Audio Research LS7 Pre-amplifier (Used)

by syam09 Fri Jul 23, 2010 8:12 pm

Audio Research LS7 Pre-amplifier (Used) Dscf2618

One unit of used Audio Research LS7 valve Pre-amplifier for
sale. All valves have recently been changed with new sets. Good condition 8/10. Made in the USA.

Specifications

Frequency response : ± .5dB, 1.0Hz to
100kHz -3dB points below 0.1Hz and above 300kHz.

Distortion (THD) : Less than .01% at
2V RMS output. (Typically .005% in midband).

Gain : Main
output - 13dB unbalanced

Input impedance : 100K ohms.

Output impedance : 200 ohms main output.
Recommended load 60K ohms and 100pF (20K ohms minimum and 1000pF maximum)

Rated outputs : 2V RMS 1Hz to
100kHz, all outputs, 60K ohm load (maximum output 25V RMS at 1/2% THD into 100K
ohms)

Tube complement : (4)
6922/E88cc dual triode

Weight
: 9.8 lbs. (4.5 kg) Net, 18.8 lbs. (8.5 kg) Shipping

Price RM2890 (negotiable). Location in KL. Please call
019-9578118 Sham for those who are interested.