| Model |
Marshall Bromley 450 |
| Speaker Type |
Portable Party Speaker |
| Amplifiers |
2 x 90W Class D (woofers), 4 x 55W Class D (full-range) |
| Drivers |
2 x 6.5″ woofers, 4 x 2″ full-range, 2 x passive radiators |
| Frequency Response |
42Hz – 20kHz |
| Max SPL |
100 dB @ 1m |
| Audio Codecs |
SBC, AAC, LC3 |
| Bluetooth |
5.3 with Auracast |
| Wired Inputs |
AUX 3.5mm, RCA, USB-C |
| Mic/Instrument Inputs |
2 x XLR/6.3mm combo jacks |
| IP Rating |
IP55 (dust and splash resistant) |
| Battery Type |
Replaceable LFP (LiFePO4) |
| Battery Life |
40+ hours |
| Fast Charging |
20 min = 6 hours playback |
| Full Charge Time |
3.5 hours |
| Dimensions (W x H x D) |
366 x 261 x 492mm |
| Weight |
12.2kg (26.9 lbs) |
| Color |
Black |
| Materials |
PU leather wrap, TPU corner caps, metal grille |
| Release Date |
March 2026 |