AVA Vision Hybrid DAC

0 Members and 1 Guest are viewing this topic. Read 1391 times.

Tone Depth

  • Full Member
  • Posts: 608
  • Music Lover
    • SRLPE Wheel Works
AVA Vision Hybrid DAC
« on: 26 Apr 2022, 02:57 am »
My 2011 Vision Hybrid DAC needs a new home! Excellent for streaming and playing audio files up to 192 kHZ-24bit, which I have been doing for 11 years. Two SPDIF optical inputs and two SPDIF coaxial inputs, 1 set RCA outputs. USB input can be accommodated by obtaining a Dongle (for example a Douk Audio USB XMOS XU208 Digital Interface TOSLINK Coaxial DOP SPDIF Adapter DSD64 PCM 192 kHz-24 bit). Frank evaluated it with his oscilloscope, and says at very low frequencies, there is slight noise on the right channel. For sale: $600.00 USD, buyer pays shipping. Following are two from the original flyer:






The Vision Hybrid DAC used a version of our Ultra II tube hybrid circuits, with a 6N1P (later a 6CG7) triode followed by a power mos-fet inside the overall feedback loop.  This was an excellent and musical unit.

This was replaced by the current production Fet Valve Hybrid DAC which uses a 6CG7 Broskie totem-pole tube section followed by a mos-fet follower, with no overall loop feedback.  We find the Fet Valve design to be slightly superior overall for the DAC requirements and have used this for the past few years.

I would not spend the money to replace one with the other, the differences are minor.

Frank Van Alstine
« Last Edit: 11 Oct 2022, 11:30 pm by Tone Depth »

jjss49

  • Full Member
  • Posts: 776
Re: AVA Vision Hybrid DAC
« Reply #1 on: 26 Apr 2022, 03:48 pm »
curious to know what the price of this dac was when new...

mcgsxr

Re: AVA Vision Hybrid DAC
« Reply #2 on: 26 Apr 2022, 04:57 pm »

Tone Depth

  • Full Member
  • Posts: 608
  • Music Lover
    • SRLPE Wheel Works
Re: AVA Vision Hybrid DAC
« Reply #3 on: 7 May 2022, 05:28 am »
Bump: price reduction

ceylon

  • Jr. Member
  • Posts: 65
Re: AVA Vision Hybrid DAC
« Reply #4 on: 25 May 2022, 10:02 pm »
so with that usb -v coax adapter i can plug it into my macbook and run it?

Tone Depth

  • Full Member
  • Posts: 608
  • Music Lover
    • SRLPE Wheel Works
Re: AVA Vision Hybrid DAC
« Reply #5 on: 26 May 2022, 04:54 am »
I read two Amazon posts of using the dongle to connect USB on a Mac to spdif on the dac:

https://www.amazon.com/Douk-Audio-Converter-Interface-PCM192Khz/product-reviews/B085XPRSGM?reviewerType=all_reviews

I don't have direct experience using a Mac with it.

whell

Re: AVA Vision Hybrid DAC
« Reply #6 on: 16 Jun 2022, 12:20 am »
I use the Douk converter.  I works very well.

ceylon

  • Jr. Member
  • Posts: 65
Re: AVA Vision Hybrid DAC
« Reply #7 on: 28 Jun 2022, 12:03 pm »
what tubes u got in there?

ceylon

  • Jr. Member
  • Posts: 65
Re: AVA Vision Hybrid DAC
« Reply #8 on: 6 Jul 2022, 11:32 am »
well?

Tone Depth

  • Full Member
  • Posts: 608
  • Music Lover
    • SRLPE Wheel Works
Re: AVA Vision Hybrid DAC
« Reply #9 on: 9 Jul 2022, 08:32 pm »
The DAC has the original 6CG7 tubes, never had a reason to try anything else. I don't check this thread very often, and don't seem to get notifications of other posts to it, sorry for the response time lag.

ceylon

  • Jr. Member
  • Posts: 65
Re: AVA Vision Hybrid DAC
« Reply #10 on: 10 Jul 2022, 09:27 pm »
copy that. thx

Tone Depth

  • Full Member
  • Posts: 608
  • Music Lover
    • SRLPE Wheel Works
Re: Sold: AVA Vision Hybrid DAC
« Reply #11 on: 1 Sep 2022, 09:12 pm »
bump

Tone Depth

  • Full Member
  • Posts: 608
  • Music Lover
    • SRLPE Wheel Works
Re: AVA Vision Hybrid DAC
« Reply #12 on: 8 Oct 2022, 09:24 pm »
New price in original post.
« Last Edit: 11 Oct 2022, 11:31 pm by Tone Depth »