Marshall Bromley 450 - Black And Brass

Description

True Stereophonic 360°, Six Drivers, and Class D Amplification

The Bromley 450 uses Marshall's True Stereophonic 360° technology to project sound around the speaker rather than only in front. The driver array combines two 6.5-inch woofers (each driven by a 90 W Class D amplifier) and four 2-inch full-range drivers (each driven by a 55 W Class D amplifier), plus two passive radiators in a sealed cabinet. The stated frequency response is 40 Hz to 20 kHz with a maximum SPL of 100 dB at 1 m.

Removable LFP (LiFePO4) Battery: 40+ Hours

The speaker uses a rechargeable, removable LFP (lithium iron phosphate) battery rated at 40+ hours of playtime at mid volume. A 20-minute quick charge restores about 6 hours of playback, and a full recharge takes about 3.5 hours. The battery is user-replaceable behind a rear hatch, and spares are available from Marshall; the speaker also works on AC without the battery installed (100-240 V, 50/60 Hz). The USB-C port can also charge an external device (5 V, 3 A).

Mic/Instrument XLR, RCA, 3.5 mm, and USB-C Inputs

The rear panel provides two XLR/6.35 mm combo jacks for a microphone or an instrument, with per-input volume and per-input effect controls on the top panel. Other audio I/O includes stereo RCA, 3.5 mm AUX (input and output for daisy-chaining another system), and a bi-directional USB-C audio port. Bluetooth 5.3 is built in with Auracast, multipoint pairing (two source devices at once), and support for the SBC, AAC (MPEG-2), and LC3 codecs. Stated Bluetooth range is over 70 m in free field.

Top-Panel Controls, Integrated Stage Lights, and IP55 Build

The top panel carries the physical controls: power switch, source selector, media control, main volume, bass, treble, an M-button, per-input volume and effect controls, light mode, and a battery indicator. Three integrated stage-light presets are selectable directly from the top. The cabinet is IP55-rated for dust and splashing water, with a built-in carry handle and four strap anchors.

Common Questions

Why choose this product?

The Bromley 450 is a portable party speaker that combines True Stereophonic 360° dispersion, two XLR combo inputs for a microphone or an instrument, over 40 hours of battery life on a removable LFP pack, integrated stage lighting, and IP55 dust/splash protection. It is intended for use around the home, backyard, or outdoors.

Can I connect a microphone or an instrument?

Yes. The rear panel has two XLR/6.35 mm combo jacks for a microphone or an instrument (guitar, keyboard, etc.) plugged directly in. Each input has its own volume and its own effect control on the top panel. Microphones are not included.

Is the battery replaceable, and how long does it last?

Yes. The Bromley 450 uses a removable LFP (lithium iron phosphate) battery rated at 40+ hours at mid volume. A 20-minute quick charge restores about 6 hours of playback, and a full charge takes about 3.5 hours. Spare batteries are available from Marshall, and the speaker also runs on AC without the battery installed.

What wired connections are available?

In addition to Bluetooth 5.3, the rear panel has two XLR/6.35 mm combo jacks (mic/instrument), a stereo RCA input, a 3.5 mm AUX input and output (for daisy-chaining another device), and a bi-directional USB-C audio port. The USB-C port can also charge an external device (5 V, 3 A).

Are there integrated lights and an app?

Yes. The speaker has integrated stage lighting with three presets selectable from the top panel. The Marshall Bluetooth app is available for iOS and Android to adjust settings and manage pairing.

What's in the Box

Marshall Bromley 450 speaker

LFP (LiFePO4) battery pre-installed

AC mains lead

Quick start guide

Legal and safety sheet