Audio Research VT-50

Selling my much-loved
Audio Research VT50 Tube Amp.  I had the tubes replaced and biased by a
local Audio Research dealer, Audio Alternative in Fort Collins.   This work was completed in mid-May of last
year 2017 and have less than 100hrs on them. 
The tubes were 6550's purchased through Audio Research. 

I have rated it a 6/10 partially due to age and a scratch on
the left side panel, front right handle, and in the vented top sheet. 

I am the second owner of this amplifier having purchased it
in 2008.

I will ship in the original audio research boxes.

I will accept paypal and will cover the paypal fee at the
asking price.

Freight will be paid for by the purchaser.

The below information is from Audio Research Database

Power output     45
watts per channel continuous from 30Hz to 15kHz. Approximate actual power
available at "clipping" 50 watts (1kHz)

Power bandwidth             (-3dB
points) 12Hz to 45kHz

Frequency response        (-3dB
points at 1 watt) 1.5Hz to 50 kHz

Input sensitivity 1.95V
RMS (Bal or SE) for rated output. (22.8 dB gain into 16 ohms.)

Input impedance              200K
ohms Balanced, 100K ohms Single-ended

Output regulation            Approximately
1.3dB 16 ohm load to open circuit

Overall negative feedback            8.5
dB

Damping factor 6

Distortion            1kHz
total harmonic distortion typically 1% at 45 watts, below .05% at 1 watt.

Slew rate             10
volts/microsecond

Rise time             7
microseconds

Hum & noise      Less
than 0.25mV RMS < 100dB below rated output (IHF weighted, input shorted)

Power supply energy storage      354
joules

Power requirements        105-125VAC
60Hz (210-250VAC 50Hz) 275 watts at rated output, 330 watts maximum, 200 watts
at "idle"

Tube complement            (2
matched pairs) 6550C, (2) 6922 driver; (2) 6922 input.

Dimensions         19"
(48.3 cm) W x 7" (17.8 cm) H x 15" (38.1 cm) D. Handles extend
1.5" (3.8 cm) forward

Weight  41 lbs. (18.6
kg) Net; 54 lbs. (24.5 kg) Shipping.