Short answer: the JBL Partybox 330. It ranks #2 of 54 party speakers by sound quality, rated 4.6/5, at $629.95. The Marshall Bromley 450 ranks #26, rated 3.7/5, at $569.99, $59.96 cheaper, not enough of a saving to outweigh the sound-quality gap.
The JBL Partybox 330 is the better-sounding option. A rolling party speaker with deep bass, a removable battery, a light show and inputs for mics and a guitar. The tradeoff: It remains very large and heavy, and the sound improvement over the JBL Partybox Stage 320 is modest rather than transformational.
The Marshall Bromley 450 is the longer-running, lighter option. A rugged, weather resistant party speaker with drivers on every side, a swappable battery, and mic and guitar inputs. It is rated for 40 hours of battery against 18 for the JBL Partybox 330. At 27.1 lbs (12.3 kg) it weighs noticeably less than the JBL Partybox 330 at 37.7 lbs (17.1 kg). It supports AAC Bluetooth, which the JBL Partybox 330 lacks. The catch: It is the quietest of its rivals: both the Soundboks Mix and Teufel Rockster Air 2 play louder, and near max volume the bass recedes and the sound gets less composed.
Buy the JBL Partybox 330. It is rated higher for sound quality, and the $59.96 saving on the Marshall Bromley 450 is not enough to make up the difference.
Still deciding? The full Portable Bluetooth rankings cover every ranked option.
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Specifications Side By Side
| JBL Partybox 330 | Marshall Bromley 450 | |
|---|---|---|
| Price | $629.95 | $569.99 |
| Ranked | #2 of 54 in Party Size Portable Bluetooth Speakers | #26 of 54 in 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 | 6.0 | 5.3 |
| Charging Time | 3 hours | 3.5 hours |
| Drivers | 2x 6.5” (165mm) woofers + 2x 1” (25mm) PEN dome tweeters | 2x 6.5” woofers, 4x 2” full-range drivers, 2 passive radiators |
| EQ | Yes (Smart EQ mode) | Yes |
| Guitar Input | Yes | Yes |
| IP Rating | IPX4 | IP55 |
| Microphone Input | Yes (Karaoke mode with echo effect) | Yes (2x XLR/6.35mm combo) |
| Inputs | Optical | - |
| Party Mode | Yes (Auracast) | Yes (Auracast) |
| Power Bank | Yes (USB-C, 5V/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 | 37.7 lbs (17.1 kg) | 27.1 lbs (12.3 kg) |
| Amplifier Power | 280W | 400W |
| Digital Aux Input | No | Yes (USB-C) |
| Lights | Yes | Yes |
| Wheels | Yes | No |
| Dimensions | 26.1”H x 13.1”W x 14.8”D (662.5 x 334 x 375 mm) | 14.4” x 19.4” x 10.3” (366 x 492 x 261 mm) |
| Strap | No | No |
| Frequency Response | - | 42Hz - 20kHz (Manufacturer specified) |
| XLR Input | - | Yes (2x combo) |
| Built-in Microphone | - | No |
| Wi-Fi | - | No |
Where the Ratings Come From
- JBL Partybox 330: reviews by M1MTechChannel, GYMCADDY and Simplificasom.
- Marshall Bromley 450: reviews by M1M Tech Channel, Smart Home Sounds and Storytripper HD.
This comparison is generated from the ratings, specifications and measurements on each product’s own page, and it updates when that data changes. How we rank explains how each rating is decided.
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