Audio ResearchReference 610TusedAudio Research Reference 610T Mono Tube Amplifier PairLike its predecessors, the 610T monoblock is based upon a push-pull, fully balanced vacuum-tube circuit using 6550C output tubes (16 in all). Unlike the earlier models, the 610T uses two 6550C driv...14995.00

Audio Research Reference 610T Mono Tube Amplifier Pair [Expired]


no longer for sale


Like its predecessors, the 610T monoblock is based upon a push-pull, fully balanced vacuum-tube circuit using 6550C output tubes (16 in all). Unlike the earlier models, the 610T uses two 6550C driver tubes, each controlling a bank of eight output tubes operating in unison. Input gain is provided by two 6N1P dual triodes and a 6H30 follower. This means fewer tubes to replace, and a much simpler biasing system: two bias adjustments instead of the 16 required in the REF600 series. Power output is rated at 600+ watts into 4, 8 or 16-ohm loads.

About this unit:

Fantastic condition pair of traded-in Audio Research Reference 610T Mono Amplifiers in silver finish. Amps come with user's manual, power cord, and remote control. Amps will be professionally packed and shipped in boxes from Audio Research.


Amps are rated 8/10 for use and minor wear consistent with age.

Specifications:
Power output: 600 watts continuous at 16 ohms from 20Hz to 20kHz. 1kHz total harmonic distortion typically 0.5% at 600 watts, below .05% at 1 watt. Approximate actual power available at "clipping" 630 watts (1kHz).
Power bandwidth: (-3dB points) 15Hz to 150kHz.
Frequency response: (-3dB points at 1 watt) 1Hz to 200 kHz.
Input sensitivity: 4.2V RMS balanced for rated output. (24dB Gain into 8 ohms)
Input impedance: 200K ohms balanced
Output taps: 4, 8, 16 ohms.
Output regulation: Approximately 0.8dB 16 ohm load to open circuit.
Overall negative feedback: 13dB
Damping factor: Approximately 16
Power supply energy storage: 1.000 joules
Power requirements: 105-125VAC 60Hz (210-250VAC 50Hz) 1700 watts at rated output, 2300 watts maximum, 800 watts at idle, 370 watts standby.
Tube complement: (8 matched pairs) 6550C power output; (1) 6550C regulator; (1) 6H30 regulator amplifier; (2) 6550C driver; (2) 6NIP input, (1) 6H30 follower.
Dimensions: 13.5" (34.3 cm) W x 23" (58.4 cm) H x (20.8" (52.8 cm) D. Handles extend 1.5" (3.8 cm) forward and rearward.
Weight: 170 lbs. (77.2 kg) Net; Shipped in pairs, 495 lbs. (225 kg) per pair.

Additional 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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