Short answer: the JBL Partybox Encore 2. It ranks #4 of 113 boombox speakers by sound quality, rated 4.4/5, at $330. The Gemini GRV-650L ranks #56, rated 3.3/5, at $149.95, $180.05 cheaper, which does not close the gap in sound quality.
The JBL Partybox Encore 2 is the better-sounding, deeper-bass option. A compact karaoke party speaker with two wireless mics, better balanced sound than the original and a long battery. Its bass reaches about 42Hz before falling 10dB, against 47Hz for the Gemini GRV-650L. It is rated for 15 hours of battery against 9 for the Gemini GRV-650L. It links with other speakers (Auracast), which the Gemini GRV-650L cannot. The catch: It still lacks some upper-bass punch and cannot match the scale of the larger PartyBoxes.
What the Gemini GRV-650L does well: A great value party speaker with an included wireless mic, remote, FM radio and water resistance. Watch for: Not quite as deep bass as the top ranked speakers.
Buy the JBL Partybox Encore 2. It is rated higher for sound quality, and the $180.05 you would save on the Gemini GRV-650L does not close the gap.
Still deciding? The full Portable Bluetooth rankings cover every ranked option.
Prices on this page were last checked November 14, 2026 at 6:17 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 Encore 2 | Gemini GRV-650L | |
|---|---|---|
| Price | $330 | $149.95 |
| Ranked | #4 of 113 in Boombox Size Portable Bluetooth Speakers | #56 of 113 in Boombox Size Portable Bluetooth Speakers |
| App | Yes (JBL PartyBox app) | No |
| Aux Input | Yes | Yes |
| Battery Life | 15 hours (Manufacturer specified) | 9 hours (Manufacturer specified) |
| Built-in Microphone | No | No |
| EQ | Yes (7 band App EQ) | No |
| IP Rating | IPX4 | IPX5 |
| Maximum SPL | 110dB (measured by Alan Ross Reviews) | 104dB (Manufacturer specified) |
| Party Mode | Yes (Auracast) | No |
| Power Bank | Yes (USB-C) | Yes |
| Power Input | AC Power cord | USB-C |
| Removable Battery | Yes | - |
| Stereo | Yes | Partially (1 woofer) |
| Omnidirectional | No | No |
| TWS | Yes | Yes |
| USB Playback | Yes | Yes |
| Weight | 14.1 lbs (6.4 kg) | 15.7 lbs (7.1 kg) |
| Wireless Microphones | Yes 2 Included | - |
| Bluetooth | Yes | Yes |
| Bluetooth Codecs | SBC | SBC |
| Bluetooth Version | 5.4 | 5.3 |
| Amplifier Power | 100W RMS | 320W |
| Dimensions | 12.6” x 13.3” x 10.4” (319.5 x 338.6 x 263 mm) | 10.9” x 10.2” x 14.4” (277 x 260 x 366 mm) |
| Drivers | 1x 135mm (5.25”) woofer + 2x 20mm (0.75”) dome tweeters | 6.5” woofer + tweeter |
| Digital Aux Input | No | No |
| Lights | Yes | - |
| Strap | No | No |
| Bass Extension (-10dB) | 42Hz | ~47Hz |
| MicroSD Playback | - | Yes |
| FM Tuner | - | Yes |
Where the Ratings Come From
- JBL Partybox Encore 2: reviews by JOY‘s 🎧3D🔈Audio-Show, Alan Ross and M1MTechChannel.
- Gemini GRV-650L: reviews by Jagist.
This comparison is generated from the ratings, specifications and measurements on each product’s own page, and it updates when that data changes. How we rank explains how each rating is decided.
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