Model no:   QA-115-REG

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STR-103 Super rectifier tubes upgrade for 5U4G ( C$480 include two 866A tubes)

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

Using the 6SL7 tube as the amplification, and 6G6G tube as the output buffer section, this unit is built with a 5U4G tube rectifier and an all tube regulated power supply section(which gives you the best price performance fully balanced pre-amplifier). All hand-wired to the highest possible standard. Employing a totally non-negative feedback design, this unit offers the most organic open and airy sound that can be achieved.

This pre-amp offers tight and punchy bass control, a rich and sweet mid range, open silky and airy highs in one single unit. It is also superbly quiet due to it regulated power supply.

Not a single transistor was used in this very specially designed unit, so a superlative tube sound can be achieved. You will experience a super open/warm/rich/airy/smooth tonal quality and sonic performance. Experienced by your own ears, you will just love it immediately! This unit is suitable for almost any type of music with exemplary performance.

Now available with a super rectifier tube up-grade for the 5U4G, this can greatly enhance the dynamics, high and low frequency extension and bass punch. A Stand-by switch for pre-heating of the rectifier tube ensures the longest lifetime operation. Rectifier tubes are replaceable with high quality ceramic sockets installed.

add 0/180 deg phase control switch with additional of C$150

(optional chassis : Mirror steel, black piano , solid-oak )