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Audio Research LS7 Preamplifier

Audio Research LS7 Preamplifier
Audio Research LS7 Preamplifier
Audio Research LS7 Preamplifier
Audio Research LS7 Preamplifier
Audio Research LS7 Preamplifier
Price : RM 5,800.00

Model : LS7


Used unit with 1-Year Warranty

-----------------------------------------------------  OVERVIEW  --------------------------------------------------

 

 Dimensions & Weight 

Product Dimensions: W 48 cm x H 13.4 cm x D 26 cm
Net Weight: 4.5 kg
Shipping Weight: 8.5 kg

 

 Frequency Response 

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

 Distortion 

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

 Gain 

Main Output: -3dB unbalanced           
Tape Output: -0db       

 

 Input Impedance 

  • 100K ohms. Input (5): Tape, Tuner, CD, Video, Aux.

 Output Impedance 

  • 200 ohms main output.​ Recommended load 60K ohms and 100pF (20K ohms minimum and 1000pF maximum). 

 Maximum Input 

  • 20V maximum.

 Rated Outputs 

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

 Controls 

  • Gain, Input selector. Toggle switches: power/off, mute/operate.

 Power Supplies 

  • Electronically-regulated low and high voltage supplies. Line regulation better than .01%.

 Noise 

  • 15uV RMS maximum IHF weighted noise at main output with gain control minimum (more than 102dB below 2V RMS output).

 Tube Complement 

  • (4)-6922/E88cc dual triode. Solid-state power supply.​

 Power Requirements 

  • 100-135VAC 60Hz (200-270VAC 50/60Hz) 130 watts maximum.​

 

 Audio Research LS7 Preamplifier Owner's Manual

https://www.manualslib.com/download/1005400/Audio-Research-Ls7.html

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