AC Sound PI3141 PWM PYE Compressor

Pulse width modulation (PWM) is a rarely employed gain-reduction technique by which signals above the threshold are "chopped" using a high-frequency pulse. AC Sound's PI3141 is a reproduction of a classic PYE compressor that utilized this technology. <a href="http://wiki.diyrecordingequipment.com/wp-content/uploads/2011/06/pye.jpg"><img src="http://wiki.diyrecordingequipment.com/wp-content/uploads/2011/06/pye-300x199.jpg" alt="diy pye compressor" title="pye" width="300" height="199" class="aligncenter size-medium wp-image-3745" /></a> <strong>Notable Features:</strong> <ul> <li>Decay, limit (threshold), and ratio controls</li> <li>Class A operation</li> <li>Transformer balanced</li> <li>Stereo linking capability</li> </ul> <strong>Price:</strong> $55 for PCB <strong>More Information:</strong> <ul> <li>PCBs available from <a href="http://store.acsoundstudio.com/products" target="_blank">AC Sound</a></li> </ul>