With a muscular 450 WPC into 8 ohms and stunning sonic performance, the DS-450 stereo amplifier provides high performance, high efficiency, and high value. Incredibly dynamic and quick on its feet, it has a big "jump factor." Bass is deep, harmonically rich, and forcefully controlled. The midrange is open, tightly focused and uncannily transparent. Highs are extended, detailed and grainless. You need to hear it for yourself to appreciate its remarkable musicality!
About this unit
Super condition, factory refurbished, demo Audio Research DS-450 stereo amplifier in silver finish. Unit comes in original packaging with power cord, user's manual, and Audio Research factory warranty.
Amp is rated 7/10 for light use and minor cosmetic blemishes associated with normal wear (see photos). These are purely cosmetic and do not affect the functionality of the unit.Specifications
Power output: 450 watts into 8 ohms (550 watts per channel into 4 ohms), both channels driven, 1% THD. (700 watts into 4 ohms, one channel driven)
Power bandwidth: (-3dB Points) 5Hz to 45 kHz into 8 ohms.
Input sensitivity: 2.9V RMS for rated output. (26dB Gain) single-ended or balanced.
Input impedance: 150K ohms single-ended, 300k ohms balanced differential.
Output regulation 0.02dB 8 ohm load to open circuit.
Damping factor: 440
Hum & noise: 300 microvolts RMS (105dB below rated output IHF A-weighted.)
Power supply energy storage: 1239 joules
Power requirements: 100-125VAC 60Hz (200-250VAC 50 Hz) 950 watts at rated output (400WPC 8 ohms) 1300 watts at 500WPC 4 ohms, 1300 watts maximum. 55 watts idle.
Output polarity: Non-inverting. Balanced pin 2+ (IEC-268).
Dimensions: 19" (48 cm) W x 7" (17.8 cm) H x 18.4" (46.7 cm) D. Handles extend 1.5" (3.8 cm) forward. Output connectors extend 1.5"(3.8 cm) behind rear panel.
Weight: 55.8 lbs. Net; 71 lbs. ShippingAdditional Information
Please call 734.662.3595 and ask for Richard or Amanda if you have any questions about this product. We make every effort to update our ads quickly when inventory fluctuates, but we encourage you to call and check product availability, as we are also a brick and mortar store.
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