Short answer: the Sony SRS-XV900. It ranks #10 of 11 large party speakers by sound quality at $900; the Marshall Bromley 750 ranks #11 and costs $1199.99, so there is not much of a tradeoff to weigh.
On the Sony SRS-XV900 side: Can get slightly louder than a Partybox 310. Set against that: Not as deep of bass and loses more bass at high volume compared to the Partybox 310 and every other speaker on this page.
What the Marshall Bromley 750 gets right: Much wider, more consistent off-axis dispersion than the JBL Partybox 720, which only fires forward - the Marshall’s standout feature, sounding about the same from any angle. The catch: Not as deep bass as the JBL Partybox 330 or JBL Partybox 720.
Buy the Sony SRS-XV900. It ranks higher for sound quality than the Marshall Bromley 750 and costs less, so there is no real case for the other one.
If sound quality matters at all to you, skip both of these and look higher up the 11 large party speakers instead.
If battery life is a priority, the Marshall Bromley 750 is rated for 40 hours versus 25 hours for the Sony SRS-XV900.
If water resistance matters to you, the Marshall Bromley 750 at IP54 (splashing) holds up far better than the Sony SRS-XV900 at no water resistance.
Specifications Side By Side
| Sony SRS-XV900 | Marshall Bromley 750 | |
|---|---|---|
| Price | $900 | $1,199.99 |
| Ranked | #10 of 11 in Large Party Size Portable Bluetooth Speakers | #11 of 11 in Large Party Size Portable Bluetooth Speakers |
| App | Yes | Yes (Marshall Bluetooth app) |
| Aux Input | Yes | Yes (3.5mm, RCA) |
| Battery Life | 25 hours (Manufacturer specified) | 40+ hours (Manufacturer specified) |
| EQ | Yes | Yes |
| Guitar Input | Yes | Yes |
| Microphone Input | Yes (Karaoke mode with echo effect) | Yes (2x XLR/6.35mm combo) |
| Optical Input | Yes | - |
| Party Mode | Yes (Party Connect up to 100 speakers) | Yes (Auracast) |
| Power Bank | Yes (USB-A) | Yes (USB-C) |
| Power Input | AC Power cord | USB-C |
| Removable Battery | No | Yes |
| USB Playback | Yes | No |
| Weight | 58.6 lbs / 26.6 kg | 52.7 lbs / 23.9 kg |
| Built in Microphone | No | No |
| IP Rating | None | IP54 |
| Stereo | Yes | Yes |
| Omnidirectional | No | No |
| TWS | Yes | No |
| Wifi | No | No |
| Bluetooth Codecs | SBC, AAC, LDAC | SBC, AAC, LC3 |
| Bluetooth Version | 5.2 | 5.3 |
| Dimensions | 16.1" x 34.6" x 17.3" (410 x 880 x 439 mm) | 16.3" x 25.7" x 14" (413 x 652 x 355 mm) |
| Drivers | 9 drivers: 1x 12.6"x12.6" woofer, 2x 4.7" midrange, 2x 2" front tweeter, 2x 1.6" side tweeter, 2x 1.6" rear tweeter | 2x 10" woofers, 2x 5.25" mid-ranges, 2x 1" tweeters, 2x 0.8" tweeters |
| Output Power | 100W | 400W |
| Digital Aux Input | No | Yes (USB-C) |
| XLR Input | - | Yes (2x combo) |
| Charging Time | - | 3.5 hours |
| Frequency Response | - | 20Hz - 20kHz (Manufacturer specified) |
| Discontinued | - | No |
Related Speaker Comparisons
More useful head-to-heads from the same speaker class:
- Teufel Rockster 2 vs Sony ULT Tower 10
- JBL Partybox Ultimate vs Sony ULT Tower 10
- JBL Partybox 1000 vs Sony ULT Tower 10
- Marshall Bromley 750 vs JBL Partybox 520
- Teufel Rockster 2 vs Sony SRS-XV900
The Two Speakers In Full
Sony SRS-XV900: $900 Amazon
Pros: Can get slightly louder than a Partybox 310. Handle and wheels are convenient.
Cons: Not as deep of bass and loses more bass at high volume compared to the Partybox 310 and every other speaker on this page
Full Sony SRS-XV900 review and specifications →
| App | Yes |
|---|---|
| Aux Input | Yes |
| Battery Life | 25 hours (Manufacturer specified) |
| Bluetooth Codecs | SBC, AAC, LDAC |
| Bluetooth Version | 5.2 |
| Built in Microphone | No |
| Digital Aux Input | No |
| Dimensions | 16.1" x 34.6" x 17.3" (410 x 880 x 439 mm) |
| Drivers | 9 drivers: 1x 12.6"x12.6" woofer, 2x 4.7" midrange, 2x 2" front tweeter, 2x 1.6" side tweeter, 2x 1.6" rear tweeter |
| EQ | Yes |
| Guitar Input | Yes |
| IP Rating | None |
| Microphone Input | Yes (Karaoke mode with echo effect) |
| Omnidirectional | No |
| Optical Input | Yes |
| Output Power | 100W |
| Party Mode | Yes (Party Connect up to 100 speakers) |
| Power Bank | Yes (USB-A) |
| Power Input | AC Power cord |
| Removable Battery | No |
| Stereo | Yes |
| TWS | Yes |
| USB Playback | Yes |
| Weight | 58.6 lbs / 26.6 kg |
| Wifi | No |
As an eBay Partner, we may be compensated if you make a purchase.
- Links
- Reviews, Comparisons and Sound Samples
- Jay’s Straight Up Reviews & More: Sony SRS-XV900 vs JBL Partybox 310 - Can the JBL Middleweight 💪🏽 Compete With The Sony Heavyweight?
- Jay’s Straight Up Reviews & More: JBL Partybox 710 ☣️ vs Sony SRS XV900 ☢️- Basement Brawl Speaker Comparison. Can XV900 Top the 710❓
- GYMCADDY: Sony XV900 Review - Finally, A Good Speaker From Sony!
- Reddit Search for Sony SRS-XV900 Review
- Head-to-Head Comparisons
- Sony SRS-XV900 vs Sony ULT Tower 10
- Sony SRS-XV900 vs Sony ULT Tower 9
- Sony SRS-XV900 vs Teufel Rockster
- Sony SRS-XV900 vs JBL Partybox 520
- Sony SRS-XV900 vs JBL Partybox 710
- Sony SRS-XV900 vs JBL Partybox 720
- Sony SRS-XV900 vs Teufel Rockster 2
- Sony SRS-XV900 vs JBL Partybox 1000
- See all 12 comparisons
Marshall Bromley 750: $1,199.99 Amazon
Pros: Much wider, more consistent off-axis dispersion than the JBL Partybox 720, which only fires forward - the Marshall’s standout feature, sounding about the same from any angle.
Cons: Not as deep bass as the JBL Partybox 330 or JBL Partybox 720. Not a great frequency response overall, with some midrange peaks. Only basic bass/treble controls, no full custom EQ like the JBL Partybox 720’s app. Default bass (dynamic mode) is overdone out of the box and needs trimming.
Full Marshall Bromley 750 review and specifications →
| App | Yes (Marshall Bluetooth app) |
|---|---|
| Aux Input | Yes (3.5mm, RCA) |
| Battery Life | 40+ hours (Manufacturer specified) |
| Bluetooth Codecs | SBC, AAC, LC3 |
| Bluetooth Version | 5.3 |
| Built in Microphone | No |
| Charging Time | 3.5 hours |
| Digital Aux Input | Yes (USB-C) |
| Dimensions | 16.3" x 25.7" x 14" (413 x 652 x 355 mm) |
| Discontinued | No |
| Drivers | 2x 10" woofers, 2x 5.25" mid-ranges, 2x 1" tweeters, 2x 0.8" tweeters |
| EQ | Yes |
| Frequency Response | 20Hz - 20kHz (Manufacturer specified) |
| Guitar Input | Yes |
| IP Rating | IP54 |
| Microphone Input | Yes (2x XLR/6.35mm combo) |
| Omnidirectional | No |
| Output Power | 400W |
| Party Mode | Yes (Auracast) |
| Power Bank | Yes (USB-C) |
| Power Input | USB-C |
| Removable Battery | Yes |
| Stereo | Yes |
| TWS | No |
| USB Playback | No |
| Weight | 52.7 lbs / 23.9 kg |
| Wifi | No |
| XLR Input | Yes (2x combo) |
As an eBay Partner, we may be compensated if you make a purchase.
- Links
- Reviews, Comparisons and Sound Samples
- Joy & Oluv’Sone: Marshall Bromley 750 vs JBL Partybox 720 - outdoor test
- Storytripper HD: W-King T12 vs Marshall Bromley 750
- Danny Pops: I Finally Got The Marshall Bromley 750 Everyone Wanted
- Oluv Patreon: JBL Partybox 720 vs Marshall Bromley 750
- Oluv Patreon: Marshall Bromley 750 - battery issues in the cold
- Oluv Patreon: Marshall Bromley 750 & Teufel Rockster Air 2 - outdoor test
- Oluv Patreon: Marshall Bromley 750 - 2nd look after update
- Oluv Patreon: Marshall Bromley 750 - first impressions
- Reddit Search for Marshall Bromley 750 Review
- Head-to-Head Comparisons
- Marshall Bromley 750 vs Sony ULT Tower 10
- Marshall Bromley 750 vs Sony ULT Tower 9
- Marshall Bromley 750 vs JBL Partybox 520
- Marshall Bromley 750 vs JBL Partybox 710
- Marshall Bromley 750 vs JBL Partybox 720
- Marshall Bromley 750 vs Teufel Rockster 2
- Marshall Bromley 750 vs JBL Partybox 1000
- Marshall Bromley 750 vs JBL Partybox Ultimate
- See all 11 comparisons