Short answer: the Partybox 720 for most people - it’s cheaper, has deeper bass, and gives you real EQ control; the Bromley 750 if all-around sound coverage matters more than raw bass. These rank #12 and #5 out of 12 large-party speakers, at $999.95 and $1,099.95, with the Bromley 750 costing $100 more.
The Bromley 750’s standout feature is dispersion. Unlike the Partybox 720, which fires forward and thins out as you move to the side, the Bromley 750 projects sound in every direction fairly evenly - genuinely useful if the speaker sits in the middle of a space rather than against a wall.
The Partybox 720 wins on bass and tuning control. Our own notes on the Bromley 750 are direct: it isn’t as deep in the bass as the Partybox 720, and its overall frequency response isn’t great, with some midrange peaks. The Bromley 750 only offers basic bass and treble sliders, while the Partybox 720 has a full app EQ with presets and a custom mode - and the Bromley’s default “dynamic” bass setting runs heavy out of the box and needs trimming to sound its best.
Both are wheeled, mains-optional party speakers with XLR-level inputs, though the Bromley 750 more than doubles the Partybox 720’s battery life - 40-plus hours against 15.
Buy the Partybox 720 for deeper, better-controlled bass and real EQ, at a lower price. Buy the Bromley 750 if even coverage around the speaker and a much longer battery matter more to you than bass depth.
Want more options? Browse the full Portable Bluetooth rankings.
Specifications Side By Side
| Marshall Bromley 750 | JBL Partybox 720 | |
|---|---|---|
| Price | $999.95 | $1,099.95 |
| Ranked | #12 of 12 in Large Party Size Portable Bluetooth Speakers | #5 of 12 in Large Party Size Portable Bluetooth Speakers |
| Aux Input | Yes (3.5mm, RCA) | Yes |
| Battery Life | 40+ hours (Manufacturer specified) | 15 hours (Manufacturer specified) |
| Bluetooth Codecs | SBC, AAC, LC3 | SBC |
| Guitar Input | Yes | Yes |
| IP Rating | IP54 | IPX4 |
| Microphone Input | Yes (2x XLR/6.35mm combo) | Yes (Karaoke mode with echo effect) |
| Power Bank | Yes (USB-C) | Yes (USB-C) |
| Power Input | USB-C | AC Power cord |
| Weight | 52.7 lbs (23.9 kg) | 68.3 lbs (31 kg) |
| XLR Input | Yes (2x combo) | - |
| App | Yes (Marshall Bluetooth app) | Yes |
| Built-in Microphone | No | No |
| EQ | Yes | Yes (5 band) |
| Party Mode | Yes (Auracast) | Yes (Auracast) |
| Stereo | Yes | Yes |
| Omnidirectional | Yes | No |
| TWS | No | Yes |
| USB Playback | No | Yes |
| Wi-Fi | No | No |
| Bluetooth Version | 5.3 | 5.4 |
| Dimensions | 16.3” x 25.7” x 14” (413 x 652 x 355 mm) | 16.4” x 37.1” x 16” (416 x 942 x 406 mm) |
| Drivers | 2x 10” woofers, 2x 5.25” mid-ranges, 2x 1” tweeters, 2x 0.8” tweeters | 2x 9” woofer, 2x 1.25” dome tweeter |
| Amplifier Power | 400W | 800W |
| Digital Aux Input | Yes (USB-C) | No |
| Removable Battery | Yes | Yes |
| Charging Time | 3.5 hours | - |
| Frequency Response | 20Hz - 20kHz (Manufacturer specified) | - |
| Lights | Yes | Yes |
| Strap | No | No |
| Wheels | - | Yes |
Related Speaker Comparisons
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- Sony ULT Tower Max vs JBL Partybox 720
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- Teufel Rockster 2 vs JBL Partybox 720
- JBL Partybox 710 vs JBL Partybox 720
Prices on this page were last checked September 26, 2026 at 11:14 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
Marshall Bromley 750: $999.95 Amazon eBay
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 →
| Amplifier Power | 400W |
|---|---|
| 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) |
| 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 |
| Lights | Yes |
| Microphone Input | Yes (2x XLR/6.35mm combo) |
| Omnidirectional | Yes |
| Party Mode | Yes (Auracast) |
| Power Bank | Yes (USB-C) |
| Power Input | USB-C |
| Removable Battery | Yes |
| Stereo | Yes |
| Strap | No |
| TWS | No |
| USB Playback | No |
| Weight | 52.7 lbs (23.9 kg) |
| Wi-Fi | No |
| XLR Input | Yes (2x combo) |
- Links
- Reviews, Comparisons and Sound Samples
- Joy & Oluv’Sone: Marshall Bromley 750 vs JBL Partybox 720 - outdoor test More from Oluv’Sone →
- Storytripper HD: W-King T12 vs Marshall Bromley 750 More from storytripperhd →
- Danny Pops: I Finally Got The Marshall Bromley 750 Everyone Wanted More from DannyPops →
- 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
- Head-to-Head Comparisons
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- See all 17 comparisons
JBL Partybox 720: $1,099.95 Amazon B&H Photo Video eBay
Older model: the JBL Partybox 710 (ranked lower, rated 4.7/5).
Pros: JBL’s most powerful battery-equipped PartyBox combines 800W output, two removable batteries, wheels, a light show, Auracast, USB-C playback, app EQ and karaoke/guitar inputs. Independent testing confirms very high output, strong bass and a flexible 5- or 7-band EQ; it can easily cover a backyard or large event.
Cons: At 31kg and 94cm tall, it is still cumbersome despite the wheels. Its front-facing vertical driver layout gives uneven sound to listeners at the sides or behind it, bass compresses at very high volume and reviewers note a faint hiss. The default is dark/bass-heavy, so use the app EQ and do not expect a neutral indoor hi-fi speaker.
Full JBL Partybox 720 review and specifications →
| Amplifier Power | 800W |
|---|---|
| App | Yes |
| Aux Input | Yes |
| Battery Life | 15 hours (Manufacturer specified) |
| Bluetooth Codecs | SBC |
| Bluetooth Version | 5.4 |
| Built-in Microphone | No |
| Digital Aux Input | No |
| Dimensions | 16.4” x 37.1” x 16” (416 x 942 x 406 mm) |
| Drivers | 2x 9” woofer, 2x 1.25” dome tweeter |
| EQ | Yes (5 band) |
| Guitar Input | Yes |
| IP Rating | IPX4 |
| Lights | Yes |
| Microphone Input | Yes (Karaoke mode with echo effect) |
| Omnidirectional | No |
| Party Mode | Yes (Auracast) |
| Power Bank | Yes (USB-C) |
| Power Input | AC Power cord |
| Removable Battery | Yes |
| Stereo | Yes |
| Strap | No |
| TWS | Yes |
| USB Playback | Yes |
| Weight | 68.3 lbs (31 kg) |
| Wheels | Yes |
| Wi-Fi | No |
- Links
- Reviews, Comparisons and Sound Samples
- Oluv Patreon: JBL Partybox 720 - indoor EQ More from Oluv’Sone →
- Oluv Patreon: JBL Partybox 520 & 720 - indoor listening session
- Oluv Patreon: JBL Partybox 520 vs 720 - outdoor test
- Oluv Patreon: JBL Partybox 720 - first impressions
- Oluv Patreon: JBL Partybox 720 vs Teufel Rockster Neo - outdoor test
- Oluv Patreon: JBL Partybox 720 vs Marshall Bromley 750 - outdoor test
- Oluv Patreon: JBL Partybox 720 - first impressions
- Oluv Patreon: Sony ULT Tower 9 vs JBL Partybox 720 - indoor listening test
- Oluv Patreon: Sony ULT Tower 9 vs JBL Partybox 720 - power generator test
- GYMCADDY: JBL Partybox 720 Vs JBL Partybox 520 More from GYMCADDY →
- GYMCADDY: JBL Partybox 720 Review
- GYMCADDY: JBL Partybox 720 Vs JBL Partybox Ultimate
- GYMCADDY: JBL Partybox 720 Vs Sony ULT Tower 9
- AudioTribe: JBL Partybox 720 vs JBL Partybox 520 Who’s Better?
- M1MTechChannel: Vorsicht LAUT ⚠️ | Teufel Rockster 2 vs JBL Partybox 720 / Ultimate More from M1MTechChannel →
- M1MTechChannel: Welche JBL Partybox ist die BESTE ? Alle Partyboxen im Vergleich | 2026
- M1MTechChannel: JBL Partybox 720 | Was hat JBL denn da gemacht?!
- Joy & Oluv’Sone 3DAudio & Music: Sony ULT9 vs JBL Partybox 720 - the king of battery powered party speakers
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- JBL Partybox 720 vs Teufel Rockster
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