Short answer: the JBL Partybox Encore Essential. It ranks #8 of 89 boombox speakers by sound quality, rated 4.2/5, at $329.95. The Monster Rockin’ Roller 270 ranks #82, rated 2.1/5, at $249, $80.95 cheaper, not enough of a saving to outweigh the sound-quality gap.
What the JBL Partybox Encore Essential does well: JBL Partybox Encore Essential uses 135mm woofer + 2x 44mm tweeters. Watch for: Bass is limited by its 38Hz specification.
Why pick the Monster Rockin’ Roller 270: 100 hour battery life. The tradeoff: Bass not as deep as competitors, less neutral than ION speakers.
Buy the JBL Partybox Encore Essential. It is rated higher for sound quality, and the $80.95 you would save on the Monster Rockin’ Roller 270 does not close the gap.
Want more options? Browse the full Portable Bluetooth rankings.
Specifications Side By Side
| JBL Partybox Encore Essential | Monster Rockin’ Roller 270 | |
|---|---|---|
| Price | $329.95 | $249.00 |
| Ranked | #8 of 89 in Boombox Size Portable Bluetooth Speakers | #82 of 89 in Boombox Size Portable Bluetooth Speakers |
| App | Yes (JBL PartyBox app) | Yes (Monster Zone Control app) |
| Aux Input | Yes | Yes |
| Aux Latency | 17ms | - |
| Bass Extension (-10dB) | 38Hz | 53Hz |
| Battery Life | 6 hours (Manufacturer specified) | 100 hours (Manufacturer specified) |
| Bluetooth | Yes | Yes |
| Bluetooth Codecs | SBC | SBC |
| Built-in Microphone | No | No |
| EQ | Yes (3 band App EQ) | Yes |
| IP Rating | IPX4 | IPX4 |
| Bluetooth Latency | 100ms | - |
| Party Mode | Yes (PartyBoost up to 100 speakers) | No |
| Power Bank | Yes (USB-A, 5V/0.5A) | Yes (USB-A, 5V/2.1A) |
| Power Input | AC Power cord | USB-C |
| Stereo | Yes | No |
| Omnidirectional | No | No |
| TWS | Yes | Yes |
| USB Playback | Yes | No |
| Weight | 13 lbs (5.9 kg) | 28.7 lbs (13 kg) |
| Bluetooth Version | 5.1 | 5.0 |
| Amplifier Power | 100W RMS | 200W |
| Dimensions | 10.9” x 12.9” x 11.5” (276 x 327 x 293 mm) | 15” x 18.6” x 10.9” (381 x 472 x 276 mm) |
| Drivers | 135mm woofer + 2x 44mm tweeters | 2x 3” (76mm) woofers + 2x tweeters (size undisclosed) |
| Maximum SPL | 110dB (measured by Alan Ross Reviews) | 96dB (Manufacturer specified) |
| Digital Aux Input | No | No |
| Strap | No | No |
| FM Tuner | - | Yes |
| Wheels | - | Yes |
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- JBL Partybox Encore Essential 2 vs JBL Partybox Encore Essential
Prices on this page were last checked September 30, 2026 at 2:57 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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The Two Speakers In Full
JBL Partybox Encore Essential: $329.95 Amazon eBay
Newer model: the JBL Partybox Encore Essential 2, ranked higher, rated 4.3/5.
Pros: JBL Partybox Encore Essential uses 135mm woofer + 2x 44mm tweeters. Its 5.9 kg, claimed 6 hours (Manufacturer specified) battery life, IPX4 protection, aux input, up to 110dB and stereo playback make it a practical option for its intended room or portable use. Measured bass extension of 38Hz (-10dB).
Cons: Bass is limited by its 38Hz specification.
Full JBL Partybox Encore Essential review and specifications →
| Amplifier Power | 100W RMS |
|---|---|
| App | Yes (JBL PartyBox app) |
| Aux Input | Yes |
| Aux Latency | 17ms |
| Bass Extension (-10dB) | 38Hz |
| Battery Life | 6 hours (Manufacturer specified) |
| Bluetooth | Yes |
| Bluetooth Codecs | SBC |
| Bluetooth Latency | 100ms |
| Bluetooth Version | 5.1 |
| Built-in Microphone | No |
| Digital Aux Input | No |
| Dimensions | 10.9” x 12.9” x 11.5” (276 x 327 x 293 mm) |
| Drivers | 135mm woofer + 2x 44mm tweeters |
| EQ | Yes (3 band App EQ) |
| IP Rating | IPX4 |
| Maximum SPL | 110dB (measured by Alan Ross Reviews) |
| Omnidirectional | No |
| Party Mode | Yes (PartyBoost up to 100 speakers) |
| Power Bank | Yes (USB-A, 5V/0.5A) |
| Power Input | AC Power cord |
| Stereo | Yes |
| Strap | No |
| TWS | Yes |
| USB Playback | Yes |
| Weight | 13 lbs (5.9 kg) |
- Links
- Reviews, Comparisons and Sound Samples
- Alan Ross Reviews: JBL giving it to us large! The good, The bad, The diabolical! More from alanrossreviews →
- DLX Willington: Called It!🤣 JBL Partybox Encore VS Essential, with binaural sound sample. More from DLXWillington →
- Jay’s Straight Up Reviews & More: Triple Threat 💸 $200 Challenge 🔋 Soundcore Rave Party 2, W-King H10, JBL Partybox Encore Essential More from JaysStraightUpReviews →
- Jay’s Straight Up Reviews & More: Klipsch Gig XXL vs JBL Partybox Encore Essential (Pee-Wee) - Indoors, Plugged In🔌 Bluetooth Speakers
- Head-to-Head Comparisons
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- JBL Partybox Encore Essential vs JBL Partybox Encore 2
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- See all 76 comparisons
Monster Rockin’ Roller 270: $249.00 Amazon eBay
Pros: 100 hour battery life. 270° sound coverage, stereo output. IPX4 weather-resistant. Wheels and integrated handle. Qi wireless charging pad for your phone. TWS pairing with another 270. Measured bass extension of 53Hz (-10dB).
Cons: Bass not as deep as competitors, less neutral than ION speakers. Very heavy
Full Monster Rockin’ Roller 270 review and specifications →
| Amplifier Power | 200W |
|---|---|
| App | Yes (Monster Zone Control app) |
| Aux Input | Yes |
| Bass Extension (-10dB) | 53Hz |
| Battery Life | 100 hours (Manufacturer specified) |
| Bluetooth | Yes |
| Bluetooth Codecs | SBC |
| Bluetooth Version | 5.0 |
| Built-in Microphone | No |
| Digital Aux Input | No |
| Dimensions | 15” x 18.6” x 10.9” (381 x 472 x 276 mm) |
| Drivers | 2x 3” (76mm) woofers + 2x tweeters (size undisclosed) |
| EQ | Yes |
| FM Tuner | Yes |
| IP Rating | IPX4 |
| Maximum SPL | 96dB (Manufacturer specified) |
| Omnidirectional | No |
| Party Mode | No |
| Power Bank | Yes (USB-A, 5V/2.1A) |
| Power Input | USB-C |
| Stereo | No |
| Strap | No |
| TWS | Yes |
| USB Playback | No |
| Weight | 28.7 lbs (13 kg) |
| Wheels | Yes |
- Links
- Reviews, Comparisons and Sound Samples
- Head-to-Head Comparisons
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