Microphone Power Supply CRY575

CRY575 3-channel Microphone Power Supply is designed to provide constant current for the microphone with ICP

(CCLD or IEPE) preamplifier. Furthermore, channel 2 also provides positive and negative power for

classical dual-power preamplifiers. It has a wide-band frequency range, high input impedance, low output

impedance, and low background noise. CRY575 can be used with CRY506/CRY502 and third-party

preamplifiers.

The gain of CRY575’s each channel can selected from 0dB(×1), +20dB(×10) and +40dB(×100).

Front Panel (fig 1)

1、Gain select switches（X 1/X 10/X 100）： For channel 1 and channel 2, adjust the gain individually, 0dB(×1), +20dB(×10), +40dB(×100) can be chosen.

2、LED indication（POWER）： lights when the instrument is working.

3、Channel output（CH OUT）：2 × BNC.

4、Channel input（CH IN）：2 × BNC, used with ICP preamplifier.

Rear Panel (Fig 2)

1、Power and Gain select switch（ON-OFF）/（X 10/X 1/X OFF）： This is a multiplexed switch. you can choose the left two gear to turn on the instrument, and it will provide 0dB(×1), +20dB(×10) gain for channel 3. Also, you can choose the right gear to turn down the instrument.

2、Power input：USB or 5V power adaper.

3、Channel input (CH3 IN)：1 × BNC, used with ICP preamplifier.

4 Channel output (CH3 OUT)：1 × BNC.

5、Channel input (CH2B IN): 1 × dB9(M), used with dual power preamplifier.