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Audio Research LS25 Mk.II
SOLD $5,495.00
APR 2008
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Mint condition
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Black Face Plate
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Original Box & Owner's Manuals
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Full array of Balanced & S.E.
Inputs/Outputs
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Remote Control
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Current ARC 6H30 tube circuit
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Only 1.5 years old!
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One Owner
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1998 - R.R.P.
US 4,995.00
Every possible Bal/S.E. input & output is provided
for.
Classic short throw switches keep the retro thyme.
Adjustable gain stage with low, med and high
settings for each input.
The first ARC Line Stage to use the famous 6H30
Supertubes.
Huge Nichicon power storage caps provide endless
reserves of dynamics.
InfiniCap city!
Dedicated relay's for every input
Huge power supply with power regulator.
Specifications:
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Frequency response |
±.5dB, 1.0Hz to 100kHz
-3dB pionts below 0.2Hz and 400kHz |
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Distortion (THD) |
Less than .01% at 2V RMS
output |
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Noise & hum |
14µV RMS residual IHF
weighted balanced noise output with gain control at minimum
(103dB below 2V RMS output). |
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Gain |
Main Output: Selectable
for each input: 18db, 12dB, 6dB Balanced output. (12dB, 6dB, 0dB
SE output) |
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Record output: 0dB |
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Input impedance |
120K ohms Balanced, 60K
ohms SE. Inputs (8): Tuner, Phono, CD, Video, Aux 1, Aux 2,
Monitor, Processor (XLR and RCA connectors) |
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Output impedance |
650 ohms Balanced, 325
ohms SE Main (2), 20K ohms minimum load and 2000pF maximum
capacitance. Outputs (3: 2 Main, 1 Record (XLR and RCA
connectors) |
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Output polarity |
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Maximum inputs |
28V maximum, BAL, 14V
maximum SE (6dB gain) |
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Rated outputs |
2V RMS 1Hz to 100kHz into
200K ohm balanced load (maximum balanced output capability is
40V RMS at less than 0.5% THD at 1kHz). |
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Power supplies |
Electronically-regulated
low and high voltage supplies. Automatic 40 sec.
warm-up/brown-out mute. Line regulation better than .01%. |
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Tube complement |
LS25 MKII: (2) 6H30 dual
triode |
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Power requirements |
100-135VAC 60Hz
(200-270VAC 50/60Hz) 45 watts maximum |
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Other |
Controls: Volume (104
steps), Gain, Balance, Input. Toggle switches: Power On/Off,
Stereo/Mono, Bal In/SE In, Processor/Input, Monitor/Input,
Mute/Operate. |
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Dimensions |
19" (48 cm) W x 5.25"
(13.4 cm) H (standard rack panel) x 11.75" (29.8 cm) D Handles
extend 1.50" (3.8 cm) forward of front panel. |
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Weight |
18 lbs. (8.2 kg) Net; 28
lbs. (12.7 kg) Shipping. |
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