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Price: $630.00
Product ID : SDS-440CS
Manufacturer: Class D Audio USA
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SDS-440CS featuring SDS-440C Class D Audio amplifier with RCA inputs, fixed gain, with no gain controls. This amp features our newly designed State of the Art aluminum Powder-Coated Enclosure and one of our top of the line SDS amplifiers. 220W RMS Per Channel into 8 ohms, 440W RMS Per Channel into 4 Ohms. Size: 12" X 12" X 3.5" Shipping Weight 20 Pounds.

Available in 115VAC and also 230VAC for International Customers.

Model SDS-440CS
Number Of Channels 2
RMS Power Per Channel 8 Ohms 220W RMS X 2
RMS Power Per Channel 4 Ohms 440W 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 30
Voltage Gain for XLR Input 30
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) 18/ 8.2
Shipping Weight (lbs/kg) 20/ 9.1
Manufacturer Class D Audio

Product Reviews

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Reviewed by customer
08/15/2016 - 01:43:48 PM
Great amp,especially for the price
I bought this ClassD Audio SDS440CS amp in Feb of 2013 as a replacement for my class A/B Aragon 4004, which had a channel go out. I needed a high powered amp that was capable of driving my lower efficiency (86db/1 watt) and low impedance (4 ohm) Magnepan 2.7QR speakers for both 2-channel music listening and home theater usage. After 5 months of ownership, I can say unequivically that this is a great amp for both purposes. Initially, I was concerned whether the 440, at 1/3rd the size, weight and price of the Aragon could properly drive my notoriously power hungry speakers. But this amp powers the Magnepans better than my older Aragon ever could. It's very powerful(440 watts@4ohms) and very dynamic while also maintainiing a very low noise floor.
This amp is neutral while being very detailed from top to bottom. This neutral quality is critical in tailoring your system to your preferences. If you want an accurate and neutral system, just pair the amp with a neutral and accurate preamp and speakers. If you prefer a warmer system, just pair it with a warmer preamp. I'm using a tube preamp with NOS (new oldstock) Mullard tubes and have acheived the sound I like; a touch to the warmer side of neutral. This amp passes along the slightly warm character of my VTL preamp without hindrance. If I wanted a more neutral system, I would use a solid-state preamp or a more neutral tube preamp such as an Audio Research.
Perhaps the most unusual quality of this amp is how 'green' it is. It consumes so little electricity to,run that I just keep mine turned on 24/7. Even after hours of high volume use, it only becomes slightly warm to the touch. I highly recommend the SDS440CS amp without reservation.