Izora..I got an email today from Tom at Class D Audio regarding to know the input impedance of the SDS 470 which is 45Kohms, and the gain, which is adjustable on the back for each channel which can be set up to 34db's which makes it easier to match with Preamp's that have a high or low voltage output. Looking at the pics on the Class D Audio site of the SDS-470 kit, I'm impressed that it
includes a toroidal transformer, and a power board that has six large capacitors. I'm amazed that in the assembled version it sells for $700.00, which has enough under the hood to sell for $2K to $3K from other companies. Tom mentioned he makes very little profit and his sales are very strong in Europe.
includes a toroidal transformer, and a power board that has six large capacitors. I'm amazed that in the assembled version it sells for $700.00, which has enough under the hood to sell for $2K to $3K from other companies. Tom mentioned he makes very little profit and his sales are very strong in Europe.