Hybrid Power Amps

Model no: SA-700
Typical retailer / reseller price C$8,000 up

Direct-out-of-the-factory price C$4,180 Untitled Document [US$ 3553]

350W x 2ch (@ 4ohm) / 200W x 2ch (@ 8ohm)

Organic analog high power single-ended tube hybrid Super Amplifier

This is our state-of-the-art tube hybrid Super Amps, which combines the advantage of high bias Class AB transistor amp's tight bass and good speaker control, with single-ended pure class A vacuum tubes amplification (warm and sweet sound with excellent depth, wide open and airy sound stage). The output transformer of old-school SET amplifier is replaced with a super high dynamics and high power pure analog class AB solid-state transformer, which can output max. 350W of power per channel at 4 ohm loading. Super high speed speaker driving circuit design ensure fastest attack response as well as extreme dynamics. Built-in DC offset speaker protection circuit for safety operation even under extreme condition. The tube section is working in pure class A single-ended operation in order to achieve the purest and most natural tonal quality. One tube for each channel ensures maximum channel separation.

This amplifier has a very flexible tube rolling capabilities, the front tube section can use tons of different power tubes like 6SL7, 6SN7, 6SU7, ECC32, ECC33, ECC35, 5961, 5962, CV181...etc. With optional 8 pin to 9 pin converter, can use 6DJ8, 6922, ECC88, ECC188, ECC288....etc. The default output tube use the 6L6G (alternatetubes can use KT66, KT77, KT88, KT99, KT100, KT120, KT150, 6550, EL34, 5881, 6CA7, 6V6, 6K6, 6F6, 6G6, 6Y6 ...and all compatibles)

Since the tube section is designed with the most organic non-feedback pure class A single-ended circuit, the variation in gain of unmatched tubes might show difference. The amp already taken care of this issue so Left and right separate gain control included, even use hard to match NOS tubes can still achieve a perfect balance for both channels.

This unit comes with regular / airy selector, with this feature any speaker can achieve the best sonic performance, even darker sounding vintage speaker can open up without the need to add super tweeters.

If you were unaware of this amplifiers construction, and you judged the sound quality by listening only, you would believe it was a pure tube power amplifier and not a hybrid.You can then have both the smooth and silkiness of single-ended sound with very good punch, rich and well controlled and extended bass.

Delux high gloss solid-oak side panels for puriest and most natural sonic performance.

We strongly believe no other manufacturers can offer such a low cost high power amplifier with so good in sound quality. Sonic performance can easily surpass those selling 5 - 10 times more expensive in the industry.



No. of inputs 1 set of RCA + 1 set of XLR balanced input 
No. of outputs 1 set of speaker outputs (4- 32 ohm)
Freq response 5Hz - 100Khz (-3db)
S/N better than 100 db at full power output, norminal THD < 0.1% at 1W output
Gain ~x30(~30db) when use 6SL7 in front (default)

180deg phase inverted

manufacturing hand-wired point to point for the tube section
Tubes used

2 x 6SN7 (alt: 6SL7, 6SN7, 6SU7, ECC32, ECC33, ECC35, 5961, 5962, CV181..etc)

2 x 6L6GT (alt KT66, KT77, KT88, KT99, KT100, KT120, KT150, 6550, EL34, 5881, 6CA7, 6V6, 6K6, 6F6, 6G6, 6Y6 ...and all compatibles)

 Output power 350W x 2 (4 ohm) / 200W x 2 (8 ohm)


1 year parts and labor warranty under normal operation conditions
standard chassis : all solid aluminum with solid-oak side panels.

(optional chassis :  all solid-oak, super-gloss MDF, metallic MDF, black piano....etc) with additional cost


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