Buzz Audio QSP-20
4 channel Class A discrete mic preamp
Four channels of high end microphone and instrument amplification at a very competitive price. The QSP 4 channel mic preamp is made with real Class A discrete amplification and high end audio transformers just like the vintage classics of the past. But it does not carry the vintage price tag. The QSP has a stunning sound which you will immediately notice and owning a unit means never having to doubt your preamplifier again.
FEATURES
SPECIFICATIONS
Min Gain Mic = +22dB (-2dB with pad in)
Max Gain Mic = +70dB
Min Gain Instrument = +12dB (-3dB with pad in)
Max Gain Instrument = +60dB
Maximum Output Level = +29dBu into 3k ohm load.
Frequency Response
Mic = 10Hz to 200kHz @ 20dB gain (-3dB).
Instrument = 10Hz to 120kHz @ 20dB gain (-3dB).
Total Harmonic Distortion
(measured at -20dBu input, gain adjusted for +10dBu output level)
Mic = 0.15% @ 100Hz, 0.01% @ 1kHz, 0.005% @ 10kHz
Instrument = 0.15% @ 100Hz, 0.015% @ 1kHz, 0.015% @10kHz
Noise
EIN Mic = -131dB A wtg, 150ohm source Z.
Signal to Noise Ratio Instrument = -76dB A wtg, input shorted.
CMNR Mic = -78dB @ 100Hz, -100dB @ 1kHz, -100dB @ 10kHz.
Input Impedance Mic = 4k ohms/1k2 ohms switchable.
Input Impedance Instrument = 1MEG ohms.
Power
115V or 230V ac mains, switchable on rear panel.
