For sale is a fully-working, excellent condition Class D Audio SDS-470 amplifier:
Manufacturer's Site:
http://classdaudio.com/audio-amplifiers/sds-470c-custom-class-d-amplifier.htmlThis one was assembled by myself. Chassis and SDS-470 amp board were purchased new, direct from Class D Audio approximately two years ago. The SMPS power supply is a
Connex Electronic SMPS800R; it was purchased new direct from Connex. (Note the link is to the newer SMPS800RE, which has replaced what I have. In other words, there is no link for the previous version, which this amp has.)
I have used this regularly, as it's been my primary living room amp for music and TV/movie duties. I am replacing it with a DIY tpa3116-based amp, only due to the latter's smaller size. (I didn't think the lower-wattage TI-based amp would be sufficient, but it's plenty for my needs. This is an indication of how little of the SDS-470's potential I used.)
Retail price on a stock SDS-470 $695. I consider this one upgraded, as I definitely noticed an improvement with the Connex PSU over the stock Class D Audio linear power supply. (I also have the linear power supply available, I will consider adding it to the package, but please PM me for details on that.)
This amp will do 600 Watts/Channel at 4 Ohms, and 300 Watts/Channel at 8 Ohms.
Read online reviews, this amp has been compared to boutique audiophile amps costing substantially more. For the power and sound quality, this amp is a bargain (even at full retail price).
See also
this (long) discussion here on AC for some insight into how great the Class D Audio amps sound.
As you can see from the pictures, I am not using the gain-setting potentiometers. I am using fixed resistors. Note, though, that I installed them with modular connectors. I did not solder directly to the board. So you can easily use the pots provided by Class D Audio (included), or your own fixed resistors.
In general, there are no modifications to the either board (except the gain-setting change mentioned above, which is completely and easily reversible).
Most of the wiring is teflon-coated silver wire.
I have more pictures too, please let me know if you want to see something that isn't shown here.
Asking: $
575 525 475 450 shipped (USA contiguous 48 only).
PayPal accepted. Will ship when funds clear.
Feel free to pickup: in the city of Chicago, Illinois.
