Schematic Rise

Showing posts with label crossover. Show all posts

Monday, August 18, 2014

150W amplifier with active crossover

Series 150W Amplifier With Active Crossover Series 150W Amplifier with Active Crossover is very interesting. Actually, this circuit uses 4-channel power amplifier chip.

Well, as an Active Crossover here we use also a chip that can separate the tone of the bass, midrange and treble, the output from the Active Crossover can be directly amplified by power amplifier.

Power Chip 4-channel amplifier that we use is SANYO LA47536 who have power outputs up to 150W, while for Active Crossover (Active Crossover) we use the LF353 from National Semiconductor.

Monday, August 11, 2014

Tweeter Crossover

This is tweeter (high frequency speaker) crossover which will filter the treble (high frequency) to be feed to tweeter. The bass (low frequency) cannot pass the tweeter speaker since there is low pass filter made of C1, C2 and R1 assembled before the tweeter.

Notes

The tweeter can be a 2 to 3 inch, 4 to 8 Ohm one .
R1 is used to adjust match the the tweeters output level to that of woofer.
C1 and C2 are electrolytic capacitors.
R1 should be rated more than 2 Watts.