Latest DACs

[JimC]

14 bit TDA1540 based one and a 16 bit TDA1541A based one.

'Crompton Audio' doesn't exist but you got to have something to fill the space where the fake Goldman badge would have gone !!!!

[Puffin]

What are we looking at? Are these clones of Goldmund Dacs if so which ones. Is there a link to these "clones"?

[JimC]

No, my own designs.
Just fake Chinese Goldman cases which are available on ebay.

[walpurgis]

Looking excellent, very nicely put together :).

[The Black Adder]

These look interesting... Any links?

[JimC]

Links?

I make them myself, as a hobby !!! One-offs. I could be persuaded to make more !!!!
Just thought folk would like to see !!!

[struth]

Links?

I make them myself, as a hobby !!! One-offs. I could be persuaded to make more !!!!
Just thought folk would like to see !!!

well done james. looks good, and hopefully sound good too. keep it up. if you make more you could show them off in a gallery page

[Gregje]

Cute!

[eldarvanyar]

Love the two builds. How do they sound in comparison to each other? Which do you prefer?
Do you have the size of the box and how much do they cost?
Thanks

Sent from my CPH2145 using Tapatalk

[Lawrence001]

Links?

I make them myself, as a hobby !!! One-offs. I could be persuaded to make more !!!!
Just thought folk would like to see !!!True but often self builders will take a circuit from a website like DIY audio, sometimes with a few tweaks of their own.

Did you design the circuits from the bottom up?

[JimC]

Love the two builds. How do they sound in comparison to each other? Which do you prefer?
Do you have the size of the box and how much do they cost?
Thanks

Sent from my CPH2145 using Tapatalk

They sound quite alike, yet different. (Sorry!)
They both have slightly different output stages, the 1540 not requiring quite so much gain, interestingly. So an ECC82 is used whereas with the 1541 I used a grounded cathode ECC83 (2 less in the component count, I'm a very big fan of the simplest circuits).

Dimensions are approximately 430 wide, 330 deep and 120 tall (mm).

As for cost, when I have totted it all up and putting some (adequate) labour on, one I built recently for someone with Silver everywhere, Resistors, solder, wiring (not A/N o/p caps though!!) I ended up charging over
£2500

[JimC]

These are all my own designs.
Nothing too radical. Looked at the datasheets for all the ICs and implemented according
to the Manufacturer. Let's face it, they know what they're doing.
1541 in differential mode.
Both (1540 & 1541) feed a transformer for I/V conversion and summing of the o/p
and inverted o/p.
The tx's then feed a very simple Valve o/p stage.

WM8805 SPDIF Receiver.

I am very, very pleased with the outcome of both builds.