TUBADOUR III Non Oversampling Tube DAC$1500 - Discontinued!!!
  • It is here!!! The latest Tubadour III is a Non - oversampling DAC based on Analog Devices best sounding and most musical chip. It is a all format DAC with tube IV conversion stage. It employs AES, Coax. Optical and USB inputs. I2S input is optional. 16-32 bit up to 384kHz. It plays natively PCM. DSD can be played by using the option "convert on the fly" on most of the music players. For example Audirvana, Amarra, Foobar, Roon, Euphony and many others can do this "on the fly". Conversion doesn't compromise the quality in any way. So yes you can enjoy DSD files also. Base model comes with unbalanced outputs. Balanced outputs are optional. After long journey for many years, trying ESS Sabre dac chips, Delta sigma dacs over and non-oversampling dacs, single bit and multibit dacs we are back to the best sounding chip - Analog devises multibit R2R DAC. This is the most analog, musical and no artifically sounding DAC.  Base price is $1500. 

    TUBADOUR III Non Oversampling Tube DAC$1500 - Discontinued!!!

    • Sample rates:  

      S/PDIF, AES         44.1 - 192kHz

      Optical/Tosslink   44.1 - 96kHz

      USB, I2S, PCM   44.1 - 384kHz

      DSD - coverterted by player to PCM "on the fly"

      Bit depth:

      Up to 24 bit over S/PDIF, AES, Tosslink

      Up to 32 bit over USB and I2S


      optional balanced output

      optional I2S input


      13 x 12 x 3 inches



      This is a non-oversampling, all format, vacuum tube DAC.

      It is based on Analog devices AD1865N-K flagship DAC chip. This is the best and most analog and musical sounding DAC chip ever made.

      Tubes used in the DAC are 5977 subminiature tubes. They are mounted on a special tube adaptor, which is plugged into a regular 9 pin tube socket. You can just unplug the adaptor and use regular 9pin tubes, which can be any of the following tubes: 6N1P, 6DJ8, ECC88, 6922 and 6H23P. After experimenting with many tubes we found that 5977 is the best sounding tube for this application. Second best sounding tube is 6N1P. After all it’s a matter of taste. All the 9pin tubes mentioned above have almost twice the gain of 5977, therefore you will have twice higher output level from the DAC - around 2V. Expected tube life for 5977 subminiature tubes is  >5000 hrs.

      DAC has a build in slow ramping up high voltage (HT) supply to prevent  shortening the tubes life. Due to this the DAC will perform with full scale level and sound quality after approximately 10 min after it’s turned ON. Do not leave the DAC ON for long period of time (24 hrs. or so) if you are not listening to music. This will only shorten the tubes life.

      Tube equipment is the opposite of solid state one which sounds better if it’s warmed up for long period of time. 15min or so for DAC warm up is quite enough. DAC parts has a break in time of between 50 -70hrs. The most noticeable improvement in sound will be in the first 20-25 hrs.

      DAC does not have MQA capability.

      DSD files can be played if the player used - convert  DSD to PCM.

      Most players like Foobar, Audirvana, Amarra etc can do this on the fly.

      DAC has two knobs on the front panel.

      Left one is POWER ON/OFF

      Right one is input selector.

      DAC has COAX(SPDIF) TOSSLINK(OPTICAL) AES, USB and I2S(optional) inputs, selectable from the front right switch.

      DAC has Blue LEDs on the front panel showing the selected source.

      The most left LED is a white color and it indicates when the DAC has locked into the source, applicable only for Coax, Optical and AES inputs.

      DAC outputs are Unbalanced RCA. Balanced outputs are optional.