Reference-X version 2 Line Preamplifier

Reference X Version 2 tube line preamplifier (Since: July 2024)

The Reference X Version 2 (Since: July 2024) is Audio Experience Prepare Flagship Grade line preamp. It 's circuit is new design . it uses one ECC82 tube at input stage to driver NOS Siemens EC8010 gold pin tube with one Hashimoto line output transformer construct Class A for each channel.

The Reference X 's application of a highly efficient solid-state voltage regulator with EZ81 Tube for current regulator and Hashimoto choke in the HVB+ power supply . Also it use the external power supply get highest S/N, the power supply is dual mono design.

The New Reference X Version 2 improved the circuit of amplifier, the sound got full upgrade about 30% than Reference X
The T.H.D of Reference X Version 2 is 0.015% 1kHz at 2V , The before Reference X is 0.035% 1kHz at 2V

Features

New design circuit
NOS Siemens EC8010 gold pin tube and ECC82 tube for Gain stage.
Hashimoto line output transformer (made in Japan).
Class A .
Gain and Volume uses TKD conductive plastic potentiometer
XLR input with Hashimoto (made in Japan) special grade high impedance 1:1 input transformer.
Vishay Date , Caddock , AMRA resistors.
XLR output and RCA output
External power supply ( dual mono design )
Double Hasimoto Choke (made in Japan) at HVB+ power supply
V-Cap CuTF coupling cap
Gain control selector : 11 dB, 13.8 dB, 17.8 dB, 19 dB.
Gold-plated OFC copper wire inside interconnect cable.

Specifications

Controls
Main unit : Volume , Input gain, Input Selector , Output XLR/RCA Selector , Main gain selector .

Power supply : Power On/Of

Output : Two pair XLR Main Output , Two pair RCA Main Output .

Input : Two pair XLR input , Two pair RCA input.

Output Impedance : 60 ohms
Recommended load: 600 ohm or greater.

Frequency Response: 20Hz ~ 100kHz ( 20Hz 0dB , 100kHz -2.5dB) at 2V output.

T.H.D : 0.015% 1kHz at 2V

Input Impedance: 50K ohm XLR , 50K ohm RCA.

Gain: 11 dB, 13.8 dB, 17.8 dB, 19 dB ( XLR and RCA are same gain ).

S/N: >115dB

Channel Balance: <0.1dB(20Hz ~ 20KHz /max output)

Channel Separation: >98dB(2Hz ~ 20KHz)

Phase Mode : Normal

Max Output : 28V

Line-Stage Tubes : 2 pcs ECC82 , 2 pcs EC8010 , 2pcs EZ81.

Dimension: Main 400mm x 310mm x 163mm (W x D x H) , power supply 400mm x 310mm x 80mm (W x D x H)

Weight: Main and power supply total 13.8kg

Power Source: 110V-120V / 220V-240V, 50/60Hz

Not remote version actual price: HK$39,000.

With remote ( remote volume controls only ) version actual price: HK$41,000.

The Reference X have black and silver two color version.

YS-Audio
Room1308, 13/F,BLK C,.
Kai Tak FTY BLDG.
99-101 King Fuk ST,.
San Po Kong,   KLN,.
Hong Kong
Tel:(852)93440168
E-mail : info@ys-audio.com
WhatsApp: 93440168
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