Pre-Amps - Reference Series

Model no: Reference-1-Ultra C$9,380 Untitled Document [US$ 7504]

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

with quad-balanced NOS UTC transformer output + direct tube output + oil coupling capacitors + selectible choke filtering + WE cloth wiring + NOS Carbon resistors + solid-oak chassis + 100 microstep laser trim network remote volume

 

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 super enhanced verison of the Reference-1-RV pre-amplifiers, which have no compromise in build quaility. Solid oak chassis 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$50,000-$100,000 offerings.

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.

 

Specifications
No. of inputs 1 set of XLR input + 2 sets of AUX inputs
No. of outputs 1 set of direct RCA+XLR output, 1 set of UTC OPT RCA+XLR output
Max. input level 3Vrms
Freq response

2Hz - 50Khz (-3db) (direct output) , 5Hz ~ 30Khz (OPT output)

S/N > 90 db
Gain x3- x8 depend on tube types
manufacturing hand-wired point to point for the 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

Warranty

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

 

 


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