audio-talk

I only use Cd players. Heavily modified Naim CD3.5, Cambridge Audio CD5 and Sony CDPS1.

We have itunes on the pc but i very rarely bother with it. I am a keep it simple kind of guy. No external dac's, digital cables or anything.

Very sad, although i have known for a while. I am going to miss him .

Thanks for your input Wolfgang. I am not adverse to putting in a buffer and will eventually try one i think.

As far as the article goes, i dont know enough to say if its right or wrong. Just thought it may prompt some discussion from you more learned members.

Cheers, Stu.

Anyone fancy casting an eye over this. Shows one channel of dac, dc blocking, volume control and input stage of power amp. I have not included the capacitance, resistance and inductance of cables etc cos I don't know what they are. Anything I can improve on (except reducing coupling cap value) ?????...

Just read https://www.soundstageultra.com/index.php/features-menu/general-interest-interviews-menu/311-what-s-wrong-with-digital-volume-controls Puts me off digital volume control but then I know naff all about it. Preamps are to be avoided if possible - when I removed my Avondale preamp board it wa...

TDA1305 Dac chip definitely has 2.5V DC on its output. I just checked again.

So I cant get rid of the coupling cap Can still lower it to 1uf and not have audible bass roll off ?

Oh, sorry Ed. Have not checked email recently. Yes i would still like it.

Money will be sent tomorrow.

Many thanks, stu

I thought so. Thanks for clearing that up Nick. I will keep the dac as is. I already pimped up the decoupling and vref cap with oscons years ago. Gave each power supply pin (3 of) its own psu and pfm flea reg on the most important one and a sprinkling of capacitance multipliers. Next thing i will do...

Well I could do that I suppose. I have found the i2s lines (Bitclock, wordclock and data) between SAA7376 decoder chip and TDA1305 dac chip.

Its a lot of buggering about though. What do i need ? Some sort of SPDIF chip ?

Stu

Hi Wolfgang, I am pretty sure it has 2.5V DC on the dac output but then I might have measured wrong with my DMM. I agree that no cap is best if possible to do so. I will measure again. NVA amps are like no other solid state amps I have come across. Richard Dunn the designer states that he intentiona...

Thanks Phil,

Oooo, reading that I am not so sure about adding more of them in the chain. I don't know. Suck it and see I suppose. Not cheap to try though. I do have a pair of the 3.3uf spare that I could rob for a bit just to try.

Stu

How about a couple of these babies ….

https://www.ebay.co.uk/itm/1-5uf-Paper- ... rk:23:pf:0

I use a 3.3uf size of this cap as a high pass filter for my tweeters. Does a good job in that role

1uf paper in oil any good for coupling caps ?

Hi Wolfgang, Thanks for your time with this. I only went with 10uf as that was what i had in there already -the naim stage had 2pairs of 10uf tantalum coupling caps - one pair straight after dac output and another pair after the bessel filter and before the output relay. I just kept the first pair o...

Nick wrote: ↑Sun Oct 21, 2018 2:29 pm What 10uf cap are you using? They don;t all sound the same, maybe consider a film bipass?

Hi Nick,

10uf, 50v coupling caps are wima film ( mks 2xl)

Stu