Wireless speakers / Compare

JBL Boombox 4 vs Tribit StormBox Lava

A

Product A: JBL

Boombox 4

58 of 96 known

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B

Product B: Tribit

StormBox Lava

50 of 96 known

Change Tribit StormBox Lava

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All 96 fields

Every value links to where we found it.

Only differences

AJBL Boombox 4

BTribit StormBox Lava

General

5 of 8 differ

Series

Not available

StormBox1Maker product pagetribit.com/products/tribit-stormbox-lava-portable-bluetooth-speakerRead 15 October 2026The page title and marketing name StormBox Lava belong to Tribit's StormBox range, which also holds the StormBox Max.

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

JBLBOOMBOX4WHTAM1Maker product pagejbl.com/BOOMBOX-4.htmlRead 8 October 2026

BTS51, E51-2591N-01, E51-2591N-022Maker product pagetribit.com/products/tribit-stormbox-lava-portable-bluetooth-speaker.jsRead 15 October 2026Public store feed lists SKUs E51-2591N-01 (Black) and E51-2591N-02 (Gray). BTS51 is the radio model in the manual.

GTIN / EAN

Not available

Not available

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

3 September 20254Press releasenews.harman.com/releases/jbl-boombox-4-massive-power-iconic-bass-and-a-lighter-buildRead 8 October 2026

Not available

Status

Available1Maker product pagejbl.com/BOOMBOX-4.htmlRead 8 October 2026

Available1Maker product pagetribit.com/products/tribit-stormbox-lava-portable-bluetooth-speakerRead 15 October 2026US store shows both colors in stock on 2026-10-15.

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.

$549.954Press releasenews.harman.com/releases/jbl-boombox-4-massive-power-iconic-bass-and-a-lighter-buildRead 8 October 2026US launch MSRP. Tax excluded.

$129.994Press releasekyodonewsprwire.jp/release/202503195971Read 15 October 2026PR Newswire release of 19 March 2025 says the speaker is available now at $129.99. The store has since moved to 139.99 USD. The 30 percent launch code is not a list price. The Gray option arrived later, so only the Black row carries this price.

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.

Not available

US, EU, GB5Press articlet3.com/tech/bluetooth-speakers/tribit-wants-you-to-fall-in-lava-with-its-powerful-portable-speakerRead 15 October 2026T3 of 19 March 2025 gives the RRP as 129.99 GBP and says it is sold by Tribit UK. US and EU stores both list the SKUs: the EU store feed lists both colors in euro.6Maker product pageeu.tribit.com/products/tribit-stormbox-lava-portable-bluetooth-speaker.jsRead 15 October 2026EU store sells both SKUs. No EU launch price is stored because the feed shows current store prices only.

ColoursiThe maker's own colour names

Black, Blue, Squad, White1Maker product pagejbl.com/BOOMBOX-4.htmlRead 8 October 2026Product selector includes Black, Blue, Squad and White.

Black, Gray1Maker product pagetribit.com/products/tribit-stormbox-lava-portable-bluetooth-speakerRead 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 product pagejbl.com/BOOMBOX-4.htmlRead 8 October 2026

Portable1Maker product pagetribit.com/products/tribit-stormbox-lava-portable-bluetooth-speakerRead 15 October 2026

Audio

12 of 18 differ

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

Stereo6Reviewsoundguys.com/jbl-boombox-4-review-lighter-louder-and-better-than-the-boombox-3-149309Read 8 October 2026

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.

AJBL Boombox 4

Driver type	Count	Diameter (mm)	Rated power per driver (W)
Woofer	2	123	60
Tweeter	2	20	40

Source2Maker spec sheet (PDF)support.jbl.com/on/demandware.static/-/Sites-masterCatalog_Harman/default/dw5c227499/pdfs/JBL_Boombox_4_Specsheet_EN.pdfRead 8 October 2026Page 2. Battery mode is 60 W per woofer and 40 W per tweeter. AC mode increases each woofer to 65 W. All per-driver output figures are RMS ratings.

BTribit StormBox Lava

Driver type	Count
Neodymium magnet woofer	2
Silk dome tweeter	2

Source1Maker product pagetribit.com/products/tribit-stormbox-lava-portable-bluetooth-speakerRead 15 October 2026Technical Specifications say Output Power 80W (2*30W-Woofer+2*10W-Tweeter). The page says dual neodymium magnet woofers and dual silk dome tweeters. No driver diameters are published. Per-driver power is not stored because the page does not say whether it is continuous, RMS or peak.

Passive radiatorsiPassive, unpowered bass radiators. Excludes powered drivers.

32Maker spec sheet (PDF)support.jbl.com/on/demandware.static/-/Sites-masterCatalog_Harman/default/dw5c227499/pdfs/JBL_Boombox_4_Specsheet_EN.pdfRead 8 October 2026

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.

200W5Press releasenews-latam.harman.com/pt/releases/jbl-boombox-4-potencia-massiva-graves-iconicos-e-estrutura-mais-leveRead 8 October 2026Maker launch release explicitly publishes 200 W RMS on battery.

Not available

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

210W5Press releasenews-latam.harman.com/pt/releases/jbl-boombox-4-potencia-massiva-graves-iconicos-e-estrutura-mais-leveRead 8 October 2026Maker launch release explicitly publishes 210 W RMS with AC power.

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

80W1Maker product pagetribit.com/products/tribit-stormbox-lava-portable-bluetooth-speakerRead 15 October 2026Spec table says Output Power 80W. No continuous, RMS or peak basis is stated, so rated and peak fields are left out.

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.

37Hz2Maker spec sheet (PDF)support.jbl.com/on/demandware.static/-/Sites-masterCatalog_Harman/default/dw5c227499/pdfs/JBL_Boombox_4_Specsheet_EN.pdfRead 8 October 2026TECH SPEC publishes this endpoint. No amplitude tolerance or operating-mode condition is stated.

43Hz1Maker product pagetribit.com/products/tribit-stormbox-lava-portable-bluetooth-speakerRead 15 October 2026Spec table says Frequency Response Range 43~20KHz. 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.

20kHz2Maker spec sheet (PDF)support.jbl.com/on/demandware.static/-/Sites-masterCatalog_Harman/default/dw5c227499/pdfs/JBL_Boombox_4_Specsheet_EN.pdfRead 8 October 2026TECH SPEC publishes this endpoint. No amplitude tolerance or operating-mode condition is stated.

20kHz1Maker product pagetribit.com/products/tribit-stormbox-lava-portable-bluetooth-speakerRead 15 October 2026Spec table says 43~20KHz.

Signal-to-noise ratio (claimed)

Not available

Not available

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

Yes6Reviewsoundguys.com/jbl-boombox-4-review-lighter-louder-and-better-than-the-boombox-3-149309Read 8 October 2026

Yes3Owner's manualcdn.shopify.com/s/files/1/0616/1838/9239/files/StormBox_Lava_User_Manual.pdfRead 15 October 2026App page says to download the TRIBIT app to adjust the EQ settings. SoundGuys and TechRadar describe the custom EQ.

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

76Reviewsoundguys.com/jbl-boombox-4-review-lighter-louder-and-better-than-the-boombox-3-149309Read 8 October 2026Seven-band custom EQ in JBL Portable v6.8.30. Tested firmware 25.29.10.

107Reviewsoundguys.com/tribit-stormbox-lava-review-xtreme4-vibes-without-the-jbl-price-141830Read 15 October 2026App section says a 10-band custom EQ. The review used firmware V1.5.5 and app V3.7.0. Maker firmware V2.0.0 later redesigned the custom EQ, so the band count may differ today.

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

Yes1Maker product pagejbl.com/BOOMBOX-4.htmlRead 8 October 2026AI Sound Boost analyzes the audio in real time and adapts output to reduce distortion.

Not available

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

Deep Bass, Punchy Bass, Playtime Boost4Press releasenews.harman.com/releases/jbl-boombox-4-massive-power-iconic-bass-and-a-lighter-buildRead 8 October 2026

XBass7Reviewsoundguys.com/tribit-stormbox-lava-review-xtreme4-vibes-without-the-jbl-price-141830Read 15 October 2026App section lists EQ presets including Xtra Bass. XBass is also a button on the speaker.

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

Yes1Maker product pagejbl.com/BOOMBOX-4.htmlRead 8 October 2026

Yes1Maker product pagetribit.com/products/tribit-stormbox-lava-portable-bluetooth-speakerRead 15 October 2026FAQ says two Lava speakers can be paired in stereo mode.

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 product pagejbl.com/BOOMBOX-4.htmlRead 8 October 2026

Stereo Mode (TWS), Party Mode3Owner's manualcdn.shopify.com/s/files/1/0616/1838/9239/files/StormBox_Lava_User_Manual.pdfRead 15 October 2026The manual has a Stereo Mode page (TWS button, speaker A left and speaker B right) and a Party Mode page (TWS button pressed twice).

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

1003Owner's manualcdn.shopify.com/s/files/1/0616/1838/9239/files/StormBox_Lava_User_Manual.pdfRead 15 October 2026Party Mode page says up to 100+ speakers can be connected at the same time. Stored as 100. Tribit's launch release and TechRadar say 160+, which does not match the manual.

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

9 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.

Yes6Reviewsoundguys.com/jbl-boombox-4-review-lighter-louder-and-better-than-the-boombox-3-149309Read 8 October 2026

Yes1Maker product pagetribit.com/products/tribit-stormbox-lava-portable-bluetooth-speakerRead 15 October 2026

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

5.42Maker spec sheet (PDF)support.jbl.com/on/demandware.static/-/Sites-masterCatalog_Harman/default/dw5c227499/pdfs/JBL_Boombox_4_Specsheet_EN.pdfRead 8 October 2026

5.41Maker product pagetribit.com/products/tribit-stormbox-lava-portable-bluetooth-speakerRead 15 October 2026

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

SBC, AAC, LC36Reviewsoundguys.com/jbl-boombox-4-review-lighter-louder-and-better-than-the-boombox-3-149309Read 8 October 2026How does it connect explicitly lists SBC, AAC and LC3.

SBC, AAC1Maker product pagetribit.com/products/tribit-stormbox-lava-portable-bluetooth-speakerRead 15 October 2026

Bluetooth profiles

A2DP 1.4, AVRCP 1.62Maker spec sheet (PDF)support.jbl.com/on/demandware.static/-/Sites-masterCatalog_Harman/default/dw5c227499/pdfs/JBL_Boombox_4_Specsheet_EN.pdfRead 8 October 2026

A2DP, AVRCP, HSP, HFP1Maker product pagetribit.com/products/tribit-stormbox-lava-portable-bluetooth-speakerRead 15 October 2026Spec table says A2DP, AVRCP, HSP, HFP.

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

Yes8Reviewrtings.com/speaker/reviews/jbl/boombox-4Read 8 October 2026Public Videos/Movies text explicitly describes Bluetooth LE Audio and LC3 on compatible Android sources. iOS uses the conventional codec path.

Not available

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

Yes1Maker product pagejbl.com/BOOMBOX-4.htmlRead 8 October 2026Links compatible JBL Auracast speakers. Stereo pairing uses two Boombox 4 speakers.

Not available

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

Yes9Reviewtechgearlab.com/reviews/audio/bluetooth-speaker/jbl-boombox-4Read 8 October 2026Specifications table explicitly confirms multipoint pairing. Device-count maximum is not stored.

Yes3Owner's manualcdn.shopify.com/s/files/1/0616/1838/9239/files/StormBox_Lava_User_Manual.pdfRead 15 October 202612-page multi-language manual with outlined text, read from page images and OCR. Page 4 says the speaker can connect to up to two Bluetooth devices at the same time.7Reviewsoundguys.com/tribit-stormbox-lava-review-xtreme4-vibes-without-the-jbl-price-141830Read 15 October 2026Connectivity section says it supports multipoint with two devices.

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

Not available

23Owner's manualcdn.shopify.com/s/files/1/0616/1838/9239/files/StormBox_Lava_User_Manual.pdfRead 15 October 2026Page 4 says up to two Bluetooth devices at the same time.

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

Not available

30m1Maker product pagetribit.com/products/tribit-stormbox-lava-portable-bluetooth-speakerRead 15 October 2026Spec table says Wireless Distance 120ft (>30m). Stored as 30 m, the published lower bound.

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

No8Reviewrtings.com/speaker/reviews/jbl/boombox-4Read 8 October 2026

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.

Yes1Maker product pagejbl.com/BOOMBOX-4.htmlRead 8 October 2026

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.

AJBL Boombox 4

Connector	Count	Role	Version
AC power	1	Mains power and battery charging	Not available
USB-C	1	Lossless digital audio input and power-bank output	USB 2.0

Source3Owner's manualjbl.com/on/demandware.static/-/Sites-masterCatalog_Harman/default/dwf536ac62/pdfs/PA_JBL_Boombox%204_QSG_Global_SOP_V8_Online.pdfRead 8 October 2026LOSSLESS AUDIO PLAYBACK panel identifies USB 2.0. USB-C is also used for power-bank output. Charging panel uses AC power.

BTribit StormBox Lava

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

Source1Maker product pagetribit.com/products/tribit-stormbox-lava-portable-bluetooth-speakerRead 15 October 2026Spec table lists AUX Input: Support. The USB-C input and USB-A output are from the manual and The Gadgeteer.3Owner's manualcdn.shopify.com/s/files/1/0616/1838/9239/files/StormBox_Lava_User_Manual.pdfRead 15 October 2026USB-A page shows the rear port panel and says the speaker charges other devices from the USB-A port. The Charging page shows the rear charging port. The manual also says to switch between Bluetooth and the audio cable with two quick presses of the Bluetooth button.10Reviewthe-gadgeteer.com/2025/04/15/tribit-stormbox-lava-bluetooth-speaker-review-bassheads-rejoiceRead 15 October 2026Review lists a USB-C input for charging, a USB-A output for charging other devices and a 3.5 mm AUX input, all under the rear cover.

Controls and software

7 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.

No6Reviewsoundguys.com/jbl-boombox-4-review-lighter-louder-and-better-than-the-boombox-3-149309Read 8 October 2026

Yes1Maker product pagetribit.com/products/tribit-stormbox-lava-portable-bluetooth-speakerRead 15 October 2026FAQ says the speaker has a built-in call microphone and supports hands-free calling.

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

Connected phone voice assistant3Owner's manualcdn.shopify.com/s/files/1/0616/1838/9239/files/StormBox_Lava_User_Manual.pdfRead 15 October 2026Controls page: press and hold the center button for 2 seconds for the voice assistant. SoundGuys says it opens the phone's assistant and there is no built-in Alexa or Google Assistant.

Controls

Power, Bluetooth pairing, Auracast linking, Volume up, Volume down, Play/pause, Next track, Previous track, Bass Boost3Owner's manualjbl.com/on/demandware.static/-/Sites-masterCatalog_Harman/default/dwf536ac62/pdfs/PA_JBL_Boombox%204_QSG_Global_SOP_V8_Online.pdfRead 8 October 2026

Power, Bluetooth pairing, Volume down, Volume up, Play/pause, Next track, Previous track, Answer/end call, Reject call, Voice assistant, XBass on/off, TWS and Party Mode3Owner's manualcdn.shopify.com/s/files/1/0616/1838/9239/files/StormBox_Lava_User_Manual.pdfRead 15 October 2026Controls page lists play/pause (x1), next track (x2), last track (x3), answer/end call (x1), reject call (2 s), voice assistant (2 s), volume down/up and XBass on/off. The top panel also has power, Bluetooth and TWS buttons.

Companion app

JBL Portable3Owner's manualjbl.com/on/demandware.static/-/Sites-masterCatalog_Harman/default/dwf536ac62/pdfs/PA_JBL_Boombox%204_QSG_Global_SOP_V8_Online.pdfRead 8 October 2026

TRIBIT app1Maker product pagetribit.com/products/tribit-stormbox-lava-portable-bluetooth-speakerRead 15 October 2026TRIBIT app, listed as Support in the spec table.

App platforms

Not available

iOS, Android1Maker product pagetribit.com/products/tribit-stormbox-lava-portable-bluetooth-speakerRead 15 October 2026FAQ says the TRIBIT app is available on iOS and Android.

User firmware updates

Yes3Owner's manualjbl.com/on/demandware.static/-/Sites-masterCatalog_Harman/default/dwf536ac62/pdfs/PA_JBL_Boombox%204_QSG_Global_SOP_V8_Online.pdfRead 8 October 2026APP section documents software upgrades through JBL Portable.

Yes1Maker product pagetribit.com/products/tribit-stormbox-lava-portable-bluetooth-speakerRead 15 October 2026FAQ says firmware updates are made in the TRIBIT app and need at least 50 percent battery.

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

Yes4Press releasenews.harman.com/releases/jbl-boombox-4-massive-power-iconic-bass-and-a-lighter-buildRead 8 October 2026LED horn logos on passive radiators pulse when Bass Boost is enabled.

No9Reviewtechradar.com/audio/wireless-bluetooth-speakers/tribit-stormbox-lava-reviewRead 15 October 2026Design section says it is a plain black speaker with no lights. The manual and product page name no lighting.

Lighting modes

Deep Bass: orange logo, Punchy Bass: white logo4Press releasenews.harman.com/releases/jbl-boombox-4-massive-power-iconic-bass-and-a-lighter-buildRead 8 October 2026Deep Bass illuminates logos orange. Punchy Bass illuminates them white.

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

12 of 17 differ

Built-in battery

Yes2Maker spec sheet (PDF)support.jbl.com/on/demandware.static/-/Sites-masterCatalog_Harman/default/dw5c227499/pdfs/JBL_Boombox_4_Specsheet_EN.pdfRead 8 October 2026

Yes3Owner's manualcdn.shopify.com/s/files/1/0616/1838/9239/files/StormBox_Lava_User_Manual.pdfRead 15 October 2026Safety precautions say the product has a built-in lithium 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.

28h2Maker spec sheet (PDF)support.jbl.com/on/demandware.static/-/Sites-masterCatalog_Harman/default/dw5c227499/pdfs/JBL_Boombox_4_Specsheet_EN.pdfRead 8 October 2026Up to 28 hours. Depends on volume and audio content.

24h1Maker product pagetribit.com/products/tribit-stormbox-lava-portable-bluetooth-speakerRead 15 October 2026Spec table says 24 Hours at 50% volume with XBass Off. This is normal playback with the bass boost off, so it is not stored as a battery extension figure.

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.

34h2Maker spec sheet (PDF)support.jbl.com/on/demandware.static/-/Sites-masterCatalog_Harman/default/dw5c227499/pdfs/JBL_Boombox_4_Specsheet_EN.pdfRead 8 October 202628 hours plus 6 hours with Playtime Boost gives 34 hours total in that mode.6Reviewsoundguys.com/jbl-boombox-4-review-lighter-louder-and-better-than-the-boombox-3-149309Read 8 October 2026Playtime Boost extends runtime by reducing bass. The normal maker runtime and extension-mode total are separate. The maker source supplies the total-hour claim.

Not available

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

99.02Wh2Maker spec sheet (PDF)support.jbl.com/on/demandware.static/-/Sites-masterCatalog_Harman/default/dw5c227499/pdfs/JBL_Boombox_4_Specsheet_EN.pdfRead 8 October 2026

43.2Wh1Maker product pagetribit.com/products/tribit-stormbox-lava-portable-bluetooth-speakerRead 15 October 2026Spec table says Battery 43.2Wh. No mAh or voltage is published.

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.

4,584mAh2Maker spec sheet (PDF)support.jbl.com/on/demandware.static/-/Sites-masterCatalog_Harman/default/dw5c227499/pdfs/JBL_Boombox_4_Specsheet_EN.pdfRead 8 October 2026

Not available

Nominal battery voltage

21.6V2Maker spec sheet (PDF)support.jbl.com/on/demandware.static/-/Sites-masterCatalog_Harman/default/dw5c227499/pdfs/JBL_Boombox_4_Specsheet_EN.pdfRead 8 October 2026

Not available

Battery chemistry

Lithium-ion2Maker spec sheet (PDF)support.jbl.com/on/demandware.static/-/Sites-masterCatalog_Harman/default/dw5c227499/pdfs/JBL_Boombox_4_Specsheet_EN.pdfRead 8 October 2026

Lithium3Owner's manualcdn.shopify.com/s/files/1/0616/1838/9239/files/StormBox_Lava_User_Manual.pdfRead 15 October 2026Safety precautions say the product has a built-in lithium battery. The type of lithium cell is not stated.

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

Yes1Maker product pagejbl.com/BOOMBOX-4.htmlRead 8 October 2026

Not available

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

3h2Maker spec sheet (PDF)support.jbl.com/on/demandware.static/-/Sites-masterCatalog_Harman/default/dw5c227499/pdfs/JBL_Boombox_4_Specsheet_EN.pdfRead 8 October 2026

5h1Maker product pagetribit.com/products/tribit-stormbox-lava-portable-bluetooth-speakerRead 15 October 2026Spec table says About 5 hours with 15W input. The charger is not included.

Quick charge duration

10min3Owner's manualjbl.com/on/demandware.static/-/Sites-masterCatalog_Harman/default/dwf536ac62/pdfs/PA_JBL_Boombox%204_QSG_Global_SOP_V8_Online.pdfRead 8 October 2026CHARGING panel: 10 minutes charging gives 2.5 hours playback.

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

2.5h3Owner's manualjbl.com/on/demandware.static/-/Sites-masterCatalog_Harman/default/dwf536ac62/pdfs/PA_JBL_Boombox%204_QSG_Global_SOP_V8_Online.pdfRead 8 October 2026CHARGING panel: 10 minutes charging gives 2.5 hours playback.

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

100-240 V AC, 50/60 Hz2Maker spec sheet (PDF)support.jbl.com/on/demandware.static/-/Sites-masterCatalog_Harman/default/dw5c227499/pdfs/JBL_Boombox_4_Specsheet_EN.pdfRead 8 October 2026

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

Not available

15W3Owner's manualcdn.shopify.com/s/files/1/0616/1838/9239/files/StormBox_Lava_User_Manual.pdfRead 15 October 2026Compliance note says the charger power must be between 2 W and 15 W to reach the maximum charging speed. A charger is not included.

USB Power Delivery charging

Not available

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Charges other devices

Yes1Maker product pagejbl.com/BOOMBOX-4.htmlRead 8 October 2026

Yes3Owner's manualcdn.shopify.com/s/files/1/0616/1838/9239/files/StormBox_Lava_User_Manual.pdfRead 15 October 2026Page 3 (To Charging Other Devices): use the USB-A port to charge other devices. It stops below 20 percent battery. No output wattage is published.

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

Not available

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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.

IP681Maker product pagejbl.com/BOOMBOX-4.htmlRead 8 October 2026

IP671Maker product pagetribit.com/products/tribit-stormbox-lava-portable-bluetooth-speakerRead 15 October 2026Spec table says IP67. The FAQ says it withstands immersion in up to 1 m of water for 30 minutes.

Floats

Not available

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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.

Not available

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Carry featuresiPublished handles, straps, carabiners or wheels.

Integrated carry handle6Reviewsoundguys.com/jbl-boombox-4-review-lighter-louder-and-better-than-the-boombox-3-149309Read 8 October 2026

Detachable shoulder strap, Detachable handle1Maker product pagetribit.com/products/tribit-stormbox-lava-portable-bluetooth-speakerRead 15 October 2026The page says it comes with dual straps of different lengths. The box photo on the same page shows a shoulder strap and a detachable handle.

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.

34.93h7Measurementsoundguys.com/jbl-boombox-4-review-lighter-louder-and-better-than-the-boombox-3-149309Read 8 October 202634 hours 56 minutes, converted to hours. Consistent music samples at 80 dB measured 1 m away. Deep Bass enabled. Firmware 25.29.10, JBL Portable v6.8.30. At this output level the speaker exceeds the maker runtime. Lighting state and Bluetooth codec are not stated.

24.99h8Measurementsoundguys.com/tribit-stormbox-lava-review-xtreme4-vibes-without-the-jbl-price-141830Read 15 October 2026SoundGuys battery test: music source at 80 dB measured 1 m away, 24 h 59 min 27 s, stored as 24.99 h. Firmware V1.5.5, app V3.7.0. XBass state and codec are not published, so the maker's XBass-off conditions are not confirmed.

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.

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.

Width506.4Height262.9Depth212.9mm(19.9 × 10.4 × 8.4 in)2Maker spec sheet (PDF)support.jbl.com/on/demandware.static/-/Sites-masterCatalog_Harman/default/dw5c227499/pdfs/JBL_Boombox_4_Specsheet_EN.pdfRead 8 October 2026Page 2 explicitly names width x height x depth.

Width310mm3Owner's manualcdn.shopify.com/s/files/1/0616/1838/9239/files/StormBox_Lava_User_Manual.pdfRead 15 October 2026Specification page says Size 310mm X 147mm X 152mm with no axis labels. Only width 310 mm is stored, since it is the long axis of the horizontal speaker. Sources disagree on whether 147 or 152 mm is the height, so height and depth are left out.

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

5,890g(13 lb)2Maker spec sheet (PDF)support.jbl.com/on/demandware.static/-/Sites-masterCatalog_Harman/default/dw5c227499/pdfs/JBL_Boombox_4_Specsheet_EN.pdfRead 8 October 2026

2,300g(5.1 lb)1Maker product pagetribit.com/products/tribit-stormbox-lava-portable-bluetooth-speakerRead 15 October 2026Spec table says 5.07 lbs, which equals the manual's 2300 g.3Owner's manualcdn.shopify.com/s/files/1/0616/1838/9239/files/StormBox_Lava_User_Manual.pdfRead 15 October 2026Specification page says Weight 2300g.

Body materials

Post-consumer recycled plastic, Recycled fabric, Plastic handle, Rubber bumpers1Maker product pagejbl.com/BOOMBOX-4.htmlRead 8 October 20266Reviewsoundguys.com/jbl-boombox-4-review-lighter-louder-and-better-than-the-boombox-3-149309Read 8 October 2026Review identifies plastic integrated handle and rubber bumpers. Maker supplies recycled-material facts.

Fabric exterior, Plastic end caps7Reviewsoundguys.com/tribit-stormbox-lava-review-xtreme4-vibes-without-the-jbl-price-141830Read 15 October 2026Design section says it is wrapped in a durable fabric and its end caps over the passive radiators are plastic.

Certifications

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FCC IDs

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Other certifications

Not available

CE (Radio Equipment Directive 2014/53/EU), UK Declaration of Conformity3Owner's manualcdn.shopify.com/s/files/1/0616/1838/9239/files/StormBox_Lava_User_Manual.pdfRead 15 October 2026Page 1 carries the EU declaration of conformity for the radio equipment type Portable Wireless Speaker BTS51 and a link to the UK Declaration of Conformity.

In the box

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In the box

JBL Boombox 4, AC power cord, Quick start guide, Safety sheet, Warranty card2Maker spec sheet (PDF)support.jbl.com/on/demandware.static/-/Sites-masterCatalog_Harman/default/dw5c227499/pdfs/JBL_Boombox_4_Specsheet_EN.pdfRead 8 October 2026Power cord plug and quantity vary by region.

StormBox Lava speaker, USB-A to USB-C charging cable, Shoulder strap, Detachable handle, User manual3Owner's manualcdn.shopify.com/s/files/1/0616/1838/9239/files/StormBox_Lava_User_Manual.pdfRead 15 October 2026Page 1 shows the speaker, strap, USB cable and a Charger not included mark. The product page box photo adds the detachable handle and the user manual.

Links

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Product page

www.jbl.com/BOOMBOX-4.html1Maker product pagejbl.com/BOOMBOX-4.htmlRead 8 October 2026

www.tribit.com/products/tribit-stormbox-lava-portable-bluetooth-speaker1Maker product pagetribit.com/products/tribit-stormbox-lava-portable-bluetooth-speakerRead 15 October 2026

Spec sheet

support.jbl.com/on/demandware.static/-/Sites-masterCatalog_Harman/default/dw5c227499/pdfs/JBL_Boombox_4_Specsheet_EN.pdf1Maker product pagejbl.com/BOOMBOX-4.htmlRead 8 October 2026

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Manual

www.jbl.com/on/demandware.static/-/Sites-masterCatalog_Harman/default/dwf536ac62/pdfs/PA_JBL_Boombox%204_QSG_Global_SOP_V8_Online.pdf1Maker product pagejbl.com/BOOMBOX-4.htmlRead 8 October 2026

cdn.shopify.com/s/files/1/0616/1838/9239/files/StormBox_Lava_User_Manual.pdf1Maker product pagetribit.com/products/tribit-stormbox-lava-portable-bluetooth-speakerRead 15 October 2026

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

1year3Owner's manualcdn.shopify.com/s/files/1/0616/1838/9239/files/StormBox_Lava_User_Manual.pdfRead 15 October 2026Safety precautions say the warranty period is 12 months. The manual is multi-market, so the market is not named.

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