Audio Research LP1 Phono stage, Last unit New in box, 3 year factory warranty.

This is my last LP-1 left. 

Selling a new sealed in box Audio Research LP1 phono stage. This unit is in the Natural finish, I have some the the specifications listed below from the Audio Research website. 

 TECHNICAL SPECIFICATION

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

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