Audio ResearchLS 27usedAudio Research LS 27 Line-Stage PreamplifierI am the original owner of this LS 27 and bought it new from an authorized dealer about 2 years ago. It has only 523 hours on it. Runs perfectly, no defects of any kind. Buy with confidence; chec...3900.00

Audio Research LS 27 Line-Stage Preamplifier

Listing ID: lis7ji48 Classified 
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Condition
9/10
Payment methods

Contact seller after sale to pay viaCertified check

Ships fromBloomington, IN, 47401
Ships toUnited States
Package dimensionsunspecified
Shipping carriersUPS or FedEx
Shipping costSpecified after purchase
Original accessoriesBox, Manual
AverageResearch Pricing

I am the original owner of this LS 27 and bought it new from an authorized dealer about 2 years ago.  It has only 523 hours on it.  Runs perfectly, no defects of any kind.
Buy with confidence; check my perfect feedback.  Buyer will pay the Paypal fee.

TECHNICAL SPECIFICATION

FREQUENCY RESPONSE
+0-3dB, 0.2Hz to 160kHz at rated output (Balanced, 200k ohms load)

DISTORTION
Less than .01% at 2V RMS BAL output.

GAIN
Main Output: Selectable for each input: 24dB, 18dB, 12dB Balanced output (18dB, 12dB, 6dB SE output). Record output: 0dB (Processor input: 0dB balanced).

INPUT IMPEDANCE
120K ohms Balanced, 60K ohms SE . Inputs (8): Tuner, Phono, CD, Video, Aux 1, Aux 2, Monitor, Processor (XLR and RCA connectors).
 
OUTPUT IMPEDANCE
700 ohms Balanced, 350 ohms SE Main (2). 20K ohms minimum load and 2000pF maximum capacitance. Outputs (3): 2 Main, 1 Main, 1 Record (XLR and RCA connectors).

OUTPUT POLARITY
Non-inverting.

MAXIMUM INPUT
Low Gain: 48V RMS BAL, 24V RMS SE, Medium Gain: 24V RMS BAL, 12V RMS SE, High Gain: 12V RMS BAL, 6V RMS SE.

RATED OUTPUTS
2V RMS 1Hz to 100kHz into 200K ohm balanced load (maximum balanced output capability is 15V RMS at less than 0.5% THD at 1kHz)

CONTROLS
Rotary volume selector (104 steps) and rotary input selector. Push buttons: Power, Mono, BAL/SE, Proc, Monitor, Mute. Also remote buttons: Display, Bal L, Bal R, Hours, Invert, Gain.

POWER SUPPLIES
Electronically regulated low and high voltage supplies. Automatic 50 sec. warm-up/brown-out mute. Line regulation better than .01%.

NOISE
1.3uV RMS residual IHF weighted balanced equivalent input noise with volume at 1 (100 dB below 2V RMS output).
 
TUBE COMPLEMENT
2-6H30 dual triode. (Hybrid JFET/tube audio circuit, solid-state power supply).

POWER REQUIREMENTS
105-130VAC 60Hz (210-260VAC 50/60Hz) 50 watts maximum.

DIMENSIONS
19" (48 cm) W x 5.25"(13.4 cm) H (standard rack panel) x 13.3"(33.8 cm) D. Handles extend 1.50" (3.8 cm) forward of the front panel.

WEIGHT
16.3 lbs. (7.4 kg) Net; 23 lbs. (10.5 kg) Shipping.
Specifications subject to change without notice.

 

Questions for the seller
Hi, would you consider posting to australia? Serious buyer. Regards divesh
Hi. I am reluctant because of the greater risk for damage. If you would pay for 1 or 2 day air by Fed Ex I might consider it. Phil

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