16 Z4II & Z8II: Installation and User Guide
30/05/03 V8
27 EMC Considerations
The Cloud Z4 & Z8 fully conform to the relevant electromagnetic compatibility (EMC)
standards and are technically well behaved; you should experience no operational problems
and under normal circumstances, no special precautions need to be taken. If the unit is to be
used within close proximity to potential sources of HF disturbance such as high power
communications transmitters, radar stations and the like, the performance of the mixer may
be reduced; we suggest that the microphone cable screen be connected to the shell of the
XLR type connector and the line input leads are kept as short as possible.
28 Technical Specifications
Line inputs
Frequency Response
20Hz-20kHz ±0.5dB
Distortion <0.05% 20Hz -20kHz
Sensitivity 195mV (-12dBu) to 2.0V (+8dBu)
Input Gain Control 20dB range
Input Impedance
47kΩ
Headroom >20dB
Noise -90dB A weighted (0dB gain)
Equalisation
HF: ±10dB/10kHz LF: ±10dB/50Hz
Microphone Inputs
Frequency Response
100Hz / -3dB(filter) 20kHz ±0.5dB
Distortion <0.05% 20Hz-20kHz
Gain Range 10dB-50dB
Input Impedance
>2kΩ (balanced)
Phantom power +15V (PCB jumper for on/off)
Headroom >20dB
Noise
-120dB EIN 22Hz-22kHz (150Ω)
Equalisation
HF: ±10dB/5kHz LF: ±10dB/100Hz
Facility Input
Input Impedance
10kΩ (balanced) pin 3(+) pin 4(-)
Sensitivity 0dBu – 775mV
Noise Gate Ground pin 5 to open
Outputs
Balanced Zone Outputs 775mV (0dBu) 3 pin ‘Phoenix’ type connector
Minimum load impedance 600 ohms
Maximum output level +20dBu (7.75V)
29 General Specifications
Power input
230V ±10% 115V ±10% AC 40-60Hz
Fuse rating Z8: 230V – T125mA H 115V – T250mA H
Z4: 230V – T100mA H 115V – T200mA H
Fuse type 20mm x 5mm 250V
Dimensions 482.60mm x 132.50mm(3U) x 160.00mm deep
(+ connectors)
Weight Z4 3.83 kg net
Z8 4.40 kg net
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