Short answer: the Onn Large Party gen 2. It ranks #16 of 43 party speakers by sound quality, rated 3.9/5, at $129; the Marshall Bromley 450 ranks #23, rated 3.7/5, and costs $649.95, so there is not much of a tradeoff to weigh.
What the Onn Large Party gen 2 does well: A remarkably full-featured, manageable 9.5kg party speaker: wheels and handle, FM radio, aux, USB-A charging, mic and guitar inputs with karaoke echo, and Party Sync. Watch for: The low price shows in the refinement.
The case for the Marshall Bromley 450: A balanced, warm sound with a flat midrange that keeps vocals and instruments clear, plenty of bass rumble and enough treble for energetic vocals, per RTINGS’ lab tests. 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 Onn Large Party gen 2. It is rated higher for sound quality than the Marshall Bromley 450 and costs less, so it is the default pick unless a specific strength of the other one matters more to you.
Battery life favors the Marshall Bromley 450: rated for 40 hours against 12 hours for the Onn Large Party gen 2.
Want more options? Browse the full Portable Bluetooth rankings.
Specifications Side By Side
| Onn Large Party gen 2 | Marshall Bromley 450 | |
|---|---|---|
| Price | $129 | $649.95 |
| Ranked | #16 of 43 in Party Size Portable Bluetooth Speakers | #23 of 43 in Party Size Portable Bluetooth Speakers |
| Aux Input | Yes | Yes (3.5mm, RCA) |
| Battery Life | 12 hours (Manufacturer specified) | 40+ hours (Manufacturer specified) |
| FM Tuner | Yes | - |
| Guitar Input | Yes | Yes |
| IP Rating | IPX4 | IP55 |
| Microphone Input | Yes (Karaoke mode with echo effect) | Yes (2x XLR/6.35mm combo) |
| Party Mode | Yes (Party Sync Mode) | Yes (Auracast) |
| Power Bank | Yes (USB-A, 5V/2.1A) | Yes (USB-C) |
| Power Input | AC Power cord | USB-C |
| Stereo | Partially | Yes |
| Omnidirectional | No | Yes |
| Weight | 20.9 lbs (9.5 kg) | 27.1 lbs (12.3 kg) |
| Bluetooth | Yes | Yes |
| Bluetooth Codecs | SBC | SBC, AAC, LC3 |
| App | No | Yes (Marshall Bluetooth app) |
| EQ | No | Yes |
| TWS | No | No |
| USB Playback | No | No |
| Drivers | Dual 8” (203mm) woofers + dual tweeters | 2x 6.5” woofers, 4x 2” full-range drivers, 2 passive radiators |
| Digital Aux Input | No | Yes (USB-C) |
| Lights | Yes | Yes |
| Wheels | Yes | No |
| Dimensions | 22.5”H x 11.6”W x 11.8”D (571 x 295 x 300 mm) | 14.4” x 19.4” x 10.3” (366 x 492 x 261 mm) |
| Amplifier Power | 160W RMS (640W peak) | 400W |
| Strap | No | No |
| Frequency Response | - | 42Hz - 20kHz (Manufacturer specified) |
| Charging Time | - | 3.5 hours |
| Removable Battery | - | Yes |
| Bluetooth Version | - | 5.3 |
| XLR Input | - | Yes (2x combo) |
| Built-in Microphone | - | No |
| Wi-Fi | - | No |
Related Speaker Comparisons
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Prices on this page were last checked September 30, 2026 at 2:57 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
Onn Large Party gen 2: $129 Walmart eBay
Older model: the Onn Large Party gen 1 (ranked lower, rated 2.7/5).
Pros: A remarkably full-featured, manageable 9.5kg party speaker: wheels and handle, FM radio, aux, USB-A charging, mic and guitar inputs with karaoke echo, and Party Sync. Independent testing confirms bass with real impact and enough output for a large room; it is a clear improvement over the Gen 1 for low-end weight.
Cons: The low price shows in the refinement. Consumer Reports found boomy bass, hazy/grainy mids, a prominent smeared treble and a narrow, two-dimensional soundfield; it also notes distortion or other audio issues. There is no app or EQ to tame the tuning, and IPX4 only covers splashes rather than rain or immersion.
Full Onn Large Party gen 2 review and specifications →
| Amplifier Power | 160W RMS (640W peak) |
|---|---|
| App | No |
| Aux Input | Yes |
| Battery Life | 12 hours (Manufacturer specified) |
| Bluetooth | Yes |
| Bluetooth Codecs | SBC |
| Digital Aux Input | No |
| Dimensions | 22.5”H x 11.6”W x 11.8”D (571 x 295 x 300 mm) |
| Drivers | Dual 8” (203mm) woofers + dual tweeters |
| EQ | No |
| FM Tuner | Yes |
| Guitar Input | Yes |
| IP Rating | IPX4 |
| Lights | Yes |
| Microphone Input | Yes (Karaoke mode with echo effect) |
| Omnidirectional | No |
| Party Mode | Yes (Party Sync Mode) |
| Power Bank | Yes (USB-A, 5V/2.1A) |
| Power Input | AC Power cord |
| Stereo | Partially |
| Strap | No |
| TWS | No |
| USB Playback | No |
| Weight | 20.9 lbs (9.5 kg) |
| Wheels | Yes |
- Reviews, Comparisons and Sound Samples
- Jay’s Straight Up Reviews & More: ONN Large Party Speaker Gen. 2 & 1 🔉 🔉 How To Do TWS & TWS Sound Demo. Bluetooth Speakers in Garage More from JaysStraightUpReviews →
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- Jay’s Straight Up Reviews & More: ONN Large Party Speaker 2 🎶 (Gen 2.0) First Look and Light Demo
- Jay’s Straight Up Reviews & More: ONN Large Party Speaker Gen 2 vs JBL Partybox 110 ☀️ Outdoors Pole Mounted 🤯 Bass Boost On
- Jay’s Straight Up Reviews & More: ONN Large Party Speaker Gen 2 vs JBL Partybox Encore 🛻 Tailgater Special 🔋 Battery Powered
- Jay’s Straight Up Reviews & More: ONN Large Party Speaker Gen. 2 (Bass Boost On) vs JBL Partybox 110 (Bass Boost 1)🩻Battery Powered🔋
- Williston Audio Labs: This Walmart Bluetooth Speaker is INCREDIBLE More from Williston Audio Labs →
- Head-to-Head Comparisons
- Onn Large Party gen 2 vs Sony SRS-XV500
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Marshall Bromley 450: $649.95 Amazon B&H Photo Video eBay
Pros: A balanced, warm sound with a flat midrange that keeps vocals and instruments clear, plenty of bass rumble and enough treble for energetic vocals, per RTINGS’ lab tests. Drivers on all four sides keep the tonal balance nearly the same from any angle, and M1M Tech Channel found it more open and airy than the Soundboks Mix and Teufel Rockster Air 2, with deeper bass than both. RTINGS measured 18.8 hours of battery from a swappable LiFePO4 pack shared with the Bromley 750, and it adds IP55 protection, two XLR/6.35mm combo inputs, USB-C audio, Auracast and physical bass and treble knobs.
Cons: 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. The warm tuning lacks some fine treble detail. There is no graphic EQ, only bass and treble knobs, and its stereo spreads left and right channels around the cabinet, so panned elements can land on the wrong side. At 12.3 kg it has a carry handle but no wheels.
Full Marshall Bromley 450 review and specifications →
| Amplifier Power | 400W |
|---|---|
| App | Yes (Marshall Bluetooth app) |
| Aux Input | Yes (3.5mm, RCA) |
| Battery Life | 40+ hours (Manufacturer specified) |
| Bluetooth | Yes |
| 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 | 14.4” x 19.4” x 10.3” (366 x 492 x 261 mm) |
| Drivers | 2x 6.5” woofers, 4x 2” full-range drivers, 2 passive radiators |
| EQ | Yes |
| Frequency Response | 42Hz - 20kHz (Manufacturer specified) |
| Guitar Input | Yes |
| IP Rating | IP55 |
| 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 | 27.1 lbs (12.3 kg) |
| Wheels | No |
| Wi-Fi | No |
| XLR Input | Yes (2x combo) |
- Links
- Reviews, Comparisons and Sound Samples
- RTINGS: Marshall Bromley 450 Review More from Rtings.com →
- M1M Tech Channel: The best in its class? Marshall Bromley 450 vs. Soundboks & Teufel More from M1MTechChannel →
- HeadphoneCheck: Marshall Bromley 450 test
- Tom’s Guide: Marshall Bromley 450 vs Bromley 750 face-off
- Smart Home Sounds: Marshall Bromley 450 review More from Smart Home Sounds →
- Storytripper HD: JBL Partybox 120 vs Marshall Bromley 450 (Indoor) More from storytripperhd →
- Storytripper HD: Marshall Bromley 450 vs Marshall Bromley 750 (outdoor)
- Storytripper HD: Marshall Woburn III vs Marshall Bromley 450
- Head-to-Head Comparisons
- Marshall Bromley 450 vs Soundboks Mix
- Marshall Bromley 450 vs Onn Large Party gen 1
- Marshall Bromley 450 vs Onn XL Wireless Party Speaker
- Marshall Bromley 450 vs JBL Partybox 110
- Marshall Bromley 450 vs JBL Partybox 130
- Marshall Bromley 450 vs JBL Partybox Club 120
- Marshall Bromley 450 vs Sony ULT Tower 5
- Marshall Bromley 450 vs JBL Partybox 310
- See all 13 comparisons