Power module - Type 12AP


Power module - Type 12AP
The Power Module Type 12AP is a power supply and conditioning amplifier for simultaneously powering a preamplifier for a condenser microphone and an amplifier for a loudspeaker (suitably, any sound source using a loudspeaker/earphone/coupler). By design, it will avoid system-generated noise, e.g. from ground loops.
It is remotely controlled entirely via its RS232 interface and, for this purpose, is delivered with a control program for Microsoft Windows®.
In a measurement set-up, the Type 12AP straddles the paths of both the signal sent out to the loudspeaker and the resulting acoustic signal picked up by a condenser microphone fitted to the preamplifier. In both cases, its set-up for handling these signals independently comes under external control.
Specifications Type 12AP
Preamplifier section Speaker-amplifier section Dimensions, weight, power
Input connector: 7-pin LEMO Input connector: BNC Height:    132.6 mm (5 ¼")
Output connector: BNC Input impedance: 10 kOhm Width: 104.5 mm (4.1")
Output impedance: 100 Ohm Output connector: Coaxial LEMO Depth: 237.0 mm (9.3")
Gain*: 0 - 40 dB Current output connector*: BNC Weight: 2.5 kg (5.5 lbs)
Bandwidth (-3 dB): 1 Hz to 200 kHz Gain*: -20 to +10 dB Power: 110 V AC or 240 V AC
Noise floor (rel. input): 6 µV RMS 20 - 20 kHz Bandwidth (-3 dB): DC to 80kHz  
Polarization voltage*: 0V/200 V Phase shift (in/output) ±1°: DC to 30 kHz  
High-pass filter*: 1 Hz/20 Hz Max. output voltage: ±14 V  
Overload detection*: red LED Max. output current: ±1.4 A  
  Overload detection*: red LEDs  
*remote controlled *remote controlled  
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