Power Down; Specifications - SPL Crescendo duo Manual

Crescendo duo – Manual
The phantom power required for condenser microphones can be activated with
8
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!
9
Use the Mic Gain switch to adjust the preamplification gain in 2 to 7dB steps.
The Output Gain controls the output level from -10 to +10dB.
10
With the OUTPUT switch the signal can be completely switched off.
The polarity of a microphone signal can be inversed (180°) with the Polarity
11
Inversal switch.
12
The High Pass switch activates a high pass filter with 3dB per ocatve at 120 Hz.
13
If the input signal is too hot, switch on PAD. This reduces the level by 20dB.
14
You can make the VU Meters less sensitive by activating the VU -10dB switch.

Power down

15
Switch off mains on the back of the
The VU Meter no longer light up.

Specifications

Frequency range
20-100kHz (32dB Gain) -3dB
Mic pre amp gain
70dB (in 2 to 7 dB steps)
Output gain
+/- 10dB
Input impedance
10 kOhm
Output impedance
< 600 Ohm
Noise (A-weighted)
(63dB Gain) -67.5dBu
(32dB Gain) -94 dBu
Noise FFT
(63dB Gain) -97dBu
(32dB Gain) -125dBu
4
Crescendo duo (Off = O).
CMRR
(63dB Gain) > 65dBu/1kHz
(32dB Gain) > 88dBu/1kHz
THD/N
(63dB Gain) 0.001%
(32dB Gain) 0.002%
(18dB Gain) 0.0002%
E.I.N
(63dB Gain) 150 Ohm -131.2dBu
(32dB Gain) 40 Ohm -126.4dBu
Power consumption
230V: 17.7 W
115V: 20 W
Fuses
230V 315mA (Fast)
115V 630mA (Fast)
8
Phantom Power
14 14
VU Meter
VU -10dB
12
High Pass
11
Polarity Inversal
15
Mains Switch
Crescendo duo – Manual
EN
DE
13
PAD
9
Mic Gain Switch
10
Output Gain
5