User Guide

15
6 Specifications
6.1 Microphone Inputs
6.2 Line Inputs
6.3 System
6.4 Ordering Information/Item
Number
6.5 Architects' and Engineers'
Specifications
Type balanced and RF filtered
Impedance approx. 2.4 kΩ at any level
Nominal level -50 to -10 dBu, adjustable in two sub-ranges
S/N ratio 75 dB (20 Hz to 22 kHz, rms)
Max. input level +5 dBu
Turn-on threshold -32 to 0 dB re nominal input level
Hold time 1/4/8/12 secs. ±20%
Gate attenuation 14 to 26 dB, adjustable
Compression ratio linear to 2:1, adjustable
Audio bandwidth 20 Hz to 35 kHz
NOM attenuation 1 microphone: 0 dB 5 microphones: -7.2 dB
2 microphones: -2.1 dB 6 microphones: -8.6 dB
3 microphones: -4 dB 7 microphones: -9.9 dB
4 microphones: -5.5 dB 8 microphones: -11 dB
Phantom power 24 V, switchable on each channel (Ri = 2 x 1.2 kΩ)
Type unbalanced and RF filtered
Impedance >35 kΩ
Nominal level -10 dBu
S/N ratio 75 dB (20 Hz to 22 kHz, rms)
Audio bandwidth 20 Hz to 45 kHz
Max. input level +5 dBu
Max. gain 55 dB (input to main output)
Ducking attenuation 9 dB to 20 dB, adjustable
THD <0.1%; at any level setting
IM distortion <0.1%; at any level setting
Power requirement 5 W max. at 12 V AC
Weight 2.5 kg / 5.5 lbs.
Size 483 x 44 x 180 mm / 19 x 1.7 x 7 in.
AS 4+3 6000H1893
The mixer shall be an automatic mixer capable of being daisy-chained, with four gated microphone inputs
and three line inputs. The microphone inputs shall provide 24-V phantom power and a compressor/limiter
separately adjustable for each channel. The device shall be fitted with microphone inputs and a line out-
put on 3-pin XLR connectors and line inputs and recording outputs on RCA jacks. A switchable ducking
function shall cause all other channels to be attenuated while there is activity in the MIC 1 channel. The
mixer shall be fitted with a two-band equalizer (bass and treble) affecting only the main output signal.