Short answer: the JBL Authentics 300 for better sound quality, the Onn Medium Party Speaker Gen 2 for the lower price. The JBL Authentics 300 ranks #46 of 112 boombox speakers, rated 3.5/5, at $299.95. The Onn Medium Party Speaker Gen 2 ranks #65, rated 3.1/5, at $90, $209.95 cheaper.
The JBL Authentics 300 is the better-sounding choice. A retro styled smart speaker with both Alexa and Google Assistant, a leather handle and battery power. It has an adjustable EQ, which the Onn Medium Party Speaker Gen 2 lacks. The tradeoff: Narrow sounding, bass not as deep as others.
The Onn Medium Party Speaker Gen 2 is the longer-running, tougher pick. An affordable waterproof party speaker with a big woofer, lights, a karaoke mic input and FM radio. It is rated for 20 hours of battery against 8 for the JBL Authentics 300. It is rated IPX7, while the JBL Authentics 300 has no water resistance. It keeps a wired aux input, which the JBL Authentics 300 lacks. Watch for: Lacking detail compared to the Onn Large Party gen 2 and not as deep of bass.
Buy the JBL Authentics 300 when sound quality outweighs the price for you, and the Onn Medium Party Speaker Gen 2 when the price outweighs sound quality instead.
Looking for alternatives? See the complete Portable Bluetooth rankings.
A retro styled smart speaker with both Alexa and Google Assistant, a leather handle and battery power.
An affordable waterproof party speaker with a big woofer, lights, a karaoke mic input and FM radio.
Prices on this page were last checked October 31, 2026 at 7:11 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 Authentics 300 | Onn Medium Party Speaker Gen 2 | |
|---|---|---|
| Price | $299.95 | $90 |
| Ranked | #46 of 112 in Boombox Size Portable Bluetooth Speakers | #65 of 112 in Boombox Size Portable Bluetooth Speakers |
| App | Yes | No |
| Bass Extension (-10dB) | 45Hz | - |
| Battery Life | 8 hours (Manufacturer specified) | 20 hours (Manufacturer specified) |
| EQ | Yes (App EQ) | No |
| IP Rating | None | IPX7 |
| Maximum SPL | 100dB (measured by Alan Ross Reviews) | - |
| Party Mode | Yes (Wi-Fi Multi-Room) | Yes (Party Sync Mode) |
| Power Input | AC Power cable | AC Power cord |
| Stereo | Partially (1 woofer) | No |
| Omnidirectional | No | No |
| TWS | Yes | Yes |
| Weight | 10.8 lbs (4.9 kg) | 11 lbs (5 kg) |
| Wi-Fi | Yes | - |
| Bluetooth | Yes | Yes |
| Bluetooth Codecs | SBC | SBC |
| Power Bank | No | Yes (USB-A, 5V/2.1A) |
| USB Playback | Yes | No |
| Built-in Microphone | Yes | No |
| MicroSD Playback | No | - |
| Aux Input | No | Yes |
| Amplifier Power | 100W | 50W RMS / 200W peak |
| Dimensions | 13.5” x 7.7” x 7.1” (342 x 195.6 x 180.3 mm) | 9.6” x 10.9” x 15.1” (244.1 x 277.9 x 383 mm) |
| Drivers | 1” tweeter + 4” woofer + passive radiators | 8” (203mm) woofer + tweeters |
| Digital Aux Input | No | No |
| Bluetooth Version | 5.3 | - |
| Voice Assistants | Amazon Alexa & Google Assistant (simultaneous) | - |
| Strap | No | - |
| FM Tuner | - | Yes (16 presets) |
| Microphone Input | - | Yes (Karaoke mode with echo effect) |
| Lights | - | Yes |
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