Different classes, so treat this as a step-up-or-not question rather than a head-to-head. The Marshall Bromley 150 ranks #47 of 102 large speakers by sound quality at $499.99; the Marshall Bromley 450 ranks #24 of 44 party speakers by sound quality at $649.95.
The Marshall Bromley 150 is the lighter pick. The smallest and lightest Bromley at 13.9 lbs (6.3 kg), with a carry handle, a 6.5-inch woofer, two 2-inch full-range drivers and a passive radiator driven by 200W of amplification, rated at 97dB. At 13.9 lbs (6.3 kg) it weighs much less than the Marshall Bromley 450 at 27.1 lbs (12.3 kg). Watch for: Newly announced and not yet reviewed, so its sound can’t be compared with ranked party speakers.
The case for the Marshall Bromley 450: A balanced, warm sound with a flat midrange that keeps vocals and instruments clear, plenty of bass rumble and enough treble for energetic vocals, per RTINGS’ lab tests. The tradeoff: It is the quietest of its rivals: both the Soundboks Mix and Teufel Rockster Air 2 play louder, and near max volume the bass recedes and the sound gets less composed.
Buy the Marshall Bromley 150 ($499.99) for a large speaker; the Marshall Bromley 450 ($649.95) suits a party speaker instead.
Looking for alternatives? See the complete Portable Bluetooth rankings.
Specifications Side By Side
| Marshall Bromley 150 | Marshall Bromley 450 | |
|---|---|---|
| Price | $499.99 each | $649.95 |
| Ranked | #47 of 102 in Large Size Portable Bluetooth Speakers | #24 of 44 in Party Size Portable Bluetooth Speakers |
| Amplifier Power | 200W (90W woofer, 2x 55W full-range) | 400W |
| Drivers | 6.5” woofer, 2x 2” full-range drivers, 7.5” passive radiator | 2x 6.5” woofers, 4x 2” full-range drivers, 2 passive radiators |
| Frequency Response | 42Hz - 20kHz (Manufacturer specified) | 42Hz - 20kHz (Manufacturer specified) |
| Maximum SPL | 97dB @ 1m (Manufacturer specified) | - |
| Battery Life | 40+ hours (Manufacturer specified) | 40+ hours (Manufacturer specified) |
| Charging Time | 3 hours | 3.5 hours |
| Removable Battery | Yes | Yes |
| IP Rating | IP55 | IP55 |
| Bluetooth | Yes | Yes |
| Bluetooth Version | 5.3 | 5.3 |
| Bluetooth Codecs | SBC, AAC, LC3 | SBC, AAC, LC3 |
| Aux Input | Yes (3.5mm in/out) | Yes (3.5mm, RCA) |
| Microphone Input | Yes (2x XLR/6.35mm combo) | Yes (2x XLR/6.35mm combo) |
| XLR Input | Yes (2x combo) | Yes (2x combo) |
| Guitar Input | Yes | Yes |
| Power Bank | Yes (USB-C, 5V/3A) | Yes (USB-C) |
| App | Yes (Marshall Bluetooth app) | Yes (Marshall Bluetooth app) |
| EQ | Yes | Yes |
| Party Mode | Yes (Auracast) | Yes (Auracast) |
| Lights | Yes | Yes |
| Wi-Fi | No | No |
| Wheels | No | No |
| Strap | No | No |
| Stereo | Partially | Yes |
| Weight | 13.9 lbs (6.3 kg) | 27.1 lbs (12.3 kg) |
| Dimensions | 11.7”H x 11.4”W x 8.2”D (297 x 290 x 208 mm) | 14.4” x 19.4” x 10.3” (366 x 492 x 261 mm) |
| Digital Aux Input | - | Yes (USB-C) |
| Power Input | - | USB-C |
| Built-in Microphone | - | No |
| USB Playback | - | No |
| TWS | - | No |
| Omnidirectional | - | Yes |
Related Speaker Comparisons
More worthwhile head-to-heads for Marshall Bromley 150:
- JBL Partybox 100 vs Marshall Bromley 450
- JBL Partybox Stage 320 vs Marshall Bromley 450
- Sony SRS-XP500 vs Marshall Bromley 450
- JBL Partybox 310 vs Marshall Bromley 450
- JBL Partybox 130 vs Marshall Bromley 450
Prices on this page were last checked October 4, 2026 at 9:58 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
Marshall Bromley 150: $499.99 each Estimated Marshall eBay
Pros: The smallest and lightest Bromley at 6.3kg, with a carry handle, a 6.5-inch woofer, two 2-inch full-range drivers and a passive radiator driven by 200W of amplification, rated at 97dB. A removable LiFePO4 battery is rated for 40+ hours, recharges in about 3 hours and can be swapped for a spare. Two XLR/6.35mm combo inputs each have their own volume and effects controls for microphones or instruments, and it adds IP55 dust and water resistance, Auracast, Bluetooth 5.3 with AAC and LC3, a USB-C power bank output and built-in stage lighting.
Cons: Newly announced and not yet reviewed, so its sound can’t be compared with ranked party speakers. Marshall rates it at 97dB, well short of its bigger Bromley siblings, and at $499.99 it costs as much as some larger party speakers with more output.
Full Marshall Bromley 150 review and specifications →
| Amplifier Power | 200W (90W woofer, 2x 55W full-range) |
|---|---|
| App | Yes (Marshall Bluetooth app) |
| Aux Input | Yes (3.5mm in/out) |
| Battery Life | 40+ hours (Manufacturer specified) |
| Bluetooth | Yes |
| Bluetooth Codecs | SBC, AAC, LC3 |
| Bluetooth Version | 5.3 |
| Charging Time | 3 hours |
| Dimensions | 11.7”H x 11.4”W x 8.2”D (297 x 290 x 208 mm) |
| Drivers | 6.5” woofer, 2x 2” full-range drivers, 7.5” passive radiator |
| EQ | Yes |
| Frequency Response | 42Hz - 20kHz (Manufacturer specified) |
| Guitar Input | Yes |
| IP Rating | IP55 |
| Lights | Yes |
| Maximum SPL | 97dB @ 1m (Manufacturer specified) |
| Microphone Input | Yes (2x XLR/6.35mm combo) |
| Party Mode | Yes (Auracast) |
| Power Bank | Yes (USB-C, 5V/3A) |
| Removable Battery | Yes |
| Stereo | Partially |
| Strap | No |
| Weight | 13.9 lbs (6.3 kg) |
| Wheels | No |
| Wi-Fi | No |
| XLR Input | Yes (2x combo) |
- Links
- Reviews, Comparisons and Sound Samples
- No independent measurement review is linked for this model; it is ranked from hands-on listening and comparison against similarly priced speakers.
- Head-to-Head Comparisons
Marshall Bromley 450: $649.95 Amazon B&H Photo Video eBay
Pros: A balanced, warm sound with a flat midrange that keeps vocals and instruments clear, plenty of bass rumble and enough treble for energetic vocals, per RTINGS’ lab tests. Drivers on all four sides keep the tonal balance nearly the same from any angle, and M1M Tech Channel found it more open and airy than the Soundboks Mix and Teufel Rockster Air 2, with deeper bass than both. RTINGS measured 18.8 hours of battery from a swappable LiFePO4 pack shared with the Bromley 750, and it adds IP55 protection, two XLR/6.35mm combo inputs, USB-C audio, Auracast and physical bass and treble knobs.
Cons: It is the quietest of its rivals: both the Soundboks Mix and Teufel Rockster Air 2 play louder, and near max volume the bass recedes and the sound gets less composed. The warm tuning lacks some fine treble detail. There is no graphic EQ, only bass and treble knobs, and its stereo spreads left and right channels around the cabinet, so panned elements can land on the wrong side. At 12.3 kg it has a carry handle but no wheels.
Full Marshall Bromley 450 review and specifications →
| Amplifier Power | 400W |
|---|---|
| App | Yes (Marshall Bluetooth app) |
| Aux Input | Yes (3.5mm, RCA) |
| Battery Life | 40+ hours (Manufacturer specified) |
| Bluetooth | Yes |
| Bluetooth Codecs | SBC, AAC, LC3 |
| Bluetooth Version | 5.3 |
| Built-in Microphone | No |
| Charging Time | 3.5 hours |
| Digital Aux Input | Yes (USB-C) |
| Dimensions | 14.4” x 19.4” x 10.3” (366 x 492 x 261 mm) |
| Drivers | 2x 6.5” woofers, 4x 2” full-range drivers, 2 passive radiators |
| EQ | Yes |
| Frequency Response | 42Hz - 20kHz (Manufacturer specified) |
| Guitar Input | Yes |
| IP Rating | IP55 |
| Lights | Yes |
| Microphone Input | Yes (2x XLR/6.35mm combo) |
| Omnidirectional | Yes |
| Party Mode | Yes (Auracast) |
| Power Bank | Yes (USB-C) |
| Power Input | USB-C |
| Removable Battery | Yes |
| Stereo | Yes |
| Strap | No |
| TWS | No |
| USB Playback | No |
| Weight | 27.1 lbs (12.3 kg) |
| Wheels | No |
| Wi-Fi | No |
| XLR Input | Yes (2x combo) |
- Links
- Reviews, Comparisons and Sound Samples
- RTINGS: Marshall Bromley 450 Review More from Rtings.com →
- M1M Tech Channel: The best in its class? Marshall Bromley 450 vs. Soundboks & Teufel More from M1MTechChannel →
- HeadphoneCheck: Marshall Bromley 450 test
- Tom’s Guide: Marshall Bromley 450 vs Bromley 750 face-off
- Smart Home Sounds: Marshall Bromley 450 review More from Smart Home Sounds →
- Storytripper HD: JBL Partybox 120 vs Marshall Bromley 450 (Indoor) More from storytripperhd →
- Storytripper HD: Marshall Bromley 450 vs Marshall Bromley 750 (outdoor)
- Storytripper HD: Marshall Woburn III vs Marshall Bromley 450
- Head-to-Head Comparisons
- Marshall Bromley 450 vs Klipsch Gig XXL
- Marshall Bromley 450 vs Samsung MX-ST50B
- Marshall Bromley 450 vs Soundboks Rider
- Marshall Bromley 450 vs W-King T12
- Marshall Bromley 450 vs Soundboks Mix
- Marshall Bromley 450 vs Soundboks Go
- Marshall Bromley 450 vs Tronsmart Halo 300
- Marshall Bromley 450 vs Onn Large Party gen 2
- See all 28 comparisons