Short answer: the JBL Partybox Stage 320. It ranks #3 of 51 party speakers by sound quality (rated 4.6/5) at $499.95 and is still sold new; the Diamondboxx L2 ranks #37 (rated 2.9/5) and is discontinued, so it is only an option used.
The JBL Partybox Stage 320 is the better-sounding, tougher choice. An excellent sounding party speaker, with deep bass that holds up at high volume, wheels, a removable battery and mic inputs. It is rated IPX4, while the Diamondboxx L2 has no water resistance. It links with other speakers (Auracast), which the Diamondboxx L2 cannot. It has an adjustable EQ, which the Diamondboxx L2 lacks. The tradeoff: Slightly sibilant in the treble at full blast.
The Diamondboxx L2 is the longer-running, lighter option. A heavy boombox style party speaker that fills large spaces, with a very long battery and USB charging for phones. It is rated for 48 hours of battery against 18 for the JBL Partybox Stage 320. At 24.3 lbs (11 kg) it weighs noticeably less than the JBL Partybox Stage 320 at 36.4 lbs (16.5 kg). It supports aptX HD Bluetooth, which the JBL Partybox Stage 320 lacks. The tradeoff: Boomyness in the 100Hz region.
Buy the JBL Partybox Stage 320. It is rated higher for sound quality; the Diamondboxx L2 is no longer sold new.
Want more options? Browse the full Portable Bluetooth rankings.
An excellent sounding party speaker, with deep bass that holds up at high volume, wheels, a removable battery and mic inputs.
A heavy boombox style party speaker that fills large spaces, with a very long battery and USB charging for phones.
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Specifications Side By Side
| JBL Partybox Stage 320 | Diamondboxx L2 | |
|---|---|---|
| Price | $499.95 | $1,000 Discontinued |
| Ranked | #3 of 51 in Party Size Portable Bluetooth Speakers | #37 of 51 in Party Size Portable Bluetooth Speakers |
| App | Yes | No |
| Aux Input | Yes | Yes |
| Battery Life | 18 hours (Manufacturer specified) | 6-48 hours (Manufacturer specified) |
| Bluetooth | Yes | Yes |
| Bluetooth Codecs | SBC | aptX HD, SBC |
| Bluetooth Version | 5.4 | 4.2 |
| Drivers | 2x 6.5” woofers, 2x 25mm tweeters | 5.5” woofer, 1” tweeter |
| EQ | Yes (5 band) | No |
| Guitar Input | Yes | - |
| IP Rating | IPX4 | None |
| Microphone Input | Yes (Karaoke mode with echo effect) | - |
| Party Mode | Yes (Auracast) | No |
| Power Bank | Yes (USB-A, 5V/2.1A) | No |
| Power Input | AC Power cord | AC Power brick |
| Removable Battery | Yes | - |
| Stereo | Partially | Yes |
| Omnidirectional | No | No |
| TWS | Yes | No |
| USB Playback | Yes | No |
| Weight | 36.4 lbs (16.5 kg) | 24.3 lbs (11 kg) |
| Amplifier Power | 240W | 260W RMS |
| Digital Aux Input | No | No |
| Lights | Yes | - |
| Wheels | Yes | - |
| Dimensions | 26.3”H x 13.2”W x 15.2”D (669 x 335 x 385 mm) | 23” x 14.5” x 9.5” (584.2 x 368.3 x 241.3 mm) |
| Strap | No | - |
| Charging Time | - | 9 hours |
| Frequency Response | - | 40Hz - 22kHz (Manufacturer specified) |
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