Short answer: the JBL Partybox Encore 2. It ranks #4 of 113 boombox speakers by sound quality, rated 4.4/5, at $330. The Monster Rockin’ Roller 270 ranks #104, rated 2.1/5, at $208.99, $121.01 cheaper, which does not close the gap in sound quality.
The JBL Partybox Encore 2 is the better-sounding, deeper-bass choice. 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 53Hz for the Monster Rockin’ Roller 270. At 14.1 lbs (6.4 kg) it weighs much less than the Monster Rockin’ Roller 270 at 28.7 lbs (13 kg). It links with other speakers (Auracast), which the Monster Rockin’ Roller 270 cannot. The catch: It still lacks some upper-bass punch and cannot match the scale of the larger PartyBoxes.
The Monster Rockin’ Roller 270 is the longer-running choice. A wheeled party speaker with an enormous battery, sound spread wide around it and a wireless phone charging pad. It is rated for 100 hours of battery against 15 for the JBL Partybox Encore 2. The catch: Bass not as deep as competitors, less neutral than ION speakers.
Buy the JBL Partybox Encore 2. It is rated higher for sound quality, and saving $121.01 with the Monster Rockin’ Roller 270 does not make up for the sound-quality gap.
Looking for alternatives? See the complete Portable Bluetooth rankings.
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 | Monster Rockin’ Roller 270 | |
|---|---|---|
| Price | $330 | $208.99 |
| Ranked | #4 of 113 in Boombox Size Portable Bluetooth Speakers | #104 of 113 in Boombox Size Portable Bluetooth Speakers |
| App | Yes (JBL PartyBox app) | Yes (Monster Zone Control app) |
| Aux Input | Yes | Yes |
| Battery Life | 15 hours (Manufacturer specified) | 100 hours (Manufacturer specified) |
| Built-in Microphone | No | No |
| EQ | Yes (7 band App EQ) | Yes |
| IP Rating | IPX4 | IPX4 |
| Maximum SPL | 110dB (measured by Alan Ross Reviews) | 96dB (Manufacturer specified) |
| Party Mode | Yes (Auracast) | No |
| Power Bank | Yes (USB-C) | Yes (USB-A, 5V/2.1A) |
| Power Input | AC Power cord | USB-C |
| Removable Battery | Yes | - |
| Stereo | Yes | No |
| Omnidirectional | No | No |
| TWS | Yes | Yes |
| USB Playback | Yes | No |
| Weight | 14.1 lbs (6.4 kg) | 28.7 lbs (13 kg) |
| Wireless Microphones | Yes 2 Included | - |
| Bluetooth | Yes | Yes |
| Bluetooth Codecs | SBC | SBC |
| Bluetooth Version | 5.4 | 5.0 |
| Amplifier Power | 100W RMS | 200W |
| Dimensions | 12.6” x 13.3” x 10.4” (319.5 x 338.6 x 263 mm) | 15” x 18.6” x 10.9” (381 x 472 x 276 mm) |
| Drivers | 1x 135mm (5.25”) woofer + 2x 20mm (0.75”) dome tweeters | 2x 3” (76mm) woofers + 2x tweeters (size undisclosed) |
| Digital Aux Input | No | No |
| Lights | Yes | - |
| Strap | No | No |
| Bass Extension (-10dB) | 42Hz | 53Hz |
| FM Tuner | - | Yes |
| Wheels | - | Yes |
Where the Ratings Come From
- JBL Partybox Encore 2: reviews by JOY‘s 🎧3D🔈Audio-Show, Alan Ross and M1MTechChannel.
- Monster Rockin’ Roller 270: reviews by Charles BridgTec and Wanna Buy It.
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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