SPL Crescendo 8-Channel Microphone Preamplifier (Silver) - Handbuch (Seite 3)

Crescendo – Manual Crescendo – Manual
4 5
EN
DE
Mic Gain
VU Meter
Mains Switch
13
9
13
VU -10dB
12
PAD
11
Polarity Inversal
10
Phantom Power
8
Frequency range
20-70kHz -3dB
Mic pre amp gain
70 dB (adjustable with potentiometer)
Input impedance
10 kOhm
Output impedance
75 Ohm
Noise (A-weighted)
(150 Ohm, 60dB Gain) -69.7 dBu
(150 Ohm, 30dB Gain) -87.5 dBu
CMRR
80dBu/1kHz
THD/N
(10 Hz - 22 kHz, 30dB Gain) 0.008%
E.I.N
(60dB Gain) 150 Ohm -129.7 dBu
Power consumption
230V: 60 W
115V: 80 W
The phantom power required for condenser microphones can be activated with
the 48V switch.
If phantom power is on, the 48V LED lights up blue.
IMPORTANT: Use phantom power only for condenser microphones. For all other microphone types – especially
ribbon micorphones – switch off the phantom power!
Use the Mic Gain control to adjust the preamplification gain.
The polarity of a microphone signal can be inversed (180°) with the Polarity
Inversal switch.
If the input signal is too hot, switch on PAD. This reduces the level by 20dB.
You can make the VU Meters less sensitive by activating the VU -10dB switch.
Power down
Switch off mains on the back of the Crescendo (Off = O).
The VU Meter no longer light up.
Specifications
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9
10
11
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13