Audio Specification
Driver Type: Dynamic
Frequency Range: 40 Hz – 20,000 Hz
Drivers: 2 ? 6.5″ 40 W Woofers, 4 ? 2″ 6 W Full-Range Drivers, 2 Passive Radiators
Stereo/Mono: Stereo
Maximum Sound Pressure Level: 100 dB @ 1 m
Cabinet Principle: Sealed with Passive Radiator
Power Amplifiers: 2 ? 90 W Class D Amplifiers for Woofers, 4 ? 55 W Class D Amplifiers for Full-Range Drivers
Equaliser: Yes
Sound Technology: True Stereophonic 360° Sound
Connectivity
Wireless Connectivity: Bluetooth 5.3, Auracast
Bluetooth Range: More than 70 m (229 ft) in open space
Supported Audio Codecs: SBC, AAC-MPEG 2, LC3
Bluetooth Multipoint: Yes
Wired Connectivity: AUX 3.5 mm (Input and Output), USB-C, RCA
Microphone/Instrument Inputs: 2 ? XLR/6.35 mm Combo Jacks
USB-C Output: 5 V / 3 A
Mobile App Compatible: Yes
App Name: Marshall Bluetooth App
Battery
Battery Type: Rechargeable, Replaceable LFP Battery (LiFePO4)
Playtime: 40+ Hours
Quick Charging: 20 Minutes for 6 Hours of Playtime
Charging Time: 3.5 Hours
Exchangeable Battery: Yes
Power Input: 120 W
Power
Mains Input Voltage: 100–240 V
Mains Frequency: 50/60 Hz
Physical
Color: Black and Brass
Dimensions (W ? H ? D): 366 ? 492 ? 261 mm
Weight: 12.32 kg
Water and Dust Resistance: IP55
Light Show: Yes, 3 Presets
Portability Features: Built-in Handle, 4 Strap Anchors
Wheels: No
Controls
Top Panel Controls: Power Switch, Source Selector, Media Control, Volume, Bass, Treble, M-Button, Input 1 and Input 2 Volume Controls, Input Effects Control, Light Mode, Battery Indicator
https://www.marshall.com/ma/en/product/bromley-450?pid=1008199&srsltid=AU7gw4W-xdkdA0oGGaYRPszPkXg24OH-WSH-4sXmr_BAqdMFb9tHF6El
