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Model no:   QA-801
QA-801.jpg  

line stage fully balanced pre-amplifier
Full balanced input , balanced amplification and balanced output state-of-the-art pre-amplifier has an ultra heavy current tube rectifier power supply with oil filter capacitors, normal/slow selector switch for different music requirements, L / R channel separate volume control to perfectly tune your sound system. All components are optimally selected in order to achieve highest sound quality standards.

The output buffer stage can change with over 10 different types of tubes (6G6/6L6/6V6/6Y6/6K6/EL34/6550/KT66/KT88/KT90/KT100) for exact tunning to match the rest part of your system.

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Specification
No. of input 2 sets of  balanced  input, 1 set of RCA input
No. of output 1 RCA and 1 balanced pre-amp output , 1 record output
Freq response 1Hz - 150Khz (-3db)
S/N better than 80 db
Distortion less than 0.2% at 1Vrms output
Gain x10- x15 depend on tube
Phase 180deg inverted
manufacturing hand-wire point to point
Tubes used 4 x 6SL7 + 4 x 6G6G (buffer option: EL34/6L6) + 5U4G
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1 year warranty under normal operation condition
standard chassis : Gold/ Black/Metallic  MDF , Aluminum chassis

(optional chassis :  Mirror steel, solid-oak )

 

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