Stereo Preamplifier with Bass-boost


Posted on Aug 11, 2012

This preamplifier was designed to cope with CD players, tuners, tape recorders etc., providing an ac voltage gain of 4, in order to drive less sensitive power amplifiers. As modern Hi-Fi home equipment is frequently fitted with small loudspeaker cabinets, the bass frequency range is rather sacrificed. This circuit features also a bass-boost, in order to overcome this problem. You can use a variable resistor to set the bass-boost from 0 to a maximum of +16dB @ 30Hz. If a fixed, maximum boost value is needed, the variable resistor can be omitted and substituted by a switch.


Stereo Preamplifier with Bass-boost
Click here to download the full size of the above Circuit.




Leave Comment

characters left:

New Circuits

.

 


Popular Circuits

Fiber-optic link
The CDMS II Veto Readout Electronics
avr Control 5V buzzer using mcu and a single 5 V power supply
7 Watt Class B Audio Amplifier Circuit
250 to 5000 watts PWM DC/AC 220V Power Inverter
400 Hz SERVO AMPLIFIER
One circuit thermistor relay contacts to prevent competition



Top