# Discrete R2R DAC hat **URL:** \ **Category:** DACs\ **Created:** [September 19, 2020, 3:25pm UTC](https://community.volumio.com/t/discrete-r2r-dac-hat/41340 "2020-09-19T15:25:18Z")\ **Posts on this page:** 10\ **Page:** 1
**Author:** ![bigbulb](https://community.volumio.com/user_avatar/community.volumio.com/bigbulb/32/24564_2.png) [@bigbulb](https://community.volumio.com/u/bigbulb)\ **Post date:** [September 19, 2020, 3:25pm UTC](https://community.volumio.com/t/discrete-r2r-dac-hat/41340/1 "2020-09-19T15:25:18Z")
Just finished my discrete R2R DAC hat. … [![](https://community.volumio.com/uploads/default/original/2X/0/00b60179e7e5f804574670d941510ee2fdaa5fee.jpeg "Building Discrete R-2R DAC Hat - Part-1") ](https://www.youtube.com/watch?v=7pHpN-J0S8M) [![](https://community.volumio.com/uploads/default/original/2X/e/e7d4bed7cf1bc077417f3ae6d0b4bf8430e870d9.jpeg "Building Discrete R2R DAC Hat - Part 2") ](https://www.youtube.com/watch?v=HsWyG7MWpEo) ---
**Author:** ![andrewnorth](https://community.volumio.com/user_avatar/community.volumio.com/andrewnorth/32/6873_2.png) [@andrewnorth](https://community.volumio.com/u/andrewnorth)\ **Post date:** [September 19, 2020, 4:30pm UTC](https://community.volumio.com/t/discrete-r2r-dac-hat/41340/2 "2020-09-19T16:30:30Z")
If you’d use 1970’s sized components, I’d stand a chance Nice work ---
**Author:** ![bigbulb](https://community.volumio.com/user_avatar/community.volumio.com/bigbulb/32/24564_2.png) [@bigbulb](https://community.volumio.com/u/bigbulb)\ **Post date:** [September 20, 2020, 2:04am UTC](https://community.volumio.com/t/discrete-r2r-dac-hat/41340/3 "2020-09-20T02:04:20Z")
![DAC4](https://community.volumio.com/uploads/default/original/2X/4/436c9f4c50dd3827a5cc44b19117f884c3f19d60.jpeg) My Prototypes are almost all thru hole parts. ---
**Author:** ![judydudi](https://community.volumio.com/user_avatar/community.volumio.com/judydudi/32/338_2.png) [@judydudi](https://community.volumio.com/u/judydudi)\ **Post date:** [February 14, 2024, 7:59pm UTC](https://community.volumio.com/t/discrete-r2r-dac-hat/41340/4 "2024-02-14T19:59:57Z")
Hi bigbulb, unfortunately i had overlooked your message. I really would like to test your R2R DAC HAT at my soundcheck event. [VOLUMIO soundcheck invitation for Hamburg, Germany](https://community.volumio.com/t/volumio-soundcheck-invitation-for-hamburg-germany/5427) Do you still have any for sale? kind regards ---
**Author:** ![bigbulb](https://community.volumio.com/user_avatar/community.volumio.com/bigbulb/32/24564_2.png) [@bigbulb](https://community.volumio.com/u/bigbulb)\ **Post date:** [February 15, 2024, 2:10am UTC](https://community.volumio.com/t/discrete-r2r-dac-hat/41340/5 "2024-02-15T02:10:58Z")
Hi, please check PM , thank you. ---
**Author:** ![judydudi](https://community.volumio.com/user_avatar/community.volumio.com/judydudi/32/338_2.png) [@judydudi](https://community.volumio.com/u/judydudi)\ **Post date:** [April 22, 2024, 5:17pm UTC](https://community.volumio.com/t/discrete-r2r-dac-hat/41340/6 "2024-04-22T17:17:39Z")
I am very enthusiastic about your discrete R2R DAC HAT board. It is a pleasure to listen to it. Please let us know here, if there are any improvements or new versions done to your board. Thanks! ---
**Author:** ![bigbulb](https://community.volumio.com/user_avatar/community.volumio.com/bigbulb/32/24564_2.png) [@bigbulb](https://community.volumio.com/u/bigbulb)\ **Post date:** [April 24, 2024, 7:40am UTC](https://community.volumio.com/t/discrete-r2r-dac-hat/41340/7 "2024-04-24T07:40:34Z")
Hi Judydudi, Thank you for getting back to me. I’m currently building a small batch of new design , version V2.4, with individual switch on each bit , and it has much lower internal resistance . For sound quality, it has more decent bass and more detail . The PCB is a little bit larger than previous one. Here’s the photo of the DAC. Sorry for the low quality camera at low light. ![24bit1](https://community.volumio.com/uploads/default/original/3X/8/6/8682a2fcecc25142f2b57262f9122c13708ae844.jpeg) ---
**Author:** ![judydudi](https://community.volumio.com/user_avatar/community.volumio.com/judydudi/32/338_2.png) [@judydudi](https://community.volumio.com/u/judydudi)\ **Post date:** [April 28, 2024, 8:32am UTC](https://community.volumio.com/t/discrete-r2r-dac-hat/41340/8 "2024-04-28T08:32:29Z")
That sounds good. It’s great that you’re continuing to work on it. And with even more detail, it will be fun to examine the songs closely. Looking forward to receiving the DAC in the next few weeks! ---
**Author:** ![sjaaklaan](https://community.volumio.com/user_avatar/community.volumio.com/sjaaklaan/32/4229_2.png) [@sjaaklaan](https://community.volumio.com/u/sjaaklaan)\ **Post date:** [October 17, 2024, 8:12pm UTC](https://community.volumio.com/t/discrete-r2r-dac-hat/41340/9 "2024-10-17T20:12:22Z")
This looks very promising. Is this a product that you will sell on your site [https://audiophilediyer.com](https://audiophilediyer.com)? ---
**Author:** ![Romanescugxg](https://community.volumio.com/user_avatar/community.volumio.com/romanescugxg/32/27566_2.png) [@Romanescugxg](https://community.volumio.com/u/Romanescugxg)\ **Post date:** [May 8, 2025, 12:30pm UTC](https://community.volumio.com/t/discrete-r2r-dac-hat/41340/10 "2025-05-08T12:30:16Z")
Hi guys, My toy has arrived - it is a discrete R-2R DAC Hat for Raspberry Pi ( Version V2.42 ) Up to 24bit 384K, non over sampling . Support Pi 2,3,4, and 5 Distortion 0.004% ~0.005% ,…,… And it is unbelievable good. What op-amps mods and other things, this is truly awesome: more detailed, more cold aka real, bass is very controlled and the soundstage is huge. But be careful if you play low resolution music it will sound bad because it plays exactly what you fed it. I play it via a modest sistem: volumio -raspberry 4 - Nvarcher super capacitor power filter - Nvarcher grounded grid tube pre moded - 2 Rotels 850 mono or Nelson Pass ACA paralel mono RCA - Chario Constellation Cygnus speakers. So in my case R2R NOS is truly the one type of DAC that my ears love - analog and pure, no timber. PS: DAC’s that I had till now: SMSL 1955+ / SA9027+WM8805+PCM1796+OP275+JRC5532DD but I’ve played also with OPA1656 AUDIOLAB 8200CDQ - ESS Sabre 9018K2M Hifiberry Digi+ & Digi+ Pro Linn Unidisk SC China ES 9028 Thank you Audiophile Diyer , wow ! ![IMG_20250507_184130](https://community.volumio.com/uploads/default/original/3X/a/0/a0040cee08bc0fec3c0bbcb90ae2627e4a97d282.jpeg) ![IMG_20250507_184140](https://community.volumio.com/uploads/default/original/3X/8/9/894ab2ff306c814efdc84c562f421e8c3e61b81d.jpeg) ![IMG_20250507_184201](https://community.volumio.com/uploads/default/original/3X/9/4/9411813b9264be985085fc3c122253e84d912719.jpeg)