Short answer: the Marshall Bromley 450 for better sound quality, the Rockville Rock Party 6 for the lower price. The Marshall Bromley 450 ranks #24 of 44 party speakers, rated 3.7/5, at $649.95. The Rockville Rock Party 6 ranks #44, rated 2.0/5, at $99.95, $550 cheaper.
The Marshall Bromley 450 is the better-sounding, longer-running option. 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. It is rated for 40 hours of battery against 6 for the Rockville Rock Party 6. It is rated IP55, while the Rockville Rock Party 6 has no water resistance. It supports AAC Bluetooth, which the Rockville Rock Party 6 lacks. 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.
The Rockville Rock Party 6 is the lighter choice. Claimed 6 hours (manufacturer specified) battery life and stereo playback make its feature set practical for its intended room or portable use. At 11.9 lbs (5.4 kg) it weighs much less than the Marshall Bromley 450 at 27.1 lbs (12.3 kg).
Buy the Marshall Bromley 450 if sound quality matters more than the price. Buy the Rockville Rock Party 6 if the price matters more than sound quality.
Still deciding? The full Portable Bluetooth rankings cover every ranked option.
Specifications Side By Side
| Marshall Bromley 450 | Rockville Rock Party 6 | |
|---|---|---|
| Price | $649.95 | $99.95 |
| Ranked | #24 of 44 in Party Size Portable Bluetooth Speakers | #44 of 44 in Party Size Portable Bluetooth Speakers |
| Amplifier Power | 400W | - |
| Drivers | 2x 6.5” woofers, 4x 2” full-range drivers, 2 passive radiators | 6.5” (165mm) woofer + tweeters |
| Frequency Response | 42Hz - 20kHz (Manufacturer specified) | - |
| Battery Life | 40+ hours (Manufacturer specified) | 6 hours (Manufacturer specified) |
| Charging Time | 3.5 hours | - |
| Removable Battery | Yes | - |
| IP Rating | IP55 | None |
| Bluetooth | Yes | Yes |
| Bluetooth Version | 5.3 | - |
| Bluetooth Codecs | SBC, AAC, LC3 | SBC |
| Aux Input | Yes (3.5mm, RCA) | Yes |
| Digital Aux Input | Yes (USB-C) | No |
| Microphone Input | Yes (2x XLR/6.35mm combo) | - |
| XLR Input | Yes (2x combo) | - |
| Guitar Input | Yes | - |
| Power Bank | Yes (USB-C) | No |
| Power Input | USB-C | AC Power cord |
| App | Yes (Marshall Bluetooth app) | No |
| EQ | Yes | No |
| Party Mode | Yes (Auracast) | No |
| Built-in Microphone | No | - |
| USB Playback | No | No |
| Wi-Fi | No | - |
| TWS | No | No |
| Lights | Yes | Yes |
| Weight | 27.1 lbs (12.3 kg) | 11.9 lbs (5.4 kg) |
| Dimensions | 14.4” x 19.4” x 10.3” (366 x 492 x 261 mm) | 9.8” x 9.5” x 22.8” (250 x 242 x 580 mm) |
| Stereo | Yes | Yes |
| Omnidirectional | Yes | No |
| Strap | No | No |
| Wheels | No | - |
| Bass Extension (-10dB) | - | ~60Hz |
Related Speaker Comparisons
How Marshall Bromley 450 compares with other leading options:
- Sony ULT Tower 7 vs Marshall Bromley 450
- JBL Partybox 330 vs Marshall Bromley 450
- JBL Partybox Stage 320 vs Marshall Bromley 450
- JBL Partybox 310 vs Marshall Bromley 450
- Sony ULT Tower 5 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.
As an eBay Partner, we may be compensated if you make a purchase.
The Two Speakers In Full
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
Rockville Rock Party 6: $99.95 Amazon eBay
Pros: At 5.4 kg, Rockville Rock Party 6 combines 6.5” (165mm) woofer + tweeters with Bluetooth and aux. Claimed 6 hours (manufacturer specified) battery life and stereo playback make its feature set practical for its intended room or portable use. Measured bass extension of ~60Hz (-10dB).
Cons: Bass is limited by its ~60Hz specification. There is no companion app. No EQ adjustment.
Full Rockville Rock Party 6 review and specifications →
| App | No |
|---|---|
| Aux Input | Yes |
| Bass Extension (-10dB) | ~60Hz |
| Battery Life | 6 hours (Manufacturer specified) |
| Bluetooth | Yes |
| Bluetooth Codecs | SBC |
| Digital Aux Input | No |
| Dimensions | 9.8” x 9.5” x 22.8” (250 x 242 x 580 mm) |
| Drivers | 6.5” (165mm) woofer + tweeters |
| EQ | No |
| IP Rating | None |
| Lights | Yes |
| Omnidirectional | No |
| Party Mode | No |
| Power Bank | No |
| Power Input | AC Power cord |
| Stereo | Yes |
| Strap | No |
| TWS | No |
| USB Playback | No |
| Weight | 11.9 lbs (5.4 kg) |
- Links
- Reviews, Comparisons and Sound Samples
- Head-to-Head Comparisons
- Rockville Rock Party 6 vs Soundcore Rave
- Rockville Rock Party 6 vs Sharp PS-929
- Rockville Rock Party 6 vs Panasonic SC-TMAX5
- Rockville Rock Party 6 vs Philips NX200
- Rockville Rock Party 6 vs Onn Large Party gen 1
- Rockville Rock Party 6 vs W-King T9 Pro
- Rockville Rock Party 6 vs Soundboks Go
- Rockville Rock Party 6 vs Soundboks Mix
- See all 28 comparisons