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SDS-470C Class D Audio Amplifier With Upgraded Power Supply. 300W RMS X 2 into 8 Ohm and 600W RMS X 2 into 4 Ohm


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    2018-08-07 14:26:46

    Hi Tom. I ordered the 470C yesterday, and am very excited to receive it. I do have a question about the power supply upgrade. I read that some earlier units benefitted sound quality wise from adding more capacitance to the power supply, and this info was going to be passed along to you. Have you increased the power supply caps. on the standard unit since then? or is that addressed in the upgrade only. I do not listen at head banger levels but I have dahlquist DQ20's and Hales Revelation 3's both of which are 4ohm speakers. Thanks, Russ

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    1. 2018-08-07 15:06:30

      The upgraded power supply is the one with the extra large capacitors. The upgrade does add a little more headroom and can benefit most systems. It sounds like your speakers present a bit of a tough load, so it is possible having the upgrade is probably a good idea. The larger capacitors provide a little extra power reserve that help when listening to very demanding passages, especially at higher listening levels.

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Notice: We are out of the back plates to build the SDS amplifiers. It will be a few weeks to a month before they are back in stock.

SDS-470C with Upgrade Power Supply. This is our SDS-470C amplifier with upgraded and larger capacitors in the power supply. SDS-470C Audio Power Amplifier by Class D Audio.This amp features our newly designed State of the Art aluminum Powder-Coated Enclosure with choice of Black or Silver brushed anodized front . One of our top of the line SDS amplifiers. 300W RMS Per Channel into 8 ohms, 600W RMS Per Channel into 4 Ohms. This amplifier features one of the finest balanced XLR input stages available and also single ended RCA jacks. Either of these inputs can be selected by a switch on the back of the amplifier. You will also see it has adjustable gain control for each channel that are also rear mounted. These can be used to adjust the amp to match output of your other equipment such as matching to the sweet spot of your preamp. They can also be used to setup and balance your room for best performance. Size: 12" X 12" X 3.5" Shipping Weight 20 Pounds.


Model SDS-470C-UPG
Number Of Channels 2
RMS Power Per Channel 8 Ohms 300W RMS X 2
RMS Power Per Channel 4 Ohms 600W RMS X 2
RMS Power in Bridge Mode N/A
Input Sensitivity 2V
Total Harmonic Distortion (THD) Better than .02% (normal listening is about .003%)
Frequency Response 10hZ to 35KHz
Input Impedance RCA 30K
Input Impedance XLR 45K
Voltage Gain for RCA Input Adjustable
Voltage Gain for XLR Input Adjustable
Power Requirements 110VAC or 230VAC
Dimensions (W x H x D) Inches 12" X 3.5" X 13"
Dimensions (W x H x D) Millimeters 304.8 X 89 X 330.2
Product Weight (lbs/kg) 20lbs
Shipping Weight (lbs/kg) 22lbs
Manufacturer Class D Audio
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