Soundcore Boom 2 Plus
By Soundcore · Portable Bluetooth Speakers · Audio & Electronics · More from Soundcore
- 140W max output (BassUp 2.0)
- 2+2 stereo: dual 50W woofers + dual 20W tweeters
- 20h battery life
- IPX7 waterproof and floatable
- Bluetooth 6 with Auracast
Price not listed
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Summary
A large, waterproof and floatable Bluetooth party speaker from Soundcore with a 140W max output, a 20-hour battery and app EQ. Check which hardware revision you get: Auracast only works on units built from the November 2025 update onward, and the full 140W needs BassUp 2.0 switched on.
Strengths
- 140W max output with BassUp 2.0, and enough bass to carry an outdoor party.
- IPX7 body that floats, so pool and beach use is realistic.
- 20-hour battery at moderate volume, with 30W USB-C charging and a 10W power-bank output.
- Full stereo from dual woofers and dual tweeters, a step up from the smaller Boom 2’s 2.1 channel.
- PartyCast 2.0 links up to 100 speakers, and the app’s 9-band EQ and light control are well liked.
- Strong value when it drops to $100–$155 in owner reports.
Weaknesses
- Directivity is poor; sound is two-dimensional, so instruments and voices lose placement.
- Mid and treble detail is thin, with a grainy, congested midrange and smeared treble in lab listening.
- Out-of-box tuning is boomy and hollow, and owners say you need the app EQ to fix it.
- One owner reports distortion and overmatched bass above 50–60% volume.
- Heavy at 8.38 lb, which gets tiring on a long carry.
- The 140W figure and the long battery both depend on BassUp and lower volume.
Verified specifications
| Model | A3134. |
|---|---|
| Output | 140W max with BassUp 2.0; 100W standard. |
| Drivers | dual 50W woofers (4.5 in / 11 cm), dual 20W tweeters (0.75 in / 2 cm silk dome) and 2 passive radiators. |
| Frequency response | 40 Hz to 20 kHz. |
| Battery | 20 hours rated (50% volume, BassUp and lights off); 7500 mAh at 7.3V. |
| Charging | 30W USB-C, full in about 3 hours; 10W USB charge-out. |
| Waterproof | IPX7 (1 m for 30 minutes); floats. |
| Bluetooth | 5.3 with SBC and AAC; 3.5 mm AUX-in; range 100 m / 328 ft. |
| Multi-speaker | PartyCast 2.0 up to 100 speakers; TWS stereo; Auracast on units from the November 2025 hardware update onward. |
| App | 9-band Pro EQ, 4 presets and light-show control. |
| Light show | beat-synced RGB, 8 presets. |
| Colors | Phantom Black, Adventure Green and Explorer Blue. |
| Max SPL | 103 dB. |
| Dimensions | 17.4 × 5.94 × 8.98 in (442 × 151 × 228 mm). |
| Weight | 8.38 lb (3.8 kg). |
| In the box | speaker, USB-C to USB-C cable (23.6 in), detachable shoulder strap and quick-start guide. |
| Warranty | 18 months. |
Full research notes and sources
Which model this is
This page covers the Soundcore Boom 2 Plus, model A3134, the larger 140W sibling of the 80W Boom 2 (model A3138). Don’t confuse it with the original Soundcore Boom or the Motion Boom Plus.
The US listing is ASIN B0CZ7DY692.
Bass, output and the BassUp switch
Output is 140W only with BassUp 2.0 engaged; switch it off and the speaker runs at 100W, which The Gadgeteer described as basically underclocked. Bass is the headline: dual 50W woofers, dual 20W tweeters and 2 passive radiators, with the low end reaching 40 Hz. Reviewers split on refinement. PCMag and SoundGuys call it loud and fun, while RTINGS says the bass is good but directivity is disappointing and mid and treble detail is missing, and Consumer Reports describes a grainy, sibilant midrange and smeared treble. Owners on Reddit say the out-of-box sound is boomy and hollow and needs the app’s EQ, and one reports distortion above 50–60% volume.
Battery, charging and waterproofing
Charging is 30W over USB-C and takes about 3 hours, and the speaker can pass 10W out to a phone.
Multi-speaker and the app
PartyCast 2.0 links up to 100 Soundcore speakers, and two units can pair in TWS stereo. Auracast only works on hardware built from the November 2025 update onward, so older stock cannot join an Auracast group, and PartyCast 2.0 is Soundcore’s own protocol that won’t talk to other brands. The app adds a 9-band Pro EQ, 4 presets and light-show control, and the beat-synced RGB has 8 presets.
Is it worth it?
It launched at $249.99 in May 2024, Consumer Reports listed it from $179.99 in July 2025, and CNET put it around $220 in October 2024; owners report paying $100–$155 on sale. Below $150 it is strong value, $151–$200 is fair, and above $200 it only makes sense if you want the Soundcore ecosystem. RTINGS recommends the JBL Xtreme 4 for outdoor use, citing better directivity, IP67 sealing and a 27-hour battery.
Sources
Manufacturer:
- Boom 2 Plus outdoor bass speaker (Soundcore)
- Boom 2 vs Boom 2 Plus (Soundcore blog)
- Boom 2 Plus product page (Soundcore)
- Boom 2 Plus service page (Soundcore)
Independent reviews:
Owner reports:
- Boom 2 Plus verdict (r/soundcore)
- Boom 2 Plus value thread (r/Bluetooth_Speakers)
- Boom 2 Plus slight disappointment (r/soundcore)
Parts and stores:
