12AX 4-Channel CCP Power Module with Gain

Key Features

Polarization Connection: 0 V / CCP
Channels: 4

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12AX 4-Channel CCP Power Module with Gain

The GRAS 12AX CCP (Constant Current Power) Supply is a low-noise 4-channel power supply for CCP microphone sets.

The GRAS 12AX is a constant current power module for powering 4 CCP preamplifiers/microphone sets.

It is optimized for integration into a production environment. The anodized enclosure is sturdy and offers good protection against dirt, dust, and moisture.

Key Specifications

Frequency response (+1,-3 dB) @ Gain = 0 dB	1 Hz to 300 kHz
Frequency response (+1,-3 dB) @ Gain = 20 dB	1 Hz to 200 kHz
Frequency response (+1,-3 dB) @ Gain = 40 dB	1 Hz to 70 kHz
Output channel(s)	4
Output impedance	75 Ω
Direct coupling input to output	No
Inherent noise (20 to 20 kHz) @ Gain = 0 dB	1.5 µVrms
Inherent noise (20 to 20 kHz) @ Gain = 20 dB	15 µVrms
Inherent noise (20 to 20 kHz) @ Gain = 40 dB	150 µVrms
Gain settings, 20 dB steps	0, 20 and 40 dB
Gain error	± 0.15 dB
Linear mode	Yes
Type	Constant Current Power (CCP)
Input channel, CCP	4
CCP preamplifier supply @ +28 V	5 mA
Overload indication	Yes
PC controlable	No
External filter option	No
Power amplifier overload detection	No
Power supply, external	9 to18 Vdc
Battery low indication	No
Temperature range, operation	-10 to +50 °C / 14 to 122 °F
Weight	1100 g / 38.8 oz