Short answer: the Onn Large Party gen 2 on value, the Diamondboxx L2 on battery runtime. The L2’s Class A/B amps fill large spaces at under 50% volume with a claimed 6-48 hour battery depending on output, but our notes describe boominess around 100Hz, distortion and too much treble for the price. The Onn costs a fraction of the price with karaoke mic and guitar inputs and wheels, though Consumer Reports found its own bass boomy and treble smeared.
L2’s Class A/B amps fill large spaces at under 50% volume with a claimed 6-48 hour battery depending on output, but our notes describe boominess around 100Hz, distortion, and too much treble for the price.
Onn Large Party gen 2 costs a fraction of the price with karaoke mic/guitar inputs and wheels of its own, though Consumer Reports found its own bass boomy and treble smeared.
Buy the Onn Large Party gen 2 for a fraction of the price and comparable tonal issues. Buy the Diamondboxx L2 only if its extreme battery runtime at high output specifically matters to your use case.
Battery life favors the Diamondboxx L2: rated for 48 hours against 12 hours for the Onn Large Party gen 2.
If water resistance matters to you, the Onn Large Party gen 2 at IPX4 (splashing) holds up far better than the Diamondboxx L2 at no water resistance.
Want more options? Browse the full Portable Bluetooth rankings.
A budget party speaker on wheels with real bass impact, karaoke inputs and an FM radio.
A heavy boombox style party speaker that fills large spaces, with a very long battery and USB charging for phones.
Prices on this page were last checked October 24, 2026 at 4:42 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
| Onn Large Party gen 2 | Diamondboxx L2 | |
|---|---|---|
| Price | $129 | $1,000 Discontinued |
| Ranked | #17 of 50 in Party Size Portable Bluetooth Speakers | #36 of 50 in Party Size Portable Bluetooth Speakers |
| Aux Input | Yes | Yes |
| Battery Life | 12 hours (Manufacturer specified) | 6-48 hours (Manufacturer specified) |
| FM Tuner | Yes | - |
| Guitar Input | Yes | - |
| IP Rating | IPX4 | None |
| Microphone Input | Yes (Karaoke mode with echo effect) | - |
| Party Mode | Yes (Party Sync Mode) | No |
| Power Bank | Yes (USB-A, 5V/2.1A) | No |
| Power Input | AC Power cord | AC Power brick |
| Stereo | Partially | Yes |
| Omnidirectional | No | No |
| Weight | 20.9 lbs (9.5 kg) | 24.3 lbs (11 kg) |
| Bluetooth | Yes | Yes |
| Bluetooth Codecs | SBC | aptX HD, SBC |
| App | No | No |
| EQ | No | No |
| TWS | No | No |
| USB Playback | No | No |
| Drivers | Dual 8” (203mm) woofers + dual tweeters | 5.5” woofer, 1” tweeter |
| Digital Aux Input | No | No |
| Lights | Yes | - |
| Wheels | Yes | - |
| Dimensions | 22.5”H x 11.6”W x 11.8”D (571 x 295 x 300 mm) | 23” x 14.5” x 9.5” (584.2 x 368.3 x 241.3 mm) |
| Amplifier Power | 160W RMS (640W peak) | 260W RMS |
| Strap | No | - |
| Bluetooth Version | - | 4.2 |
| Charging Time | - | 9 hours |
| Frequency Response | - | 40Hz - 22kHz (Manufacturer specified) |
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