Hybrid Power Amps

Model no: SEH-101 / SEH-101-EX / SEH-101-UX
C$1,880 Untitled Document [US$ 1504] / C$2,080 [US$ 1664] / C$2,480 [US$ 1984]

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140W x 2ch high current single-ended tube hybrid power amplifier

This is one of our state-of-the-art design hybrid power amplifiers, which combines both the advantage of a transistor amps high current drive (tight bass and good speaker control) and single-ended vacuum tubes amplification (warm and sweet sound with good depth, sound stage, and air). The output transformer of SETamplifier is replaced with a super high current, high damping factor solid-state transformer, which can output max. peak music power of 140W/ch at 4 ohm loading , this amplifier can even drive down to 2 ohm with reasonable loudness. Built-in over-temperature and over-current protection for safety operation even under extreme condition. The tube section is working in an optomized pure class A single-ended operation mode to achieve the purest and most natural tonal quality.

This amplifier has a very special feature of "Solid-state only" or "Tube and Solid-state" mode selector, you can choose it to use as pure solid-state high power high current amplifier, or you can convert it into a single-ended tube hybrid power amplifier. The tube section can even use tons of different power tubes like 6550, EL34, 6L6, 6V6, 6F6, 6K6, 5881, 6CA7, KT66,KT77,KT88...etc. The UX version can even take the KT120 and KT150 power tubes , as well as EL32 NOS Mullard tubes.

This unit built with input level / gain control, this feature can make this amp use as a single input integrated amplifier, or use in multiple amplifier (bi-amp / tri-amp ) mode , and can easily balance the gain between different power amplifiers..

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

Upper set of photos shows regular version (SEH-101) ,

middle set of photos shows the enhanced power capacitor version (SEH-101-EX)

Lowest set of photos shows the ultimate version (SEH-101-UX) with dual mono power supply, KT120 power tube, EL32 capability , also built with super heat sink chassis

No. of inputs 1 set of RCA input 
No. of outputs 1 set of speaker outputs (2 ohm to 16 ohm)
Freq response 1Hz - 100Khz (-3db)
S/N better than 90 db at full power
Gain x20 (26db)


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

2 x 6L6GT (alt: 6550, EL34, 6L6, 6V6, 6F6, 6K6, 6G6,6Y6,5881, 6CA7, KT66,KT77,KT88)

UX version : KT120 x 2 (alt: KT66,KT77,KT88,KT90,KT99,KT100,KT150, EL32, EL34, CV1052, VT52, 6V6, 6G6, 6K6, 6Y6 , 6L6, 6550, 6CA7, 5881...etc)



1 year parts and labor warranty under normal operation condition
standard chassis : Silver aluminum face plate with black anodize aluminum body

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


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