Short answer: the Marshall Bromley 450. It ranks #26 of 54 party speakers by sound quality (rated 3.7/5) at $569.99 and is still sold new; the Onn Large Party gen 1 ranks #41 (rated 2.7/5) and is discontinued, so it is only an option used. The Onn Large Party gen 1’s replacement, the Onn Large Party gen 2, is rated 3.9/5 at $129.
The Marshall Bromley 450 is the better-sounding, longer-running pick. 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 13 for the Onn Large Party gen 1. It is rated IP55, while the Onn Large Party gen 1 has no water resistance. It supports AAC Bluetooth, which the Onn Large Party gen 1 lacks. Watch for: 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.
Why pick the Onn Large Party gen 1: A rolling party speaker with FM radio, a mic and guitar input, lights, and phone charging for casual outdoor parties. The catch: Sound is not a strong reason to seek one out.
Buy the Marshall Bromley 450. It is rated higher for sound quality and still sold new, while the Onn Large Party gen 1 is discontinued.
Looking for alternatives? See the complete Portable Bluetooth rankings.
Prices on this page were last checked November 14, 2026 at 6:17 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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Specifications Side By Side
| Marshall Bromley 450 | Onn Large Party gen 1 | |
|---|---|---|
| Price | $569.99 | $100 Discontinued |
| Ranked | #26 of 54 in Party Size Portable Bluetooth Speakers | #41 of 54 in Party Size Portable Bluetooth Speakers |
| Amplifier Power | 400W | - |
| Drivers | 2x 6.5” woofers, 4x 2” full-range drivers, 2 passive radiators | 8” (203mm) woofer + drivers |
| Frequency Response | 42Hz - 20kHz (Manufacturer specified) | - |
| Battery Life | 40+ hours (Manufacturer specified) | 13 hours (Manufacturer specified) |
| Charging Time | 3.5 hours | - |
| Removable Battery | Yes | - |
| IP Rating | IP55 | None |
| Bluetooth | Yes | Yes |
| Bluetooth Version | 5.3 | - |
| Bluetooth Codecs | SBC, AAC, LC3 | SBC |
| Aux Input | Yes (3.5mm, RCA) | Yes |
| Digital Aux Input | Yes (USB-C) | No |
| Microphone Input | Yes (2x XLR/6.35mm combo) | - |
| XLR Input | Yes (2x combo) | - |
| Guitar Input | Yes | - |
| Power Bank | Yes (USB-C) | Yes (USB-A) |
| Power Input | USB-C | AC Power cord |
| App | Yes (Marshall Bluetooth app) | No |
| EQ | Yes | No |
| Party Mode | Yes (Auracast) | Yes (Party Sync Mode) |
| Built-in Microphone | No | - |
| USB Playback | No | No |
| Wi-Fi | No | - |
| TWS | No | Yes |
| Lights | Yes | Yes |
| Weight | 27.1 lbs (12.3 kg) | 23.1 lbs (10.5 kg) |
| Dimensions | 14.4” x 19.4” x 10.3” (366 x 492 x 261 mm) | 11.1” x 21.7” x 10.3” (281 x 552 x 262 mm) |
| Stereo | Yes | Yes |
| Omnidirectional | Yes | No |
| Strap | No | No |
| Wheels | No | Yes |
| FM Tuner | - | Yes |
| Bass Extension (-10dB) | - | ~60Hz |
Where the Ratings Come From
- Marshall Bromley 450: reviews by M1M Tech Channel, Smart Home Sounds and Storytripper HD.
- Onn Large Party gen 1: reviews by Jay’s Straight Up Reviews & More.
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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