Unfortunately we don't have the original packaging but we will ensure it is safely packed before sending it out.
Serial Number: 49146011
The original retail price was £12,000
*Serviced by our engineer in October 2025.
Specification
Category
Details
Model
Audio Research Classic 60
Type
Stereo power amplifier (hybrid tube / solid-state)
Output Power
60 W per channel into 16 Ω (15 Hz-20 kHz) with <1% THD according to spec; typical measured about 62 W at 1 kHz.
Power Bandwidth (-3dB)
~ 12 Hz to 40 kHz
Input Sensitivity
550 mV RMS for full rated output
Input Impedance
100 kΩ nominal
Output Regulation / Damping Factor
Approx. 0.3 dB change from 16 Ω to open circuit (nominal output impedance ~0.56 Ω) — damping factor ~30.
Power Consumption
At rated output: ~500 W; maximum ~700 W; idle ~370 W.
Tube Complement
8 × 6550 output tubes (4 per channel) plus 4 × 6FQ7/6CG7 driver tubes
Dimensions (W × H × D)
480 mm × 180 mm × 400 mm (19″ × 7″ × 15¾″)
Weight
~28.6 kg (63 lbs) net
Features / Construction
Triode-configured output stage, automatic bias, DC servo balance, hybrid design combining tubes and solid-state; dedicated fans for cooling.
Resources & Reviews
Stereophilemeasured the Classic 60 and found excellent performance: flat response across the audio band, very low crosstalk (<-120 dB), and measured output impedance lower than typical tube amps.stereophile.com
The Power Bandwidth and dynamic capability were praised: though only rated 60 W, reviewers report that in practical listening this amp “punches above its specification,” driving many demanding loudspeakers with authority.stereonomono.blogspot.com
If you have any questions don't hesitate to reach out to us!
Please note: International shipping is available for this item. If you are interested in purchasing this item, we ask you to contact us at info@hificonsultants.co.uk with your address details prior to checkout. We will then supply you with a quote to cover the shipping costs and any associated fees for delivery to your chosen location. Please refer to our Shipping Policy for more detail.
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