OSD Audio's Preamp-1 Professional Preamplifier is a game-changer for any home theater or recording setup. With its versatile features such as mic level control, bass/midrange/treble/loudness/balance control, microphone jack input, input selector, low-frequency filter, and mute, you can fine-tune your audio output to achieve the perfect sound.

Not only does the Preamp-1 enhance your listening experience by boosting the low-level output of microphones and adding tonal quality to sound, but it also has a phono preamp for moving magnet cartridges, making it a perfect choice for audiophiles. With a frequency response of 5Hz - 30kHz +0 -3dB, this preamplifier delivers a clear and dynamic sound that will transform your home theater and recording experience.

Input Sensitivity/Impedance
  • Mic 0.5V/600 Ohms 
  • Phono 3mV/47k Ohms 
  • Tape,Tuner, CD/DVD, Aux 150mV/47k Ohms 
Output Level/Impedance 
  • Tape Rec 150mV/100k Ohms 
  • Pre Output 500mV/47k Ohms 
Total Harmonic Distortion 
  • Mic less than 0.4% 
  • Phono less than 0.4% 
  • Tape,Tuner, CD/DVD, Aux less than 0.2% 
Signal to Noise Ratio 
  • Mic more than 50dB 
  • Phono more than 70dB 
  • Tape,Tuner, CD/DVD, Aux more than 80dB 
Frequency Response 5Hz - 30kHz +0 -3dB 

Tone Control 
  • Bass ± 12dB @ 100Hz 
  • Midrange ± 6dB @ 1kHz 
  • Treble ± 12dB @ 10kHz 
Loudness Control: +4/0/+2dB @ 100/1k/10kHz 
Power Requirements: AC 120V 60Hz / 220V 50Hz 
Dimensions: 18.9" x 2.36" x 8.25