G.R.A.S. Sound & Vibration - Power Modules

Type 12AL - 1 channel

(basic function)

CCP (constant current power) modules

traditional (LEMO) power modules

Type 12AQ - 2 channel (universal power supply)

Freq range: 2 Hz to 200 kHz

Gain: -20dB - +70dB (10dB steps)

Type: LEMO (±15V or ±60V) or CCP

Polarising Voltage: 0 V or 200 V

Use: general purpose, intensity, 

          manual or digital control

low noise (LEMO) power modules

intensity probe (LEMO) power modules

electroacoustic (universal test system) power module

Type 12AU - 1 channel

(universal test system)

Freq range: 1 Hz to 100 kHz

Gain: 0dB - +50dB (10dB steps)

Type: LEMO (±15V or ±60V) or CCP

Polarising Voltage: 0 V or 200 V

Note: manual or digital control, 

      speaker amplifier

Use: automated production testing of 

      Telephones, Hearing aids, 

      Loudspeakers, Portable devices

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