Eatern Electric
http://www.eeaudio.com/
BBA

Specifications
Maximum input : 6V
Gain (1KHz) : 0dB to +18dB
Input Impedance : 220K ohm
Output Impedance : 800 ohms ¡V 10K ohms
Signal to Noise : 95dB to 85dB
THD : 0.1%
Frequency response : 10Hz - 100KHz
Power consumption : 35VA
Measurement : 165 x 127 x 292mm