Audio Research Reference 75 SE

I am the second owner of this amazing unit. MSRP $11,000.
I bought it here on Audiogon on July 15th, 2021. The unit was released from the factory in October 2020.
The original owner said there was about 700 hours on the tubes. I added about 10 hours to that. I fitted the tubes, turned it on and out poured detailed, warm & holographic sound. I never owned a tube amp before and I guess I prefer the punch, darkness & control of a solid state power amp.
So... You get an Audio Research Reference Amp that looks and sounds perfect for a fraction of the original retail price. I can't see any marks or scratches.
I photographed it as I boxed it up. I'll ship it in it's original box with Instruction Manual - Bias Tool, Screw Driver and Power Cord. I'll also put the unit in a second box with padding for extra protection . Worth the added $25..!
Please let me know if you have any questions and Good Luck..!
Joe
75 watts per channel continuous from20Hz to 20kHz. 1kHz total harmonic distortion typically 0.6% at 75 watts, below 0.05% at 1 watt. Approximate actual power available at ‘clipping’ 76 watts (1kHz).
POWER BANDWIDTH
(-3dB points) 7Hz to 60kHz.

FREQUENCY RESPONSE
(-3dB points at 1 watt) 0.7Hz to 75 kHz.

INPUT SENSITIVITY
1.4V RMS BAL for rated output. (25 dB Bal gain into 8 ohms.)

INPUT IMPEDANCE
300K ohms Balanced.

OUTPUT POLARITY
Non-inverting. Balanced input pin 2+ (IEC-268).

OUTPUT TAPS
8 ohms, 4 ohms.

OUTPUT REGULATION
Approximately 1.0dB 8 ohm load to open circuit (Damping factor approximately 8).

OVERALL NEGATIVE FEEDBACK
15dB.

SLEW RATE
10 volts/microsecond.

RISE TIME
4.0 microseconds.

HUM & NOISE
Less than 0.06mV RMS – 112dB below rated output (IHF weighted, input shorted).

POWER SUPPLY ENERGY STORAGE
Approximately 520 joules.

POWER REQUIREMENTS
105-125VAC 60Hz (210-250VAC 50Hz) 410 watts at rated output, 500 watts maximum, 230 watts idle.

TUBES REQUIRED
2 – Matched pair KT150 – Power Output; 2 – 6H30 Driver.

DIMENSIONS
19" (48.3 cm) W x 8.75" (22.2 cm) H x 19.5" (49.5 cm) D. Handles extend 1.5" (3.8 cm) forward.

WEIGHT
47 lbs. (21.3 kg) Net; 63 lbs. (28.6 kg) Shipping.