Tda1387....... the older the fiddle the sweeter the tune

[jkeny]

oh btw put a potato 74374 to reclock on it too, much bigger improvement here than on soekris !

not surprising - isn't the reclocking on the Soekris not as direct
How much of sonic gap now between Soekris & 1387?

[nige2000]

oh btw put a potato 74374 to reclock on it too, much bigger improvement here than on soekris !

not surprising - isn't the reclocking on the Soekris not as direct

yes this is far more direct, and obviously benefits much more,
the soekris reclocks again via fpga im more astounded how reclocking pre soekris still has a prefound effect even down to the choice of flip flop

How much of sonic gap now between Soekris & 1387?

dunno i have them in different systems atm, i wouldnt like to guess
however the tda1387 is extremely susceptible to ps and the quality of the i2s
with the new xmos usb to i2s chip, the potato ff and been powered by lifepo4 i think its starting to reveal what is possible
the tda1387 sounds much more like the soekris than it would a sigma delta
im trying to shoe horn one into a box for Saturday

i wont have the output transformers unfortunately, will have to do them in the new yr,
unless i think there a flop of course

[wushuliu]

Fun stuff. FYI Thanks to a post by jean paul at diyaudio I bought two of the Taiwan 1997 TDA1541 chips being sold by ECdesigns a few weeks back. Don't know if any are left. Not all that cheap, but at least they are guaranteed unused and original. Won't be doing anything with them for a long time though.

https://www.ecdesigns.nl/parts.html

[abraxalito]

however the tda1387 is extremely susceptible to ps and the quality of the i2s

In passive I/V the TDA1387 is always going to be ps sensitive, due to the 'pull-up' current source internally. That's why I ended up using hundreds of thousands of uF on my earlier DAC designs. Active I/V solves the ps sensitivity to my satisfaction, discrete being top of the pile for active I/Vs.

[nige2000]

however the tda1387 is extremely susceptible to ps and the quality of the i2s

In passive I/V the TDA1387 is always going to be ps sensitive, due to the 'pull-up' current source internally. That's why I ended up using hundreds of thousands of uF on my earlier DAC designs. Active I/V solves the ps sensitivity to my satisfaction, discrete being top of the pile for active I/Vs.

Ah right
I will try the active I/v me thinks