STATUS - SOLD
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Description :
To begin with, forget any comparison to ordinary passive line-stage controls. The active LS1 goes far beyond them - in musicality, in technical innovation, in quality of manufacture. Its predigree, in other words, is pure Audio Research. It includes Audio Research's famous hybrid tube/solid state circuit technology, unstinting parts and manufacture. The LS1 offers owners the exceptional convenience of seven inputs, including the new Direct Gain Path, which bypasses all major controls except Gain - and provides a degree of resolution that challenges the best preamps in the world. The LS1 features Audio Research's own oxygen-free Litz wire in critical circuit paths, as well as audiophile-grade connectors selected for their sonic purity. And for audiophiles who own signal processor or who bi-wire, the LS1 offers two main outputs.
Specifications :
Frequency response..........................± .5dB, 5 Hz to 50 kHz
Distortion (THD)................................< .01%
Noise & hum.....................................100 dB below 1V RMS output
Gain................................................Direct input to main output: 21 dB.
.................................................CD input to main output: 11 dB.
.................................................High level inputs to tape output: 0dB.
Input impedance................................50K ohms (150K ohms CD, 100K ohms Direct).
Output impedance.............................250 ohms main output. Recommended load 60K ohms and 100pF.
.............................(20K ohms minimum and 1000pF maximum).
Maximum inputs...............................20V
Rated outputs...................................2V RMS 5Hz to 50Hz, all outputs, 60K ohm load
....................................(main output capability is 50V RMS output at 1/2% THD at 1kHz into a 100K ohm load with 5V RMS input).
Power supplies.................................Electronically-regulated low and high voltage supplies. Shielded toroid tranformer.
................................. Line regulation better than .01%.
Tube complement.............................(1) 6922
Power requirements..........................100-135VAC 60Hz (200-270VAC 50/60Hz) 50 Watts maximum.
Dimensions(w x d x h)......................48.5 x 31.5 x 14 cm
Weight............................................6 kg
Miscellaneous :
Made in...........................................USA
Condition.........................................8 / 10 (Decent condition)
Product information :
http://www.arcdb.ws/LS1/LS1.html
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