REL Acoustics STUDIO III Active Subwoofer

Reference class sub-bass system designed for use with the very finest stereo and multi-channel audio systems in larger rooms.

• True 500W (continuous) discrete, direct-coupled MOSFET amplifier
• 2x downward-firing long-throw 250mm (10”) very heavy duty “Volt” drivers , die-cast chassis
• Refined ABC® variable crossover adjustment in 24 musically correct semi-tone increments between 24Hz-106Hz.
• Acoustic Resistive Matrix (ARM) loading for smoother bass response
• Four position mode selector: line/LFE (0 degrees phase and 180 degrees phase)
• Audiophile grade toroidal transformer
• Gas-tight Neutrik high level connection for long-term consistency of sound quality
• High quality, panel-mounted twin phono inputs at 0dB and +12dB (low level)
• High and low level balanced inputs (Neutrik/XLR)
• Totally discrete input circuitry for high and low level inputs
• Separate volume controls for high and low-level adjustment
• Simultaneous connection of high and low level sources
• Set-Safe® audibly transparent driver protection
• Balanced-bridge power supply
• 8x ultra-rugged output devices
• Double thickness, double-sided glass-fibre board with plated-through holes
• IEC power input socket - no captive leads for installation flexibility
• Hand-built in Great Britain, three year worldwide warranty

Specifications
System Type	ARM loaded cabinet with ABC® semi-tone variable bass filter. 110 litre.
Lower Frequency Response	(in room -6dB): 9Hz
Amplifier Input impedance	High level 100 kohm
Gain Control Range	Low level 10 kohm 80dB
Drive unit impedance	8 ohm
Mains input voltage	115 V 50/60 Hz or 230 V 50/60 Hz, subject to country
Dimensions WxHxD mm (inches) incl. feet and rear panel controls	685x617x567 (26.99 x 24.31 x 22.34)
Weight Kg (lbs)	93 (205.03)
Finishes	black oak light oak rosenut