Short answer: the Bose SoundLink Max for better sound quality, the Marshall Kilburn II for the lower price. The Bose SoundLink Max ranks #17 of 77 large speakers at $309.99. The Marshall Kilburn II ranks #36 at $279, $30.99 cheaper.
The case for the Bose SoundLink Max: IP67 rated, dustproof and waterproof to 1m. The catch: Big peak in the upper bass, dipped midrange and lots of peaks and dips above the midrange.
On the Marshall Kilburn II side: 20W Class D amp + dual 8W tweeters. Watch for: Boosted upper bass, not very detailed, not as deep bass as competitors, upper mids peak.
Buy the Bose SoundLink Max if sound quality matters more than the price. Buy the Marshall Kilburn II if the price matters more than sound quality.
If water resistance matters to you, the Bose SoundLink Max at IP67 (brief submersion) holds up far better than the Marshall Kilburn II at IPX2 (light drips).
Specifications Side By Side
| Bose SoundLink Max | Marshall Kilburn II | |
|---|---|---|
| Price | $309.99 | $279.00 |
| Ranked | #17 of 77 in Large Size Portable Bluetooth Speakers | #36 of 77 in Large Size Portable Bluetooth Speakers |
| App | Yes | No |
| Aux Input | Yes | Yes |
| Aux Latency | 33ms | - |
| Bass Extension (-10dB) | 48Hz | ~58Hz |
| Battery Life | 20 hours (Manufacturer specified) | 20 hours (Manufacturer specified) |
| Built in Microphone | No | Yes |
| IP Rating | IP67 | IPX2 |
| Bluetooth Latency | 116ms | - |
| Power Bank | Yes (USB-C) | No |
| Power Input | USB-C | USB-C |
| Stereo | Partially (1 tweeter) | Yes |
| Omnidirectional | No | No |
| Weight | 4.9 lbs / 2.2 kg | 5.5 lbs / 2.49 kg |
| Bluetooth Codecs | SBC | SBC |
| EQ | No | No |
| Party Mode | No | No |
| TWS | Yes | Yes |
| Bluetooth Version | 5.3 | - |
| Dimensions | 10.4" x 4.7" x 4.1" (264.7 x 120.1 x 104.9 mm) | 9.6" x 6.4" x 5.5" (243 x 162 x 140 mm) |
| Drivers | 2x 2.5" (63.5mm) midrange drivers + 1x 0.79" (20mm) tweeter | 1x 4" (102mm) woofer + 2x 20mm dome tweeters |
| Output Power | Specs not published by manufacturer | 36W |
| Digital Aux Input | No | No |
| Max Volume | - | 102dB |
Related Speaker Comparisons
More useful head-to-heads from the same speaker class:
- JBL Xtreme 3 vs JBL Xtreme 4
- JBL Xtreme 4 vs Marshall Stockwell 2
- JBL Xtreme 4 vs JBL Xtreme
- Sonos Move vs Marshall Kilburn II
- JBL Xtreme 5 vs Marshall Kilburn II
The Two Speakers In Full
Bose SoundLink Max: $309.99 Amazon
Pros: IP67 rated - dustproof and waterproof to 1m. Up to 20 hour battery; real-world testing found 43+ hours. Deep, rich bass with neutral tuning, app EQ. USB-C doubles as device charger. Sturdy carry handle.
Cons: Big peak in the upper bass, dipped midrange and lots of peaks and dips above the midrange. Bass not as deep as a Boom 2. Gets distorted above 80%. Self drains the battery about 20% a week.
Full Bose SoundLink Max review and specifications →
| App | Yes |
|---|---|
| Aux Input | Yes |
| Aux Latency | 33ms |
| Bass Extension (-10dB) | 48Hz |
| Battery Life | 20 hours (Manufacturer specified) |
| Bluetooth Codecs | SBC |
| Bluetooth Latency | 116ms |
| Bluetooth Version | 5.3 |
| Built in Microphone | No |
| Digital Aux Input | No |
| Dimensions | 10.4" x 4.7" x 4.1" (264.7 x 120.1 x 104.9 mm) |
| Drivers | 2x 2.5" (63.5mm) midrange drivers + 1x 0.79" (20mm) tweeter |
| EQ | No |
| IP Rating | IP67 |
| Omnidirectional | No |
| Output Power | Specs not published by manufacturer |
| Party Mode | No |
| Power Bank | Yes (USB-C) |
| Power Input | USB-C |
| Stereo | Partially (1 tweeter) |
| TWS | Yes |
| Weight | 4.9 lbs / 2.2 kg |
As an eBay Partner, we may be compensated if you make a purchase.
- Links
- Reviews, Comparisons and Sound Samples
- Joy & Oluv’Sone: Bose SoundLink Max & SoundCore Boom 2 - indoor soundtest More from Oluv’Sone →
- Joy & Oluv’Sone: Bose SoundLink Max & SoundCore Boom 2 - outdoor soundtest
- Alan Ross Reviews: Bose Max, the worlds most overpriced speaker? its a shocker! More from alanrossreviews →
- Oluv Patreon: Marshall Middleton II - first impressions
- Jay’s Straight Up Reviews & More: Bose SoundLink Max vs. Ultimate Ears EpicBoom 🤑Big Bucks No Whammies? 💣 Let’s Find Out 😧 More from JaysStraightUpReviews →
- Jay’s Straight Up Reviews & More: Bose SoundLink Max vs Tribit XSound Mega 😲 Can the Budget Priced Speaker Hang With the Big $ One?
- Scott’s Reviews: Bose SoundLink Max First Impressions, Unboxing, and Sound Test.
- Reddit Search for Bose SoundLink Max Review
- Head-to-Head Comparisons
- Bose SoundLink Max vs B&O Beoplay A2 active
- Bose SoundLink Max vs JBL Xtreme 3
- Bose SoundLink Max vs Soundcore Motion X600
- Bose SoundLink Max vs Soundcore Select Pro
- Bose SoundLink Max vs Soundcore Rave Neo 2
- Bose SoundLink Max vs Soundcore Motion Boom
- Bose SoundLink Max vs Harman Kardon Citation 200
- Bose SoundLink Max vs Teufel Rockster Cross
- See all 28 comparisons
Marshall Kilburn II: $279.00 Amazon
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 |
As an eBay Partner, we may be compensated if you make a purchase.
- 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 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
- Marshall Kilburn II vs W-King D8
- See all 26 comparisons


