These sit in different size classes, so this is not a straight ranking comparison. The JBL Partybox 330 ranks #2 of 53 party speakers by sound quality at $629.95; the JBL Authentics 300 ranks #46 of 113 boombox speakers by sound quality at $299.95.
The JBL Partybox 330 is the longer-running, tougher pick. A rolling party speaker with deep bass, a removable battery, a light show and inputs for mics and a guitar. It is rated for 18 hours of battery against 8 for the JBL Authentics 300. It is rated IPX4, while the JBL Authentics 300 has no water resistance. It keeps a wired aux input, which the JBL Authentics 300 lacks. Watch for: It remains very large and heavy, and the sound improvement over the JBL Partybox Stage 320 is modest rather than transformational.
The JBL Authentics 300 is the lighter pick. A retro styled smart speaker with both Alexa and Google Assistant, a leather handle and battery power. At 10.8 lbs (4.9 kg) it weighs much less than the JBL Partybox 330 at 37.7 lbs (17.1 kg). The tradeoff: Narrow sounding, bass not as deep as others.
Buy the JBL Partybox 330 at $629.95 for a party speaker, or the JBL Authentics 300 at $299.95 for a boombox speaker instead.
Looking for alternatives? See the complete Portable Bluetooth rankings.
Prices on this page were last checked November 7, 2026 at 7:34 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
| JBL Partybox 330 | JBL Authentics 300 | |
|---|---|---|
| Price | $629.95 | $299.95 |
| Ranked | #2 of 53 in Party Size Portable Bluetooth Speakers | #46 of 113 in Boombox Size Portable Bluetooth Speakers |
| App | Yes | Yes |
| Aux Input | Yes | No |
| Battery Life | 18 hours (Manufacturer specified) | 8 hours (Manufacturer specified) |
| Bluetooth | Yes | Yes |
| Bluetooth Codecs | SBC | SBC |
| Bluetooth Version | 6.0 | 5.3 |
| Charging Time | 3 hours | - |
| Drivers | 2x 6.5” (165mm) woofers + 2x 1” (25mm) PEN dome tweeters | 1” tweeter + 4” woofer + passive radiators |
| EQ | Yes (Smart EQ mode) | Yes (App EQ) |
| Guitar Input | Yes | - |
| IP Rating | IPX4 | None |
| Microphone Input | Yes (Karaoke mode with echo effect) | - |
| Inputs | Optical | - |
| Party Mode | Yes (Auracast) | Yes (Wi-Fi Multi-Room) |
| Power Bank | Yes (USB-C, 5V/1A) | No |
| Power Input | AC Power cord | AC Power cable |
| Removable Battery | Yes | - |
| Stereo | Partially | Partially (1 woofer) |
| Omnidirectional | No | No |
| TWS | Yes | Yes |
| USB Playback | Yes | Yes |
| Weight | 37.7 lbs (17.1 kg) | 10.8 lbs (4.9 kg) |
| Amplifier Power | 280W | 100W |
| Digital Aux Input | No | No |
| Lights | Yes | - |
| Wheels | Yes | - |
| Dimensions | 26.1”H x 13.1”W x 14.8”D (662.5 x 334 x 375 mm) | 13.5” x 7.7” x 7.1” (342 x 195.6 x 180.3 mm) |
| Strap | No | No |
| Bass Extension (-10dB) | - | 45Hz |
| Maximum SPL | - | 100dB (measured by Alan Ross Reviews) |
| Wi-Fi | - | Yes |
| Built-in Microphone | - | Yes |
| MicroSD Playback | - | No |
| Voice Assistants | - | Amazon Alexa & Google Assistant (simultaneous) |
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