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Audio Research LS27 - Technical Specifications; Performance Data; Dimensions and Power

Audio Research LS27
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Specifications
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 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 (100dB below 2V RMS output).
Tube Complement: 2-6H30P 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.
©2010 Audio Research Corporation.
3900 Annapolis Lane North
Plymouth, MN 55447
763.577.9700
www.audioresearch.com
audio
research

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