Dave are you talking about an external DSP for receiving? Why would you want a DSP to cover 3-5Khz? It defeats the purpose of a filter. What am I missing here? Robert Parker VE3RPF ________________________________ From: Dave Casement <va3dac@xxxxxxxxx> To: karc@xxxxxxxxxxxxx Sent: Mon, March 22, 2010 5:28:48 PM Subject: [karc] Audio DSP Hi, Does anyone know of a model of audio DSP that puts out a bandwidth of more than 3 KHz. I need 5 if that is possible. Maybe they all do more than 3. Thanks Dave VA3DAC __________________________________________________________________ Yahoo! Canada Toolbar: Search from anywhere on the web, and bookmark your favourite sites. Download it now http://ca.toolbar.yahoo.com.