Allen&Heath GL2200 SERVICE MANUAL - Manual (Page 6)

GL2200 S ERVICE M ANUAL 5
Specifications
0 dBu = 0.775 Volts rms 0 dBV = 1 Volt rms
HEADROOM:............................................................ +21dB
MAX OUTPUT: ..............……XLR +25dBu 2kohm max load
...........................................JACK +21dBu 2kohm max load
METERS: L, R……………….peak reading 12 bar LED
Groups 1-4……….peak reading 4 segment LED
Channels…………peak reading 4 segment LED
PEAK LEDs: ........................... Turn on 5dB before clipping
FREQUENCY RESPONSE referred to 1kHz @ +4dBu:
Any input to any output.................... 20Hz to 30kHz +0/-1dB
DISTORTION: THD+Noise @ +14dBu 1kHz
Mic in to L-R output, 40dB gain ................................0.010%
Line in to L-R output, 0dB gain .................................0.008%
CMRR
CROSSTALK: Referred to driven channel @ 1kHz
Adjacent channel ……………………………………... < -94dB
Channel fader off ..................................................... < -90dB
Channel mute on ..................................................... < -90dB
Channel Pan pot isolation ........................................ < -80dB
NOISE: Measured rms, 22kHz bandwidth
Mic input EIN (150 ohm source)............................. < -128dB
Line preamp, 0dB gain........................................... < -90dBu
L-R output residual noise .....................< -94dBu (98dB S/N)
L-R faders ‘0’, nothing routed...............< -90dBu (94dB S/N)
L-R mix noise (16 channels routed) .....< -84dBu (88dB S/N)
Group, faders ‘0’, nothing routed..........< -91dBu (95dB S/N)
Group mix noise (16 channels routed).< -84dBu (88dB S/N)
POWER SUPPLY:.................... 100 to 240V AC @ 47/63Hz
................................... Internal, autosensing AC mains input
Power consumption: ..............................................60W max
Mains Fuse rating 100-240VAC: ............... T1A 250V 20mm
Mic in, 40dB gain @ 1kHz ......................................... >88dB
Connections
INPUTS:
Mic in .............................XLR......................... pin 2 hot, 3 cold, balanced .................... >2k Ohm..........variable -60 to -20dBu
Line in ............................XLR......................... pin 2 hot, 3 cold, balanced .................... >10k Ohm........ variable -30 to +10dBu
or TRS jack ................. tip hot, ring cold, balanced .................... >10k Ohm........ variable -30 to +10dBu
Stereo Ch Line in ...........TRS jack ................. tip hot, unbalanced................................ >8k Ohm ......... -20dBu min
Stereo Return.................TRS jack ................. tip hot, unbalanced................................ >6k Ohm.......... -10dBV min
2-Track Return ...............RCA PHONO .......... unbalanced ........................................... >10k Ohm........ -10dBV min
Insert Return ..................TRS jack ................. tip send, ring return, unbalanced........... >6k Ohm.......... 0dBu (chan), -2dBu (out)
OUTPUTS:
L-R, Group out ...............XLR......................... pin 2 hot, 3 cold, balanced .................... <75 Ohm ......... +4dBu, +27dBu max
Direct out........................TRS jack ................. tip hot, impedance balanced ................. <75 Ohm ......... 0dBu
2-Track sends ................RCA PHONO .......... unbalanced ........................................... <75 Ohm ......... variable +21dBu max
Aux out..........................TRS jack ................. tip hot, impedance balanced ................. <75 Ohm ......... variable +21dBu max
Mono out ........................XLR......................... tip hot, ring cold, balanced .................... <75 Ohm ......... +4dBu, +27dBu max
Insert send .....................TRS jack ................. tip send, ring return, unbalanced........... <75 Ohm ......... 0dBu (chan), -2dBu (out)
Monitor out .....................TRS jack ................. tip left, ring right, unbalanced ................ <75 Ohm ......... variable +21dBu max
Phones out .....................TRS jack ................. tip left, ring right .................................... for stereo headphones 30 to 600 Ohms