Short answer: the Soundcore Boom 2. It ranks #10 of 77 large speakers by sound quality at $99.99; the Marshall Kilburn II ranks #36 and costs $279, which makes this an easy call rather than a real tradeoff.
What the Soundcore Boom 2 offers: Pretty deep bass for the size. Cool lights in the side passive radiators. For the best sound quality use Oluv’s EQ or Alan Ross’s EQ. With the stock tuning, this speaker would rank around #24, due to the boosted bass and rising treble. Watch for: Only a single midrange driver, so you only get stereo for the tweeters. Sound processing issues with inconsistent bass notes that disappear at low levels like the Soundcore Boom and Soundcore Boost, not great for listening at low levels. Quite bass heavy with BassUp turned on, I’d recommend turning it off. A little bit of a bright tuning in the treble, about +5db.
What the Marshall Kilburn II offers: 20W Class D amp + dual 8W tweeters. 20+ hour battery with quick-charge (20 min charges 3 hours of play). Rugged design with leather handle and reinforced corners, IPX2 rated. Thrives with rock music. Bluetooth 5.0 with 30ft range. Watch for: Boosted upper bass, not very detailed, not as deep bass as competitors, upper mids peak. Very low IPX2 water rating. AC charging
Buy the Soundcore Boom 2. It ranks higher for sound quality than the Marshall Kilburn II and costs less, so there is no real case for the other one.
There is a real gap in water resistance: the Soundcore Boom 2 at IPX7 (brief submersion) against the Marshall Kilburn II, which has IPX2 (light drips).
Specifications Side By Side
| Soundcore Boom 2 | Marshall Kilburn II | |
|---|---|---|
| Price | $99.99 | $279.00 |
| Ranked | #10 of 77 in Large Size Portable Bluetooth Speakers | #36 of 77 in Large Size Portable Bluetooth Speakers |
| App | Yes | No |
| Aux Input | No | Yes |
| Bass Extension (-10dB) | 47Hz | ~58Hz |
| Battery Life | 24 hours (Manufacturer specified) | 20 hours (Manufacturer specified) |
| Bluetooth Codecs | SBC | SBC |
| Built in Microphone | No | Yes |
| EQ | Yes | No |
| IP Rating | IPX7 | IPX2 |
| Bluetooth Latency | 125ms | - |
| Max Volume | 105dB | 102dB |
| MicroSD Playback | No | - |
| Party Mode | Yes (PartyCast 2.0 up to 100 speakers) | No |
| Power Bank | Yes (USB-A) | No |
| Power Input | USB-C | USB-C |
| Stereo | Partially (1 woofer) | Yes |
| Omnidirectional | No | No |
| TWS | Yes | Yes |
| Weight | 3.7 lbs / 1.68 kg | 5.5 lbs / 2.49 kg |
| Bluetooth Version | 5.3 | - |
| Dimensions | 11.7" x 7.3" x 4" (297 x 185 x 102 mm) | 9.6" x 6.4" x 5.5" (243 x 162 x 140 mm) |
| Drivers | 120mm x 90mm woofer, 2x 20mm tweeters | 1x 4" (102mm) woofer + 2x 20mm dome tweeters |
| Frequency Response | 45Hz - 20kHz (Manufacturer specified) | - |
| Output Power | 80W | 36W |
| Digital Aux Input | No | No |
Related Speaker Comparisons
A few more comparisons worth a look in the same class:
- Marshall Stockwell 2 vs Sony SRS-XG300
- Marshall Stockwell 2 vs Sony ULT Field 5
- Mifa Wildbox vs Minirig 2 with subwoofer
- Soundcore Motion X500 vs Marshall Kilburn II
- Tribit Stormbox Lava vs Marshall Kilburn II
Prices on this page were last checked August 27, 2026 at 10:09 PM UTC. Product prices and availability are accurate as of that date/time and are subject to change; the price and availability shown on Amazon at the time of purchase will apply to the purchase of this product.
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The Two Speakers In Full
Soundcore Boom 2: $99.99 Amazon B&H Photo Video eBay
Pros: Pretty deep bass for the size. Cool lights in the side passive radiators. For the best sound quality use Oluv’s EQ or Alan Ross’s EQ. With the stock tuning, this speaker would rank around #24, due to the boosted bass and rising treble.
Cons: Only a single midrange driver, so you only get stereo for the tweeters. Sound processing issues with inconsistent bass notes that disappear at low levels like the Soundcore Boom and Soundcore Boost, not great for listening at low levels. Quite bass heavy with BassUp turned on, I’d recommend turning it off. A little bit of a bright tuning in the treble, about +5db.
Full Soundcore Boom 2 review and specifications →
| App | Yes |
|---|---|
| Aux Input | No |
| Bass Extension (-10dB) | 47Hz |
| Battery Life | 24 hours (Manufacturer specified) |
| Bluetooth Codecs | SBC |
| Bluetooth Latency | 125ms |
| Bluetooth Version | 5.3 |
| Built in Microphone | No |
| Digital Aux Input | No |
| Dimensions | 11.7" x 7.3" x 4" (297 x 185 x 102 mm) |
| Drivers | 120mm x 90mm woofer, 2x 20mm tweeters |
| EQ | Yes |
| Frequency Response | 45Hz - 20kHz (Manufacturer specified) |
| IP Rating | IPX7 |
| Max Volume | 105dB |
| MicroSD Playback | No |
| Omnidirectional | No |
| Output Power | 80W |
| Party Mode | Yes (PartyCast 2.0 up to 100 speakers) |
| Power Bank | Yes (USB-A) |
| Power Input | USB-C |
| Stereo | Partially (1 woofer) |
| TWS | Yes |
| Weight | 3.7 lbs / 1.68 kg |
- Links
- Reviews, Comparisons and Sound Samples
- JOY‘s 3D Audio Show: Tribit StormBox Lava vs SoundCore Boom 2 - sound quality demo More from Oluv’Sone →
- JOY‘s 🎧3D🔈Audio-Show: JBL Charge 6 vs SoundCore Boom 2 - David vs Goliath
- Mateusz Cholewa: TRIBIT StormBox LAVA vs Soundcore BOOM 2 More from Mateusz Cholewa →
- Joy & Oluv’Sone: Bose SoundLink Max & SoundCore Boom 2 - indoor soundtest
- Joy & Oluv’Sone: Bose SoundLink Max & SoundCore Boom 2 - outdoor soundtest
- Joy & Oluv’Sone: Best portable speakers 2025 - get the best bang for your buck $$$
- Oluv Patreon: SoundCore Boom 3i - first impressions & EQs
- Alan Ross Reviews: Ultimate Soundcore Boom 2 Review - Is It Worth The Hype? More from alanrossreviews →
- Oluv Patreon: Anker Soundcore Boom 2 - first impressions
- Jay’s Straight Up Reviews & More: Soundcore Boom 2 💣vs Mifa Wildbox 🪇 Basement Battle of the Bluetooth Boombox Welterweights ⚖️ More from JaysStraightUpReviews →
- Jay’s Straight Up Reviews & More: New Release! Soundcore Boom 2 😯 Bluetooth Boombox Speaker 🔊 Unboxing, First Look & Sound Demo
- CEONTHEMAKING: Soundcore Boom 2 - HANDS DOWN The Best Speaker Under $150!
- Josh’s Gadgets and More: Budget Monster ZZA K8 vs Soundcore Boom 2
- Joy & Oluv’Sone: JBL, Bose, B&O, Sonos, Earfun, SoundCore… which portable speaker sounds best?
- Joy & Oluv’Sone: Sony ULT Field 5 vs Anker SoundCore Boom 2 - listening test
- Reddit Search for Soundcore Boom 2 Review
- Head-to-Head Comparisons
- Soundcore Boom 2 vs Mifa Wildbox
- Soundcore Boom 2 vs Marshall Stockwell 2
- Soundcore Boom 2 vs B&O Beosound A5
- Soundcore Boom 2 vs Harman Kardon Citation 200
- Soundcore Boom 2 vs Soundcore Motion Boom
- Soundcore Boom 2 vs Soundcore Select Pro
- Soundcore Boom 2 vs Brane X
- Soundcore Boom 2 vs B&O Beoplay A2 active
- See all 48 comparisons
Marshall Kilburn II: $279.00 Amazon eBay
Pros: 20W Class D amp + dual 8W tweeters. 20+ hour battery with quick-charge (20 min charges 3 hours of play). Rugged design with leather handle and reinforced corners, IPX2 rated. Thrives with rock music. Bluetooth 5.0 with 30ft range.
Cons: Boosted upper bass, not very detailed, not as deep bass as competitors, upper mids peak. Very low IPX2 water rating. AC charging
Full Marshall Kilburn II review and specifications →
| App | No |
|---|---|
| Aux Input | Yes |
| Bass Extension (-10dB) | ~58Hz |
| Battery Life | 20 hours (Manufacturer specified) |
| Bluetooth Codecs | SBC |
| Built in Microphone | Yes |
| Digital Aux Input | No |
| Dimensions | 9.6" x 6.4" x 5.5" (243 x 162 x 140 mm) |
| Drivers | 1x 4" (102mm) woofer + 2x 20mm dome tweeters |
| EQ | No |
| IP Rating | IPX2 |
| Max Volume | 102dB |
| Omnidirectional | No |
| Output Power | 36W |
| Party Mode | No |
| Power Bank | No |
| Power Input | USB-C |
| Stereo | Yes |
| TWS | Yes |
| Weight | 5.5 lbs / 2.49 kg |
- Reviews, Comparisons and Sound Samples
- Head-to-Head Comparisons
- Marshall Kilburn II vs Xdobo Bucket /BMTL Bucket / Zicoroop Ts
- Marshall Kilburn II vs JBL Xtreme 4
- Marshall Kilburn II vs W-King T9
- Marshall Kilburn II vs Ultimate Ears Everboom
- Marshall Kilburn II vs Sony ULT Field 5
- Marshall Kilburn II vs Marshall Middleton
- Marshall Kilburn II vs Sony SRS-XB43
- Marshall Kilburn II vs LG Xboom Bounce
- See all 39 comparisons