I have two boards that are complete except for the resistors and capacitors for a specific speaker,and the same for the selectable Hi Pass. They have built in power supplies on each board that makes them extremely easy to incorporate. They use the Burr-Brown OPA 2134pa op amp.(the op amps are not mounted, they need to be soldered in or add the 8 -DIP socket so the op amps can just be pressed in).They incorporate an input buffer, a 2nd order High Pass that is user selectable,disabled or select your Frequency by adding resistor and capacitors, and a variable gain pot +/-6dB. These are new and unused. I purchased them for an LT project that is no longer in the works.
$95 each, shipped to the 48 states.
pics available
ahangartner@cox.net
