Model no: QA-113-BAL-Mk2

Using the best sounding mid-high frequency 6G6G tubes as both the amplification and output buffer section, this unit is also built with a 6X5 tube rectifier which gives you the best ST size tube sound with such a low price. All hand-wired to the highest possible standard.

A true balanced input and output stage gives you enhanced dynamics and depth of sound stage. This is a very special design, as even with only one side balanced (input or output), nevertheless, you will still get an enhancement, due to the balanced connection. Offering the same superlative sound of our other balanced pre-amps.

You can even change the 6G6G to 6V6G, 6K6G, 6F6G, 6Y6G, KT66, EL34, 5881, 6550...etc to get the different sound qualities you like.

Upgrade 6x5 into 5U4G rectifier with enhanced Tx add $250 only

Or you can add our super rectifier STR-104 for further enhancement

With this super rectifier adaptor, you can use 300B, 2A3 , 45 , 50 , 80, 83, 1616 , 3B28 or 866A as rectifier tubes option.

(Note: The price quoted below is a special deal for newly order unit only, modification of existing unit will be around $300 higher than the following prices due to more works for disassemble of the original circuits)

Level 1 upgrade : (+ C$200)

Special designed "Super-Drive" circuit, output impedance lowered to 200ohm (can drive any power amp inputs from 600ohm up to infinity) with better bass control and punch , better definition and improved in overall tonal quality. By adding this upgrade, it sounds like the output with 10 pieces of power tubes being installed . With this level of upgrade, just add another $50 and you can have a headphone output with enough power and current to drive your headphone directly.

Level 2 upgrade : (+ C$500)

Level 1 upgrade + Enhanced input circuit design with increase of max. input levels , further lowering of distortion and increase dynamics, as well as better air and openness . Enhanced components quality for better sonic reproductions with higher resoltuions.

Level 3 upgrade : (+ C$800)

Level 2 upgrade + Enhancement in components for further sonic enhancement with more 3D holographics soundstage.

Level 4 upgrade : (+ C$1000)

Level 3 upgrade + Enhanced transformer with 5U4G tube rectifier for better air , smoother and sweeter sound quality

Additonal up-grade options:

0deg / 180deg inverted phase switch add C$100

Solid oak chassis add C$150

Super delux multi-tone solid-oak chassis with super high gloss finish add $500

(Note: The price quoted is a special deal for newly order unit only, modification of existing unit price will be higher)

(optional chassis :Mirror steel, solid-oak )