Pre-Amps - Reference Series

Model no: Reference-1 / Reference-1-RV (Remote volume ver.)
C$4,380 Untitled Document [US$ 3504] / C$4,980 [US$ 3984]

NOS Mullard EL32 x 4 + 6550 x 2 + 274B fully balanced pure tube pre-amplifier

with quad-balanced output transformer + oil coupling capacitors + selectible choke filtering

customer feedback :


Using the NOS Mullard EL32 (can also use VT52 / CV1052 / 6G6 / 6V6 / 6K6/ 6L6 / 6F6 / 6Y6..etc direct plug-n-play ) as front end stage, gives you the most warm and liquid 3D holographic sound stage with superb micro-details . Output stage use the super powerful KT120 (can also use VT52 / CV1052 / 6G6 / 6V6 / 6K6 / 6Y6 / 6F6 / 6L6 / 6550 / KT66 / KT77 / KT88 / KT99 / KT100 / EL34 / 5881 / 6CA7...etc direct plug-n-play ), which give very dynamics sound with extremely good control . Rectifier tube use 274B (can also use 5U4G / 5AR4 / 5R4 / 53KU / GZ37 / STR-104 / STR-1001 / STR-1002 ...etc directly plug-n-play) matched with our special designed QUAD-core balanced output transformers and oil coupling capacitors , the mid and high is so silky smooth and liquid , and the bass is very punchy with elastic tenderness control . All tube section built with point-to-point and component-to-component hand wiring technique to ensure max. transparency and natural tonal quality. Also equipped with filter choke for further musicality and smoothness enhancement, selectible with a selector for different music preferences.

This is the starting model of our Reference series of pre-amplifiers, which have no compromise in build quaility. Solid aluminum top panel with 12mm front and back aluminum anodized plexiglass , elegant wood side panels added the touch of real musical instrument resonance. Super high headroom power transformer which is good enough to power up a push-pull amplifier, give exceptional reliability and stability as well as easiness of the sound with hanging in the air density. We strongly believe this pre-amp can easily surpass the sonic performance of competitors US$20,000-$50,000 offerings.

For customer who need even more heavy duty chassis design, we can offer super thick all solid-aluminum chassis , all solid-oak chassis, or wood+AL chassis for your choices , additional cost may apply.

This pre-amp can use more than 10 x 20 x 10 = 2000+ different tube combinations to fine-tune the tonal quality as well as dynamics and richness, .

Non-feedback pure tube ORGANIC design with very open , smooth and sweet tonal quality. Those big output power tubes give exceptional richness and texture as well as super high density sound to regenerate the real live performance soundstage, which is never be reachable for products built with those smaller tubes like 6DJ8 / 12AX7 ...etc, no matter how much price they asked for.

MDE (micro-dynamics extraction ) circuit included for super details high resolution and high density rich, sweet and smooth sound quality.

You might wonder why there seems to be no others can do pre-amps with those big size tubes with ORGANIC design in order to achieve our superb level of sonic performance ? The answer is very simple , it is extremely difficult to design and build such a unit without putting any solid-state regulators and still come out with a professional grade performance. Most of the manufacturers are just aim at making a nice finished chassis , copy or modify from an old school circuit design, then throw in few small tubes and a few piece of expensive parts on circuit boards , pay for some nice write-up review and advertisement, and expect a quick and big return from their investment , they are not dare or not capable to do such an extremely difficult design with those hired engineers / technicians, who even might not know what music is all about.

The RV (remote volume) version comes with our most advanced 100 micro-step laser trimmed resistor network volume pot, which has superb transparent sonic performance and super wide bandwidth from DC to 1Mhz (-3db), and a full function remote control (volume up/dn, Balance, mute, un-mute) .

Optional chassis :

Solid-oak in regular lacqor finish add $250 / gloss lacqor add $300

Solid-oak in high gloss piano finish add $500

Black piano high gloss finish add $500



No. of inputs 1 set of XLR input + 2 sets of AUX inputs
No. of outputs 1 set of RCA output, 1 set of XLR output
Max. input level 3Vrms
Freq response 2Hz - 50Khz (-3db)
S/N > 90 db
Gain x3- x8 depend on tube types
manufacturing hand-wired point to point for tube section
Phase in-phase, non-inverted.
Input impedance 100Kohm

Default tubes :

Input stage (4 tubes) EL32 or CV1052 or VT52 (alt : 6G6 / 6V6 / 6K6/ 6L6 / 6F6 / 6Y6..etc)

Output stage (2 tubes) 6550 (alt: VT52 / CV1052 / 6G6 / 6V6 / 6K6 / 6Y6 / 6F6 / 6L6 / 6550 / KT66 / KT77 / KT88 / KT99 / KT100 / KT120 / KT150 / KT170 / EL34 / 5881 / 6CA7...etc)

Rectifier 274B (alt:5U4G / 5AR4 / 5R4 / 53KU / GZ37 / STR-104 / STR-1001 / STR-1002...etc) with proper adapter can also use 80 / 83 / 8020 / 705A....etc


1 year free parts and labor warranty under normal operation condition, extend warranty possible with additional cost



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