QM450A Powered Multi-purpose Speaker System

As a lightweight timber powered modular speaker system, the QM450A has many design features that will appeal to professional users.

QM450A Powered Multi-purpose Speaker System FrontQuest QM450A

The QM450A is primarily designed for mobile compact production and audio visual rental companies who need a lightweight versatile powered speaker with an emphasis on voice projection. Amplifier power is supplied by a new Quest Engineering innovative combination “Hybridtec” digital class D and analogue class A/B amplifier system and controlled by an internal analogue system controller. Simplified Controls on the rear of the QM-450A make operation easy. The QM-450A features an XLR input, XLR link output, Gain control, 110Hz High Pass/voice boost switch as well as individually coloured PeakClipSignalPower LED indicators providing clear and immediate visual indicators.

The QM450A is also at home as a powered foldback monitor and the asymmetrical high frequency wave guide can be rotated to a wide coverage in foldback mode to give uniform close field coverage without feedback inducing hot spots.

The QM450A system has it all; flexibility, sonic performance, light weight and Quest’s renowned reliability without compromise. An asset in any professional audio inventory for sound guys on the move.


QM450A Powered Multi-purpose Speaker System Rear

Power Amplifier Module Output 450 / 400+50 W RMS
Frequency Response 60 – 18 kHz (+/-3dB)
Maximum SPL output @ 1m 129.5dB @ 1kHz
Input Impedance 22kOhm balanced
Amplifier Protection Limiter, Clip, short-circuit, on and off
Connections 1x XLR input
1x XLR output link
Controls Power , Volume (Gain), 110Hz high-pass Mode
Indicators Power, Signal, Clip, Peak square LEDs
Woofer Tweeter 12" high power mid-bass woofer
1" ferrite compression driver
Directivity Asymmetric +15/-45 vertical
45/60 horizontal
Dimensions (HxDxW) 620 x 380 x 346.5 mm
Weight 20kg Net

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