Short answer: the Zealot ZE41 for bass, play time and volume per dollar, if you can lift it. It is the absolute best value for bass performance, play time and max volume in the boombox class, but it is also the heaviest and biggest boombox around. The Middleton reaches very deep bass for its size and weight, though a 5db dip at 1.7kHz and 6.3kHz keeps its response uneven.
Buy the Marshall Middleton ($257.52) for a large speaker; the Zealot ZE41 ($219.95) suits a boombox speaker instead.
There is a real battery-life gap here: the Marshall Middleton is rated for 20 hours, the Zealot ZE41 only 4 hours.
Still deciding? The full Portable Bluetooth rankings cover every ranked option.
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
| Marshall Middleton | Zealot ZE41 | |
|---|---|---|
| Price | $257.52 | $219.95 |
| Ranked | #33 of 120 in Large Size Portable Bluetooth Speakers | #17 of 113 in Boombox Size Portable Bluetooth Speakers |
| Aux Input | Yes | Yes |
| Bass Extension (-10dB) | 39Hz | - |
| Battery Life | 20 hours (Manufacturer specified) | 4 hours (Manufacturer specified) |
| Maximum SPL | 99dB (measured by Alan Ross Reviews) | - |
| Party Mode | Yes (Marshall Stack) | Yes (PartyAdd up to 100 speakers) |
| Power Bank | Yes (USB-C) | Yes (USB-A + USB-C) |
| Weight | 4 lbs (1.8 kg) | 25.3 lbs (11.48 kg) |
| App | No | Yes |
| Bluetooth | Yes | Yes |
| Bluetooth Codecs | SBC | SBC (inferred; additional codecs unverified) |
| Built-in Microphone | Yes | - |
| EQ | No | Yes (Vocal, Bass Boost, Normal modes) |
| IP Rating | IPX7 | IPX5 |
| Power Input | USB-C | Type-C |
| Stereo | Yes | Yes |
| Omnidirectional | No | No |
| TWS | Yes | Yes |
| Bluetooth Version | 5.1 | 5.3 |
| Dimensions | 9.1” x 3.7” x 4.3” (230 x 95 x 109 mm) | 22.1” x 9.4” x 13” (562 x 238 x 331 mm) |
| Drivers | 2x 75mm woofers, 2x 0.625” tweeters + 2x passive radiators | 191x130mm 140W subwoofer + 2x 93mm 60W midrange drivers + 2x 42mm 20W tweeters |
| Frequency Response | 50Hz - 20kHz (Manufacturer specified) | 20Hz - 20kHz (Manufacturer specified) |
| Amplifier Power | 50W | 300W |
| Digital Aux Input | No | No |
| Strap | Yes (detachable strap) | No |
| Battery Capacity | - | 48000mAh (12x4000mAh) |
| Microphone Input | - | Yes (Karaoke mode) |
| MicroSD Playback | - | Yes |
| USB Playback | - | Yes |
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