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The 800W SBC800 Powered LFE/Sub-Bass and LCR Controller from Quested is a bass management tool for music and film production designed to improve the low frequency response of surround sound or film monitoring systems. It has enough power and connectivity to support up to three X12 or X15 subwoofers (not included). Its back panel features individual LCR inputs and outputs as well as an LFE input, while its front panel provides adjustable controls of gain and phase for each section independently. The SBC800 provides EQ for all outputs and amplification for subwoofer outputs. The mono output is 800W into 4Ω and output level is monitored with an LED display. This unit is rack-mountable (2RU).
Adjustable controls for LCR, LFE, and PEQ sections
Two bands of parametric equalization to adjust LF response to suit different applications
800W into 4Ω output level monitored with LED display
Table of Contents
4 x XLR and 1/4" combination sockets, inputs female 3 x XLR outputs, male 2 pairs of 4 mm banana socket, speaker binding posts +/- , female 1 x 3.5 mm phone jack, system bypass link and remote switching, female 1 x IEC, power input
Left, Center, Right (LCR) Channel: Phase: 0 - 180° Frequency: 30 Hz - 90 Hz, adjustable crossover frequency Bypass/Sub-Off: Switches LCR inputs directly to LCR outputs Mix Level: -16 dB to +6 dB relative to LCR input
Low Frequency Effects (LFE) Channel: Gain: -16 dB to +6 dB relative to LCR input +10 dB Boost: Switched, for LFE input Frequency: 50 Hz - 150 Hz, adjustable low pass filtering Phase: 0 - 180° Bypass: Switched, for LFE section
Parametric Equalizer (PEQ) Section: Frequency: 20 - 90 Hz Width: Q Factor 0.5/3.0 Gain: -6 dB to +6 dB Phase/Polarity: 180° phase reversal Sub Solo: Mutes all outputs except subwoofers
800 W @ 4Ω 400 W @ 8Ω
Hum and Noise
<-105 dB (referred to clip level)
<0.03% at levels up to 1 dB below clip level
115 / 230 VAC, 50/60 Hz
115 VAC (80 to 127 VAC maximum) 230 VAC (160 to 255 VAC maximum)
45 W (quiescent current)
19.0 x 3.5 x 11.8" (48.2 x 8.8 x 30.0 cm)
23.1 lb (10.5 kg)
Quested SBC800 Powered LFE/Sub-Bass and LCR Controller (800W) Review