Frequency Response 5 Hz to 25 kHz (+/– 1.5db)
Power Source One 9V Battery
Battery Life 1800 Hours
Bass Control +/- 15db Boost @ 30 Hz
Middle Control +/- 13db Boost @ 250 Hz
Treble Control +/- 18db Boost @ 10 kHz
Total Harmonic Distortion 0.1% @ 1kHz
Input Impedance 1.5 MOhm
Output Impedance 182kOhm
Gain: 0-12dB (internal trimmer)