With the introduction of the DS-series amplifiers, Audio Research has proven that high power output, great sound quality, and high efficiency can all come together in a single package. The DS225 adds another chapter to the Definition Series amplifier story, taking the proven format of the DS450 and scaling it down slightly in size and power, producing an ample 225 WPC into an 8-ohm load.
Like its two predecessors, the DS225 has an uncanny ability to resolve information and place musicians firmly within a large soundstage – even at low levels. You’ll hear none of the “dead zone” effect at low volume that is common to other conventional switching designs. Bass control, reach and impact are all superb, while musical dynamics are instantaneous; the DS225 is very quick on its feet. In addition, the amplifier has an extremely low noise floor, allowing instruments to emerge from a black background. Tonal balance is neutral, fine grained and relaxed.About this unit
Factory refurbished open box unit Audio Research DS225 Stereo Power Amplifier, in Silver finish. Unit comes in original box, with owner’s manual and power cord. Outer box shows some signs of wear, which are purely cosmetic and do not affect the unit.
Unit is rated 9/10.Warranty
Manufacturer’s warranty limited to the balance of original remaining warranty.
Note: Photos are stock images. This unit has been recently discontinued by Audio Research.SPECIFICATIONS
225 watts per channel into 8ohms, 1% THD.
360W per channel into 4ohms, both channels driven
-3db points at 1W) 5Hz to 55kHz
2.15V RMS for rated output (26dB Gain) single-ended or balanced.
150K ohms single-ended, 300k ohms balanced differential
0.06dB 8ohm loaded to open circuit (Damping factor 167)
100-125VAC 60Hz (200-250VAC 50Hz) 488 watts at rated output (225WPC into 8ohms) 758 watts at 360WPC into 4ohms, 35 watts idle, standby 1W
19" W (standard rack panel) x 5¼" H x 14¼" D (front panel back).
Output connectors extend 0.9" behind rear panel.
34.9 lbs Net; 41 lbs Shipping.
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