Digital to Analog Converters

Model no: USB-DSD-DAC1 
C$1,180 Untitled Document [US$ 957] (Ver.A)

C$1,480 [US$ 1201] (Ver.B)

C$1,680 [US$ 1363] (Ver.C)

32 bit 384Khz DSD & PCM compatible USB DAC with RCA+XLR tube output

A) Balanced Tx coupled output version C$ 1,180 (solid-state only version)

B) 6L6G Tube output version C$ 1,480

default : 6L6G x 2 + 6X5GT

(option:KT66/KT77/KT88/KT99/KT100/KT120/KT150/6550/EL34/5881/6CA7..and all compatible tubes)

C) NOS Mullard EL32 (CV1052) upgraded version C$ 1,680

default : Mullard EL32 (CV1052) x 2 + 6X5GT

(option:KT66/KT77/KT88/KT99/KT100/KT120/KT150/6550/EL34/5881/6CA7...and all compatible tubes)

This is a 8x over-sampling class DAC, convert any USB input format to 32bit 384Khz resolution , combine the pure tube rectifer and big output tube section, easily convert the digital sound into analoge sound with high-end vinyl playback quality. This might be the only and the best sounding 32bit USB DAC which can work with the wonderful sound Mullard EL32 and those other big power tubes like KT66 or 6550, it can effortlessly surpass the sonic performance of any small (6922, 12AX7...etc) / medium (6SL7, 6SN7...etc) size tube DAC and any solid-state DAC in the industry.

USB input capability let you easily hook up your computer (MAC / PC compatible) and transform them into a music server, which can play all ripped/downloaded regular CD or high resolution files

Super enhanced power transformer for "Hanging-in-the-air" 3D imaging, and good enough to power up the power hungry KT120 or KT150 output tubes.

SPDIF coaxial digital output to hook up other DAC which has no USB input capabilities.

Headphone output with level control to use as super high grade tube headphone amplifier. The level control can also vary the output level of the DAC , so directly hook up to power amplifiers without the need of a pre-amplifier make possible.

Advance microprocessor controlled tube soft-warm-up design, greatly extend lifespan of those tubes and prevent start up surge noise. Combine with our newest 2015 LNBT (Lo-Noise-Big-Tube) design, you can enjoy digital music with super high-end vinyl playback sound quality in unbelieve low noise background.

Hand-wired for tube section in order to achieve super high performance with such a bang-for-buck price tag, we strongly believe this unit can easily take down any other name brands DAC even over $10,000 range.

Super low resonance material chassis design for most pure and organic TUBE sound regeneration.

Input data rate :

16 bit , 20bit , 24 bit and 32 bit ( 44.1K/48K/88.2K/96K/176K/192K/352K/384K) in DSD/PCM format

Dynamic range 120db

S/N > 85db

max. output level 2Vrms (RCA) 4Vrms (XLR)

Input : USB

Output : RCA + XLR balanced , headphone

Upgrade option :

STR-104, STR-1001 , STR-1002 Super rectifier upgrade

Add input selector to switch between AUX input and USB input +C$180

SPDIF input upgrade with 24bit 192Khz max. data rate +C$480

SPDIF + AESEBU input upgrade with 24bit 192Khz max. data rate +C$880

DSD64 & DSD256 input data format upgrade +$150

Customer feedback:

from Robert

Received the unit 2 days before the expected date, nice surprise.
The wraping was excellent, you're a perfectionist taking care of his products and his clients.
It shows that we are not paying for a fancy commercial casing, switch, toroid transformer,etc; it is one of the reasons why the DAC is low priced.
As for the sound: very impressive, lots of musical informations on velvet
I was doubtfull but it surpasses my previous excellent and well reviewed DAC. (model: PS Audio PerfectWave MkII)
I found in PCM what I was looking in DSD: musicality, presence, analogue like, a lot of musical informations, no fatigue, no glare.  The digital harshness is gone, and we are far from dealing with hiding low quality softness.
I am completly revisiting my music collection, what a pleasure for an audiophile.  Many recordings, previously dull and not interesting, become alive. Few of the previous bad recordings are still bad recordings when you are able to dig in the musical informations. 
As you know I have a top notch and very revealing audio system (VTL MB450, Vandersteen Model 5, etc) and the improvement is clearly revealing. 
As for DSD, it is working fine but I don't have enough recordings to make up my mind. I am sure it's gone be an interesting experience.




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