Allen & Heath 8 GS_R24 User Guide
Operating Levels
Inputs
Mono channel (XLR) Input -6 to –60dBu for nominal (+14dBu in max)
Mono channel Line Input (Jack socket) +14 to –40dBu (+34dBu maximum)
Insert point (TRS Jack socket) 0dBu nominal +21dBu maximum
Stereo Input (Jack sockets) 0dBu nominal (control = Off to +10dB)
Stereo input (phono sockets) 0dBu nominal (control = Off to +15dB)
Valve channel (XLR) -10 to –60dBu for nominal (+10dBu max)
Valve channel (Line) +10 to –40dBu for nominal (+30dBu maximum)
Valve channel (Inst gain boosted) -16 to –66dBu for nominal (122mV to 0.388mV rms)
2 Track Input (phono or TRS jack sockets) 0dBu nominal +21dBu maximum
Outputs
Main (2 Track 1) L-R (XLR) & Groups 1-4 (TRS Jack) +4dBu nominal. +27dBu maximum.
L-R Insert & Group Inserts (TRS Jack socket) 0dBu nominal +21dBu maximum
2 Track 2 Outputs (Jack sockets) 0dBu nominal. +21dBu maximum.
All other analogue outputs 0 nominal +21dBu maximum
Headroom
Analogue headroom from nominal (0Vu) 21dB
Analogue headroom at Mix summing amplifier 23dB
Frequency Response
Mic in to Mix L/R Out, 10dB gain +/-1dB 10Hz to 130kHz.
Line in to Mix L/R out 0dB gain +/-0.5dB 20Hz to 20kHz
Stereo in to Mix L/R out +/-0.5dB 20Hz to 40kHz
Mic in to Mix L/R Out, 30dB gain +/-0.5dB 20Hz to 80kHz.
Mic in to Mix L/R Out, 50dB gain +/-1dB 20Hz to 80kHz.
THD+n
Mic in to Mix L/R Out, 10dB gain 1kHz +10dBu out (DC to 22kHz) 0.0015%
Mic in to Mix L/R Out, 30dB gain 1kHz (DC to 22kHz) 0.0025%
Line in to Mix L/R out 0dB gain +10dBu 1kHz (DC to 22kHz) 0.002%
Stereo in to Mix L/R out 0dB gain +10dBu 1kHz (DC to 22kHz) 0.002%
Mic in to Mix L/R Out, 50dB gain 1kHz (DC to 22kHz) 0.0035%
Mic in to Mix L/R Out, 30dB gain 10kHz (DC to 30kHz) 0.0025%
GS-R24 SPECIFICATIONS