Search found 4085 matches

by Ray P
Wed Aug 05, 2020 3:18 pm
Forum: Everyones Projects
Topic: Valve DAC
Replies: 55
Views: 5198

Re: Valve DAC

Your impressions sound most tempting Ray. But I'm PCM and I probably need a simpler job. It probably looks more complex than it is Simon. You could feed it PCM by bolting something like an AK4137 or CT7302PL on the front for a hardware based solution. Conceptually, that's what the designers origina...
by Ray P
Wed Aug 05, 2020 1:37 pm
Forum: Everyones Projects
Topic: Valve DAC
Replies: 55
Views: 5198

Re: Valve DAC

I don't know if there is any interest in building this DAC amongst you chaps but, for information, I have initiated a group buy for a batch of PCBs over on DIY Audio and invite you to sign-up if its of interest. https://www.diyaudio.com/forums/digital-line-level/308860-valve-dac-linear-audio-volume-...
by Ray P
Tue Aug 04, 2020 10:45 pm
Forum: Everyones Projects
Topic: Valve DAC
Replies: 55
Views: 5198

Re: Valve DAC

I've been re-exploring my music collection again this evening, thoroughly enjoying the experience and hearing pieces in a new light. Now, I know that in the scale of things I haven't listened to that many DACs, but what I can say is that of those I've listened to this is the best, bettering my previ...
by Ray P
Tue Aug 04, 2020 12:44 pm
Forum: Assorted Stuff
Topic: I got a job today
Replies: 30
Views: 547

Re: I got a job today

Maybe do your flies up before leaving the house?

Seriously, be positive and true to yourself - good luck.
by Ray P
Mon Aug 03, 2020 7:33 pm
Forum: Everyones Projects
Topic: Symmetric Reichert 300B push-pull
Replies: 69
Views: 1132

Re: Symmetric Reichert 300B push-pull

Dave, I have four K&K Compact Cascode Current Source Board kits that I will no longer need - I've been planning to post them on the Buying and Selling topic for £5 each (plus shipping & PP fees) but haven't got around to it.

Ray
by Ray P
Sun Aug 02, 2020 7:28 pm
Forum: Assorted Stuff
Topic: Nothing In Particular
Replies: 11734
Views: 1071933

Re: Nothing In Particular

s'funny how some clearly very intelligent people can be complete idiots at the same time...

https://www.bbc.co.uk/news/world-africa-53627888
by Ray P
Sun Aug 02, 2020 7:18 pm
Forum: Everyones Projects
Topic: Valve DAC
Replies: 55
Views: 5198

Re: Valve DAC

Hi Wolfgang and thanks. The only difficult to obtain part for this project is the PCB - I'll come back to that. IMO the best way of getting the SDM (DSD) needed for this DAC is, as you would expect me to say, HQ Player - this is based on my own very positive experience with it and others who've trie...
by Ray P
Sun Aug 02, 2020 4:31 pm
Forum: Assorted Stuff
Topic: Corona Virus Lock Down 'Rant' Thread.
Replies: 598
Views: 27365

Re: Corona Virus Lock Down 'Rant' Thread.

Second Wave is clearly expected - I popped over to Tesco earlier and one of the things we needed was toilet rolls, they didn't have that many on the shelf and there was a selfish git just behind me who shoved in front of an old lady and grabbed the last three 24roll packs in his trolley! I wish him ...
by Ray P
Sun Aug 02, 2020 2:28 pm
Forum: Everyones Projects
Topic: Valve DAC
Replies: 55
Views: 5198

Re: Valve DAC

Thanks chaps. Just gave myself a few minutes of panic and despondency! :ashamed: I've just moved the DAC from the workbench to next to my work desk so it's easier to explore the HQP settings and to use it with my Noir HPA and BayerDynamic DT880 headphones - no sound! After a bit of head scratching I...
by Ray P
Sun Aug 02, 2020 10:54 am
Forum: Everyones Projects
Topic: Valve DAC
Replies: 55
Views: 5198

Re: Valve DAC

This morning I've been playing music at DSD256 for an extended period with no issues, in fact it just keeps getting better and better. The DAC has a silent background as far as my ears can tell. The music out of it has a fantastic richness but without any stodginess, every voice/instrument is clearl...
by Ray P
Sun Aug 02, 2020 10:42 am
Forum: Everyones Projects
Topic: New SE With Triode Mode KT120/150
Replies: 237
Views: 6145

Re: New SE With Triode Mode KT120/150

ed wrote:
Sun Aug 02, 2020 10:25 am
I'm not sure we haven't discussed this a while back...
I think that was LDR based attenuation.

You might look at the Academy pre-assembled unit - looks to be a good price and without the smd hassle.

https://www.academyaudio.com/product-pa ... trol-board
by Ray P
Sun Aug 02, 2020 6:40 am
Forum: Everyones Projects
Topic: New SE With Triode Mode KT120/150
Replies: 237
Views: 6145

Re: New SE With Triode Mode KT120/150

It dont matter steve as long as it sounds good.. No, it wasn't my intention to suggest otherwise or to imply criticism - it was nothing more than an 'icing on the cake' observation and as long as listening to music with the system makes Steve smile it's mission accomplished. ...Those Khozmo stepped...
by Ray P
Sat Aug 01, 2020 7:39 pm
Forum: Everyones Projects
Topic: Valve DAC
Replies: 55
Views: 5198

Re: Valve DAC

Thanks Steve. :thumbup: I can't help thinking about how ridiculous it is using all those transformers and generating all that heat just to create a line level output; I think you made similar comments about your 13E1 build. However, I can now boast of being the owner of one of the world's few DACs t...
by Ray P
Sat Aug 01, 2020 6:51 pm
Forum: Everyones Projects
Topic: Valve DAC
Replies: 55
Views: 5198

Re: Valve DAC

So here it is...

Image

I didn't mention earlier that my HQ player configuration was set for DSD512; using the lower 64 and 128 rates, I've done some experimenting with the HQP filters with noticable affect - its sounding really very good. I'm chuffed.
by Ray P
Sat Aug 01, 2020 4:32 pm
Forum: Everyones Projects
Topic: Valve DAC
Replies: 55
Views: 5198

I'm in Business!

It's working nicely now and sounding very good indeed. The problem was to do with timing of the flipflops, not a problem component. First step to resolving it was to step down to DSD64 (previously DSD128) and I enjoyed an hour of listening via my headphone amp. Fortunately the designer included the ...