10W Audio Amplifier With Bass-Boost


Posted on Feb 6, 2014

This design is based on the 18 Watt Audio Amplifier, and was developed mainly to satisfy the requests of correspondents unable to locate the TLE2141C chip. It uses the widespread NE5532 Dual IC but, obviously, its power output will be comprised in the 9. 5 - 11. 5W range, as the supply rails cannot exceed ±18V. As amplifiers of this kind are freque


10W Audio Amplifier With Bass-Boost
Click here to download the full size of the above Circuit.

ntly used to drive small loudspeaker cabinets, the bass frequency range is rather sacrificed. Therefore a bass-boost control was inserted in the feedback loop of the amplifier, in order to overcome this problem without quality losses. The bass lift curve can reach a maximum of +16. 4dB @ 50Hz. In any case, even when the bass control is rotated fully counterclockwise, the amplifier frequency response shows a gentle raising curve: +0. 8dB @ 400Hz, +4. 7dB @ 100Hz and +6dB @ 50Hz (referred to 1KHz). A correct grounding is very important to eliminate hum and ground loops. Connect to the same point the ground sides of J1, P1, C2, C3 &C4. Connect C9 to the output ground.




Leave Comment

characters left:

New Circuits

.

 


Popular Circuits

Subwoofer Controller
PIC16F84 Solar Charger
Triangle-generator
How to Make a Simple Metal Detector Circuit Using IC CS209A
Mixing AC and DC power in a circuit
RF Signal Generator
Eliminate hum instrumentation amplifier INA101 circuit
Zero-power regulator circuit diagram
100W AM Valve RF Transmitter circuit



Top