Short answer: the Partybox 1000 if you want maximum output and don’t need portability or app control; the Bromley 750 if you need it to run on battery. These rank #12 and #3 out of 12 large-party speakers, at $999.95 and $1,099.95, with the Bromley 750 costing $100 more.
The Partybox 1000 has no battery and no app - it’s built purely to be plugged in and cranked. It’s rated at 1100W against the Bromley 750’s 400W, nearly triple, and our own notes call it right up there with the flagship Partybox Ultimate for output. The Bromley 750 trades that ceiling for genuine portability: 40-plus hours of battery life and app-based control the Partybox 1000 simply doesn’t offer.
Sound character is a different trade too. The Bromley 750’s own notes flag its bass as not especially deep and its frequency response as unremarkable, with some midrange peaks - the Partybox 1000, by contrast, inherits the same big-driver approach as the Ultimate that our notes rate among the deepest-bass Bluetooth speakers around.
Both are heavy, wheeled units - the Partybox 1000 is the bulkier of the two at 34 kg (75 lbs) against the Bromley 750’s 23.9 kg (52.7 lbs) - and both take guitar and karaoke-style microphone input, with the Bromley 750 adding true XLR-level jacks.
Buy the Partybox 1000 for maximum output if it’s staying near an outlet. Buy the Bromley 750 if you actually need battery power and app control.
There is a real gap in water resistance: the Marshall Bromley 750 at IP54 (splashing) against the JBL Partybox 1000, which has no water resistance.
Still deciding? The full Portable Bluetooth rankings cover every ranked option.
Specifications Side By Side
| Marshall Bromley 750 | JBL Partybox 1000 | |
|---|---|---|
| Price | $999.95 | $1,099.95 |
| Ranked | #12 of 12 in Large Party Size Portable Bluetooth Speakers | #3 of 12 in Large Party Size Portable Bluetooth Speakers |
| Aux Input | Yes (3.5mm, RCA) | Yes |
| Battery Life | 40+ hours (Manufacturer specified) | No Battery |
| Bluetooth Codecs | SBC, AAC, LC3 | SBC |
| Guitar Input | Yes | Yes |
| IP Rating | IP54 | None |
| Microphone Input | Yes (2x XLR/6.35mm combo) | Yes (Karaoke mode with echo effect) |
| Power Bank | Yes (USB-C) | Yes (USB-A) |
| Power Input | USB-C | AC Power cord |
| Weight | 52.7 lbs (23.9 kg) | 75 lbs (34 kg) |
| XLR Input | Yes (2x combo) | - |
| App | Yes (Marshall Bluetooth app) | No |
| Built-in Microphone | No | No |
| EQ | Yes | Yes |
| Party Mode | Yes (Auracast) | No |
| Stereo | Yes | Yes |
| Omnidirectional | No | No |
| TWS | No | Yes |
| USB Playback | No | Yes |
| Wi-Fi | No | No |
| Bluetooth Version | 5.3 | 4.2 |
| Dimensions | 16.3” x 25.7” x 14” (413 x 652 x 355 mm) | 15.6” x 41.3” x 15.4” (397 x 1050 x 390 mm) |
| Drivers | 2x 10” woofers, 2x 5.25” mid-ranges, 2x 1” tweeters, 2x 0.8” tweeters | 1x 12” down-firing woofer, 2x 7” midrange, 1x compression horn tweeter |
| Amplifier Power | 400W | 1100W |
| Digital Aux Input | Yes (USB-C) | No |
| Removable Battery | Yes | - |
| Charging Time | 3.5 hours | - |
| Frequency Response | 20Hz - 20kHz (Manufacturer specified) | - |
| Discontinued | No | - |
| Lights | Yes | Yes |
| Strap | No | No |
| Wheels | - | Yes |
Related Speaker Comparisons
How JBL Partybox 1000 compares with other leading options:
- Sony ULT Tower Max vs JBL Partybox 1000
- JBL Partybox 1000 vs JBL Partybox Ultimate
- JBL Partybox 1000 vs Teufel Rockster 2
- JBL Partybox 1000 vs JBL Partybox 720
- JBL Partybox 1000 vs JBL Partybox 710
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) |
| 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 |
| Lights | Yes |
| Microphone Input | Yes (2x XLR/6.35mm combo) |
| Omnidirectional | No |
| 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
- Marshall Bromley 750 vs Sony SRS-XV900
- Marshall Bromley 750 vs Sony ULT Tower 10
- Marshall Bromley 750 vs Sony ULT Tower 9
- Marshall Bromley 750 vs Teufel Rockster
- 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
- See all 16 comparisons
JBL Partybox 1000: $1,099.95 Amazon eBay
Pros: Handle and wheels are convenient. Right up there with the Partybox Ultimate, this was the previous speaker in that size. A better value than the Partybox Ultimate. Nice waterfall lightshow.
Cons: Very large and heavy. No battery. No app.
Full JBL Partybox 1000 review and specifications →
| Amplifier Power | 1100W |
|---|---|
| App | No |
| Aux Input | Yes |
| Battery Life | No Battery |
| Bluetooth Codecs | SBC |
| Bluetooth Version | 4.2 |
| Built-in Microphone | No |
| Digital Aux Input | No |
| Dimensions | 15.6” x 41.3” x 15.4” (397 x 1050 x 390 mm) |
| Drivers | 1x 12” down-firing woofer, 2x 7” midrange, 1x compression horn tweeter |
| EQ | Yes |
| Guitar Input | Yes |
| IP Rating | None |
| Lights | Yes |
| Microphone Input | Yes (Karaoke mode with echo effect) |
| Omnidirectional | No |
| Party Mode | No |
| Power Bank | Yes (USB-A) |
| Power Input | AC Power cord |
| Stereo | Yes |
| Strap | No |
| TWS | Yes |
| USB Playback | Yes |
| Weight | 75 lbs (34 kg) |
| Wheels | Yes |
| Wi-Fi | No |
- Links
- Reviews, Comparisons and Sound Samples
- Head-to-Head Comparisons
- JBL Partybox 1000 vs JBL Partybox Ultimate
- JBL Partybox 1000 vs Teufel Rockster 2
- JBL Partybox 1000 vs JBL Partybox 720
- JBL Partybox 1000 vs Sony ULT Tower Max
- JBL Partybox 1000 vs JBL Partybox 710
- JBL Partybox 1000 vs JBL Partybox 520
- JBL Partybox 1000 vs Teufel Rockster
- JBL Partybox 1000 vs Sony ULT Tower 9
- See all 19 comparisons