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Model no: QA-806

QA-806.jpg  
line stage full balanced pre-amplifier
 

This is a fully balanced input and balanced output state-of-the-art pre-amplifier which boasts an ultra high current tube rectified and tube regulated power supply, plus a choke with NOS and oil filter capacitors . A separate filament Tx and high-voltage Tx is included to enhance the dynamics and clarity. A Choke / bypass switch enables users to fine-tune the speed of this pre-amp. This super pre-amplifier is specially designed for those who like both very sweet sound quality , high dynamics, very musical, high definition, and a very detailed and deep sound stage. (Everything good that you are expecting is inside this pre-amp! )

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

 

Specifications
 
No. of inputs 2 sets of XLR inputs, 1 set of RCA inputs
No. of outputs 1 set of RCA+ XLR balanced pre-amp outputs , 1 set of record outputs
Freq response 1Hz - 200Khz (-3db)
S/N better than 80 db
Distortion less than 0.2% at 1Vrms output
Gain x15- x20 depending on tubes
Phase 180deg inverted
manufacturing hand-wired point to point
Tubes used 2 x 6SL7 + 2 x 6G6G(option:EL34/6Y6G/6L6G) + 6X5  + 0C3 + EF86 + 6AS7G
   

 
  1 year parts and labor warranty under normal operation conditions
 
  standard chassis : Gold/ Black/Metallic MDF , Aluminum chassis

(optional chassis : Mirror steel, solid-oak )

 

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