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Model no: DA-64XT-Super
   
  

  

  

  

  

  

  

  

23bit 64x over-sampling digital-analog converter with balanced input and enhanced tube output

This is one of our state-of-the-art designed D/A converters having a resolution of 23 bits and 2,822 Khz (44.1Khz x 64= 2.822Mhz) re-sampling frequency that can completely eliminate digital noise from original CD data. Between each original databit, 63 more databits are calculated and inserted to complete the music signal. This serves to bring back an LP smoothness and warmth in the playback. 8 ASP’s (audio signal processors) are installed in this design to recalculate harmonic response up to 70Khz to assure correct reproduction of music (equivalent or better than the best quality MC cartridges).

This unit has been equipped with a true balanced tube output stage to ensure the best dynamics, superb sonic performance is achieved, as well as low output driving impedance.

This super version is an upgrade from the DA-64XT, which also boasts a super enhanced tube buffer stage as well as an XLR balanced input, (which has about a 20%-30% overall improvement in sonic performance compared with the standard DA-64XT version).

A super low output impedance (50ohm) module is also offered as an option to further boost the driving power with an additional cost of $500, one additional pair of XLR’s + RCA’s in a super low output socket will be added.

Max.digital input frequency : 48Khz 24bit in PCM format

The 5U4G tube rectifier can further upgrade by our super rectifier STR-104 or higher models , direct plug and play without any mod required.

With this super rectifier adaptor, you can use 300B, 2A3 , 45 , 50 , 80, 83, 1616 , 3B28 or 866A as rectifier tubes option.
Specifications
No. of inputs 1 set of coaxial digital input and XLR balanced digitial input
No. of outputs 1 set of RCA outputs + 1 set of balanced outputs
Freq response 10Hz - 70Khz (-3db)
dynamic range better than 110 db
Max. output volt 2V rms
Phase non-inverted
manufacturing hand-wired point to point for tube section
Tubes used 2 x 6G6G + 2 x 6L6G + 5U4G rectifier

(for 6G6G/6L6G, there is alternate tubes can be use as well as KT66/KT88/6550/EL34/6V6/6Y6/6F6/KT99/KT100)

(Note: The price quoted is a special deal for newly order unit only, modification of existing unit will be around $300 higher than the following prices due to more works for disassemble of the original circuits)

Level 1 upgrade : (+ C$200)

Special designed "Super-Drive" circuit, output impedance lowered to 200ohm (can drive any input from 600ohm up to infinity) with better bass control and punch , better definition and improved in overall tonal quality. By adding this upgrade, it sounds like the output with 10 times tubes being used. With this level of upgrade, just add $50 and you can have a headphone output with enough power and current to drive your headphone directly.
1 year parts and labor warranty, tubes 90 days under normal operation conditions
standard chassis : Gold/ Black/Metallic MDF , Aluminum chassis

(optional chassis : Mirror steel, black piano , solid-oak )