Audio Research LP-1 Phono PreAmplifier

Selling my low hour Audio Research LP1 Phono Stage. This phono stage has brought me a lot of joy over the past year and I am extremely reluctant to sell however I have recently upgraded. I feel that it is a true bargain at my asking price. All original packaging is included.  Now for the technical stuff:
Specifications  FREQUENCY RESPONSE: ± 0.3dB of RIAA, 10Hz
to 20kHz.  DISTORTION: Less than .019% at .5V RMS SE
output.
GAIN: 47dB at 1kHz.  SWITCHES: Power, Mute.  INPUT IMPEDANCE: 47k ohms (0.7 to 7mV high
output cartridge recommended).  OUTPUT IMPEDANCE: 5.5k ohms Single Ended
(Single Ended RCA connectors). 60k ohms
minimum load and 100pf maximum
capacitance.  OUTPUT POLARITY: Non-Inverting.  MAXIMUM INPUTS: 40mV RMS 1kHz, 100mV
RMS 10kHz.  RATED OUTPUTS: .0.5V RMS Single ended into
100k load (maximum output 15V RMS at 1%
THD at 1kHz).  POWER SUPPLIES: Electronically-regulated low
and high voltage supplies. Automatic 40
sec. warm-up/brown-out mute. Line
regulation better than .01%.  NOISE: 0.4µV RMS IHF weighted equivalent
input noise, shorted input 74dB velow 2mV
RMS 1kHz input).  TUBE COMPLEMENT: (1) 6H30 dual triode.  POWER REQUIREMENTS: 100-135 VAC 60Hz
(200 - 270VAC 50/60Hz) 35 watts maximum.  DIMENSIONS: 11.3" (33 cm) W x 4.5" (11.4 cm)
H x 8.6" (21.8 cm) D. Rear chassis fittings
extend 0.6" (1.5 cm).
WEIGHT: 9 lbs