Subwoofer Amp


Posted on Apr 14, 2012

The fins were added to a simple flat aluminium panel, and are made from 20 x 20 x 3mm aluminium angle. Their purpose is threefold - they improve the performance of the plate as a heatsink (although this is not necessary with the BP4078 PWM amp), they make the panel a lot more rigid, and provide essential protection for the volume control and phase switch. It also looks better IMO - it looks like it means business, rather than looking like one of those wimpy 50W plate amps you see advertised.


Subwoofer Amp
Click here to download the full size of the above Circuit.




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