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Price: $695.00
Product ID : SDS-470C
Manufacturer: Class D Audio USA
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SDS-470C Audio Power Amplifier by Class D Audio.This amp features our newly designed State of the Art aluminum Enclosure with 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 22 Pounds.

Model SDS-470C
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) 20/ 9.1
Shipping Weight (lbs/kg) 22/ 10.0
Manufacturer Class D Audio

Product Reviews

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Reviewed by customer
08/15/2016 - 01:48:36 PM
An amazing amplifier at an incredible price
I first spoke to Tom in January, he was patient and helpful. I then ordered one of his new amps a month ago. My impressions are as follows:
This amplifier should be compared to amps costing two to three times as much. The pictures on the website do not do it justice. It is built like a tank!
I have three different amps, a tube amp, a class A amp and now this class D.
The SDS-470 has amazing imaging, bass slam and does not suffer from the midrange problem that so many class D amplifiers do. In fact if I had to compare it I would say it has the slam of the class A, with the sweetness of tube amplification.
I have no idea what secret recipe Tom is using in his amps. I can tell you one thing though....I am still looking for the tubes in far have not found one! Immensely satisfied! Purchase one now, before he raises the price!
Reviewed by customer
08/15/2016 - 01:47:58 PM
Yes amazing
Grandaddy ‘ He’s simple, he’s dumb, he’s the pilot.
(A kind of ‘magic) Les claviers sont devenus texturé, Jason Little est là, devant nous, l’ambiance est spatiale…

Le charme de l’album ‘hourglass’ de James Taylor…
se révèle (sonorité tubes et plus…). Entouré de ses choristes au positionnement détaillé. Les basses, très présentes sur cet album sont d’une solidité soutenues. Les cuivres sont naturels, le feeling opère…

Steeve Evans Quartet, ‘2 sets’
Son approche du chant tout en subtilité nous émeus ici. De façon net et précise l’ampli soutien cette prestation sensuel sans rien apporté de ‘scientifique’ à l’écoute. Place à la sensualité, place à la musique.

Poulenc, Concerto for Organ, Michael Murray, Atlanta S.O. Robert Shaw, Telarc.
Si la puissance d’un amplificateur est essentielle pour certains passages avec des enceintes à faible rendement, encore faut-il savoir la maintenir sans s’essoufflée. Ici encore le 470 est exemplaire, il pousse sur les Dyanaudio, leurs en donnant pour leur appétits.
Il ne semble pas avoir de faille dans ce classe D. Le spectre est couvert avec linéarité. La définition empreinte des micro-détails n’est pas froide et chirurgicale mais envoutante. Absence d’agressivité et douceur des plus grands tubes.
N’écoutant que des amplis à tubes depuis plusieurs années tout ce que je peux dire c’est…’maybe it’s amazing but true’
Chapeau Tom.
Reviewed by customer
08/15/2016 - 01:47:14 PM
Over the 23 years that I have had my ML CLSII speakers,I have thrown many many amps at it.No amp has given so much for so little expenditure as the SDS-470C.The only amp that has offered any competition was an ARC VS-110 with highly upgraded tubes.A remarkable achievement!Thanks from Raanan
Reviewed by customer
08/15/2016 - 01:46:32 PM
The Velvet Hammer Review
The Class D Audio SDS-470C is a very interesting stereo power amplifier that merits the attention of any audio enthusiast. Prodigious power output is only the tip of the iceberg with the SDS-470C. The soumd has the "black" background typically associated with very refined and far more expensive amplifier and the volume controls allow for optimal gain matching. My particular amplifier is used to power four eight ohm sealed box subwoofers based on the Acoustic Elegance SBP-15 and it provides amazing control and finesse. Used with the main speakers, the Pi Speakers 6Pi cornerhorn, it provides excellent performance with fine midrange detail and delicate highs. Highly recommended