Reference One Phono Preamplifier.
Reference grade Phono preamplifier.
The main unit with power supply of 2 unit design.
The Reference-One use T-LCR type RIAA EQ design, the T-LCR Type is best method for revive RIAA EQ, also is highest cost design.
It uses 12AX7 ,5670(WE396A) with JENSEN line output transformer for input stage, special made T-LCR type RIAA EQ , 5670(WE396A) with JENSEN line output transformer output stage( with XLR and RCA output).
The Reference One 's application of a highly efficient solid-state voltage regulator with 6X4 Tube for current regulator and Tango choke in the HVB+ power supply . Also it use the external power supply get highest S/N.
The MC step up transformer use Hasimoto ( made in Japan )
- GE 5670 with Jensen line transformer.
- Class A .
- Vishay/Dale RN55, A/B , RMA Resistors
- Hasimoto MC step-up transformer.
- XLR output and RCA output
- External power supply
- Two Tango Choke at HVB+ power supply
The Reference One phono preamplifier has just for MM version.
It has 4 pair MM input and with out the MC step-up transformer.
Power Supply : Power On/Of .
Main Unit : Phase Normal / Inverse , Input MC/MM , MC Gain High/Low , MC Input 1 or 2.
Output : 1 pair Main XLR , 1pair Main RCA.
Input : MC1 input , MC2 input , MM input ( all RCA ).
Output Impedance :
600 ohms ( XLR and RCA same ) , 600 ohms minimum load.
Frequency Response: +/- 0. 2dB 20Hz to 20KHz , RIAA equalized
MC low gain is 12ohm ( for 7 ~ 40ohm internal Impedance of MC cartridge )
MC high gain is 3ohm ( for 2 ~ 7ohm internal Impedance of MC cartridge )
MM is 47K / 100P ( the capacitance impedance can change by module )
Gain: MM gain 45dB, MC low gain 71dB, MC high gain 77dB
Hum and Noise: MM is 95 dB below 10mV input, MC is 98 dB below 1mv input.
Phase Mode : Normal / Inverse.
|Phono Overload: MM 800mV. |
Distortion: Less than .05% at 0.5V RMS 1kHz output.
|Max Output : 20V RMS output at 0.5% THD at 1kHz |
Tube Compliment : 12AX7x2, 5670(WE396A)x4, 6X4 x1.
Main unit , 455mm x 350mm x 120mm (W x D x H)
Power Supply ,400mm x 310mm x 80mm (W x D x H)
Total Weight: 18kg
Power Source: 110-127/220 - 240V,50/60Hz
The preamplifier Include : Box , Power Cable , Manual , All Tubes.
2 year warranty ( not include tubes and ship cost )
The Payment Methods and Shipping
I can ship the preamplifier to any local.
Please, e-mail to me ask about the cost of shipping .
Factory Direct Sell from Hong Kong .
Made in Hong Kong. This is promotional price
For more information, please click to YS-Audio Online
The Pacific Valve & Electric Company
1921 Wilson Street
Suite A # 111
Batavia, IL 60510
Web site : http://www.pacificvalve.us