These sit in different size classes, so this is not a straight ranking comparison. The JBL Partybox Stage 320 ranks #3 of 51 party speakers by sound quality at $499.95; the Marshall Bromley 750 ranks #13 of 13 large party speakers by sound quality at $999.99.
The JBL Partybox Stage 320 is the lighter option. An excellent sounding party speaker, with deep bass that holds up at high volume, wheels, a removable battery and mic inputs. At 36.4 lbs (16.5 kg) it weighs noticeably less than the Marshall Bromley 750 at 52.7 lbs (23.9 kg). The tradeoff: Slightly sibilant in the treble at full blast.
The Marshall Bromley 750 is the longer-running option. A stylish battery party speaker that spreads sound evenly in every direction, with a very long rated battery. It is rated for 40 hours of battery against 18 for the JBL Partybox Stage 320. It supports AAC Bluetooth, which the JBL Partybox Stage 320 lacks. The catch: Not as deep bass as the JBL Partybox 330 or JBL Partybox 720.
Buy the JBL Partybox Stage 320 at $499.95 for a party speaker, or the Marshall Bromley 750 at $999.99 for a large party speaker instead.
Still deciding? The full Portable Bluetooth rankings cover every ranked option.
An excellent sounding party speaker, with deep bass that holds up at high volume, wheels, a removable battery and mic inputs.
A stylish battery party speaker that spreads sound evenly in every direction, with a very long rated battery.
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Specifications Side By Side
| JBL Partybox Stage 320 | Marshall Bromley 750 | |
|---|---|---|
| Price | $499.95 | $999.99 |
| Ranked | #3 of 51 in Party Size Portable Bluetooth Speakers | #13 of 13 in Large Party Size Portable Bluetooth Speakers |
| App | Yes | Yes (Marshall Bluetooth app) |
| Aux Input | Yes | Yes (3.5mm, RCA) |
| Battery Life | 18 hours (Manufacturer specified) | 40+ hours (Manufacturer specified) |
| Bluetooth | Yes | Yes |
| Bluetooth Codecs | SBC | SBC, AAC, LC3 |
| Bluetooth Version | 5.4 | 5.3 |
| Drivers | 2x 6.5” woofers, 2x 25mm tweeters | 2x 10” woofers, 2x 5.25” mid-ranges, 2x 1” tweeters, 2x 0.8” tweeters |
| EQ | Yes (5 band) | Yes |
| Guitar Input | Yes | Yes |
| IP Rating | IPX4 | IP54 |
| Microphone Input | Yes (Karaoke mode with echo effect) | Yes (2x XLR/6.35mm combo) |
| Party Mode | Yes (Auracast) | Yes (Auracast) |
| Power Bank | Yes (USB-A, 5V/2.1A) | Yes (USB-C) |
| Power Input | AC Power cord | USB-C |
| Removable Battery | Yes | Yes |
| Stereo | Partially | Yes |
| Omnidirectional | No | Yes |
| TWS | Yes | No |
| USB Playback | Yes | No |
| Weight | 36.4 lbs (16.5 kg) | 52.7 lbs (23.9 kg) |
| Amplifier Power | 240W | 400W |
| Digital Aux Input | No | Yes (USB-C) |
| Lights | Yes | Yes |
| Wheels | Yes | - |
| Dimensions | 26.3”H x 13.2”W x 15.2”D (669 x 335 x 385 mm) | 16.3” x 25.7” x 14” (413 x 652 x 355 mm) |
| Strap | No | No |
| XLR Input | - | Yes (2x combo) |
| Built-in Microphone | - | No |
| Wi-Fi | - | No |
| Charging Time | - | 3.5 hours |
| Frequency Response | - | 20Hz - 20kHz (Manufacturer specified) |
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