetooth 5.3.

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

Not available

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

1.5years5Maker spec sheet (PDF)lp.ankerjapan.com/hubfs/aoos/manual/A3134QSG.pdfRead 15 October 2026Version V01 of the 2024 quick start guide says 18-month limited warranty. The guide is multi-market, so no market is named. Stored as 1.5 years.

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