Short answer: the Onn XL Wireless Party Speaker. It ranks #11 of 43 party speakers by sound quality, rated 4.1/5, at $249; the Marshall Bromley 450 ranks #23, rated 3.7/5, and costs $649.95, so there is little reason to consider the other one.
Why pick the Onn XL Wireless Party Speaker: A compelling all-in-one party and karaoke package: dual 8-inch woofers, 240W claimed output, two included wireless microphones, dual mic/guitar inputs, karaoke effects and USB-A phone charging. Watch for: Sound favors punch and a forward/bright top end over refinement.
Why pick 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 XL Wireless Party Speaker. It is rated higher for sound quality than the Marshall Bromley 450 and costs less, so only choose the other one for a particular feature it does better.
There is a real battery-life gap here: the Marshall Bromley 450 is rated for 40 hours, the Onn XL Wireless Party Speaker only 16 hours.
Looking for alternatives? See the complete Portable Bluetooth rankings.
Specifications Side By Side
| Onn XL Wireless Party Speaker | Marshall Bromley 450 | |
|---|---|---|
| Price | $249.00 | $649.95 |
| Ranked | #11 of 43 in Party Size Portable Bluetooth Speakers | #23 of 43 in Party Size Portable Bluetooth Speakers |
| Weight | 44 lbs (19.96 kg) | 27.1 lbs (12.3 kg) |
| Dimensions | 30.1”H x 15.7”W x 15.5”D (765.0 x 400.0 x 392.9 mm) | 14.4” x 19.4” x 10.3” (366 x 492 x 261 mm) |
| Drivers | Dual 8” (203mm) woofers + dual 2” (51mm) tweeters | 2x 6.5” woofers, 4x 2” full-range drivers, 2 passive radiators |
| Amplifier Power | 240W | 400W |
| Battery Life | 16 hours (Manufacturer specified) | 40+ hours (Manufacturer specified) |
| IP Rating | IPX4 | IP55 |
| Microphone Input | Yes (2 inputs, karaoke mode) | Yes (2x XLR/6.35mm combo) |
| Wireless Microphones | Yes 2 Included | - |
| Guitar Input | Yes | Yes |
| Power Input | AC Power cord | USB-C |
| Power Bank | Yes (USB-A) | Yes (USB-C) |
| Aux Input | Yes | Yes (3.5mm, RCA) |
| Removable Battery | No | Yes |
| Omnidirectional | No | Yes |
| Bluetooth | Yes | Yes |
| Bluetooth Codecs | SBC (inferred; additional codecs unverified) | SBC, AAC, LC3 |
| Lights | Yes | Yes |
| Wheels | Yes | No |
| App | Yes | Yes (Marshall Bluetooth app) |
| EQ | Yes | Yes |
| Stereo | Yes | Yes |
| TWS | Yes | No |
| Digital Aux Input | No | Yes (USB-C) |
| Strap | No | No |
| Frequency Response | - | 42Hz - 20kHz (Manufacturer specified) |
| Charging Time | - | 3.5 hours |
| Bluetooth Version | - | 5.3 |
| XLR Input | - | Yes (2x combo) |
| Party Mode | - | Yes (Auracast) |
| Built-in Microphone | - | No |
| USB Playback | - | No |
| Wi-Fi | - | No |
Related Speaker Comparisons
More worthwhile head-to-heads for Onn XL Wireless Party Speaker:
- Onn XL Wireless Party Speaker vs Sony ULT Tower 7
- JBL Partybox 330 vs Onn XL Wireless Party Speaker
- Onn XL Wireless Party Speaker vs JBL Partybox Stage 320
- JBL Partybox 310 vs Onn XL Wireless Party Speaker
- Onn XL Wireless Party Speaker vs Sony ULT Tower 5
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.
As an eBay Partner, we may be compensated if you make a purchase.
The Two Speakers In Full
Onn XL Wireless Party Speaker: $249.00 Walmart eBay
Pros: A compelling all-in-one party and karaoke package: dual 8-inch woofers, 240W claimed output, two included wireless microphones, dual mic/guitar inputs, karaoke effects and USB-A phone charging. It plays loudly enough for backyard use and has punchy bass; owners especially like the wheels, telescoping handle and colorful light effects. At 44 lb it is still a substantial cabinet, but the trolley design makes moving it far easier than carrying it.
Cons: Sound favors punch and a forward/bright top end over refinement. Independent comparisons and owner reports find the bass less deep and the overall balance less satisfying than the JBL PartyBox 320; several consider the far-cheaper Onn Large Party gen 2 the better sound-per-dollar buy. Some owners report distortion or static at high volume, and a few report wireless-mic pairing/dropout problems. Large (30 inches tall, 44 lb) and only IPX4 splash-resistant, not a speaker to leave out in rain.
Full Onn XL Wireless Party Speaker review and specifications →
| Amplifier Power | 240W |
|---|---|
| App | Yes |
| Aux Input | Yes |
| Battery Life | 16 hours (Manufacturer specified) |
| Bluetooth | Yes |
| Bluetooth Codecs | SBC (inferred; additional codecs unverified) |
| Digital Aux Input | No |
| Dimensions | 30.1”H x 15.7”W x 15.5”D (765.0 x 400.0 x 392.9 mm) |
| Drivers | Dual 8” (203mm) woofers + dual 2” (51mm) tweeters |
| EQ | Yes |
| Guitar Input | Yes |
| IP Rating | IPX4 |
| Lights | Yes |
| Microphone Input | Yes (2 inputs, karaoke mode) |
| Omnidirectional | No |
| Power Bank | Yes (USB-A) |
| Power Input | AC Power cord |
| Removable Battery | No |
| Stereo | Yes |
| Strap | No |
| TWS | Yes |
| Weight | 44 lbs (19.96 kg) |
| Wheels | Yes |
| Wireless Microphones | Yes 2 Included |
- Links
- Reviews, Comparisons and Sound Samples
- Jay’s Straight Up Reviews & More: ONN XL Party Speaker Review & Demo 😲 Is This The Next Big Thing In Party/Karaoke Speakers? More from JaysStraightUpReviews →
- Jay’s Straight Up Reviews & More: ONN XL Party Speaker vs. Two Large Gen. 2 Party Speakers. ONN With The Showdown🔌 Plugged In
- Jay’s Straight Up Reviews & More: ONN XL Party Speaker vs JBL Partybox 320. Outdoors, Battery Powered.
- Head-to-Head Comparisons
- Onn XL Wireless Party Speaker vs JBL Partybox 300
- Onn XL Wireless Party Speaker vs Zealot PT21
- Onn XL Wireless Party Speaker vs JBL Partybox 110
- Onn XL Wireless Party Speaker vs Sony SRS-XP700
- Onn XL Wireless Party Speaker vs JBL Partybox 100
- Onn XL Wireless Party Speaker vs Sony SRS-XP500
- Onn XL Wireless Party Speaker vs JBL Partybox 130
- Onn XL Wireless Party Speaker vs Sony SRS-XV500
- See all 67 comparisons
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 2
- Marshall Bromley 450 vs Onn Large Party gen 1
- 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