AudioSector-chip amp kits, dacs, chassis - Page 52

Peter Daniel · 10th December 2005, 05:33 AM

Indeed 3 more channels. With Neutrik Speakon connectors it could actually work out

ozone_stink · 11th December 2005, 02:53 AM

Hi Peter, sorry to stray way off topic, but I was hoping that you could quickly explain what the deal is with clocking and external DACs.

I have the impression that if I've taken the time to clock my transport and then I add an external DAC, I need to clock the DAC too. Or make efforts to keep the two in synch. -Is this necessary or just 'nice to have'?

Or am I mistaken?

Thanks.

Peter Daniel · 11th December 2005, 04:45 PM

It's not really neccessary. If you add external DAC, it does not need to be synchronized with a transport as the clock is recovered in the receiver. It may not be optimum solution, but there are so many other things affecting the sound of a DAC, this would be probably the last thing I would be looking into.

What is interesting, I have Marantz CD-94 with a same DAC implemented and connected directly using I2S.

I have another setup, where CD-Pro transport was used with external DAC and SPDIF connection, and I prefer separates (without clocks synchronized).

Elso Kwak · 11th December 2005, 04:48 PM

Quote:

Originally posted by Peter Daniel
It's not really neccessary. If you add external DAC, it does not need to be synchronized with a transport as the clock is recovered in the receiver. It may not be optimum solution, but there are so many other things affecting the sound of a DAC, this would be probably the last thing I would be looking into.

What is interesting, I have Marantz CD-94 with a same DAC implemented and connected directly using I2S.

I have another setup, where CD-Pro transport was used with external DAC and SPDIF connection, and I prefer separates (without clocks synchronized).

Any explanation Peter?

Peter Daniel · 11th December 2005, 04:50 PM

Two ears?

Elso Kwak · 11th December 2005, 04:52 PM

Quote:

Originally posted by Peter Daniel
Two ears?

Hahahahahahha ONLY two???

What I2S do yo mean, mines or internally??

Peter Daniel · 11th December 2005, 05:01 PM

I didn't have reclocking on I2S lines, it was direct connection between decoder chip and TDA1543 DAC inside a player. Theoretically it should be better, but it wasn't.

I tried reclocking quite a few times, and never really liked it. I have ML360S DAC with extensive processing at the input stage, and I don't really like it either. Two much digital processing takes away some important part of a musical presentation, one might say it kills the spirit

Well, I'm not sure myself why using CS8412 receiver does not sound bad, but personally I don't really feel tempted to look into alternative ways. Maybe an analogy in comparing to analog preamplification would apply here? Passive stage theoretically should sound better (and it probably does with tube equipment) but whenever I try it with SS, I alsways prefer an active preamp stage.

Regarding clocks, I recently tried a clock from your competition in my Technics Z-1000 transport, and I actually removed it and went back to a crystall oscilator that was there originally, it just didn't sound natural, the way I am used to.

Elso Kwak · 11th December 2005, 05:08 PM

My competition? You speak in riddles Peter.

Peter Daniel · 11th December 2005, 05:10 PM

I'm learning from you. You can always ask me through e-mail.

Elso Kwak · 11th December 2005, 05:12 PM

Quote:

Originally posted by Peter Daniel
I'm learning from you.

You would be the first Peter, LOL

10th December 2005, 05:33 AM	#511
Peter Daniel diyAudio Member Join Date: Jul 2002 Location: Toronto, Canada	Indeed 3 more channels. With Neutrik Speakon connectors it could actually work out __________________ www.audiosector.com “Do something really well. See how much time it takes. It might be a product, a work of art, who knows? Then give it away cheaply, just because you feel that it should not cost so much, even if it took a lot of time and expensive materials to make it.” - JC

11th December 2005, 04:45 PM	#513
Peter Daniel diyAudio Member Join Date: Jul 2002 Location: Toronto, Canada	It's not really neccessary. If you add external DAC, it does not need to be synchronized with a transport as the clock is recovered in the receiver. It may not be optimum solution, but there are so many other things affecting the sound of a DAC, this would be probably the last thing I would be looking into. What is interesting, I have Marantz CD-94 with a same DAC implemented and connected directly using I2S. I have another setup, where CD-Pro transport was used with external DAC and SPDIF connection, and I prefer separates (without clocks synchronized). __________________ www.audiosector.com “Do something really well. See how much time it takes. It might be a product, a work of art, who knows? Then give it away cheaply, just because you feel that it should not cost so much, even if it took a lot of time and expensive materials to make it.” - JC

11th December 2005, 04:50 PM	#515
Peter Daniel diyAudio Member Join Date: Jul 2002 Location: Toronto, Canada	Two ears? __________________ www.audiosector.com “Do something really well. See how much time it takes. It might be a product, a work of art, who knows? Then give it away cheaply, just because you feel that it should not cost so much, even if it took a lot of time and expensive materials to make it.” - JC

11th December 2005, 05:01 PM	#517
Peter Daniel diyAudio Member Join Date: Jul 2002 Location: Toronto, Canada	I didn't have reclocking on I2S lines, it was direct connection between decoder chip and TDA1543 DAC inside a player. Theoretically it should be better, but it wasn't. I tried reclocking quite a few times, and never really liked it. I have ML360S DAC with extensive processing at the input stage, and I don't really like it either. Two much digital processing takes away some important part of a musical presentation, one might say it kills the spirit Well, I'm not sure myself why using CS8412 receiver does not sound bad, but personally I don't really feel tempted to look into alternative ways. Maybe an analogy in comparing to analog preamplification would apply here? Passive stage theoretically should sound better (and it probably does with tube equipment) but whenever I try it with SS, I alsways prefer an active preamp stage. Regarding clocks, I recently tried a clock from your competition in my Technics Z-1000 transport, and I actually removed it and went back to a crystall oscilator that was there originally, it just didn't sound natural, the way I am used to. __________________ www.audiosector.com “Do something really well. See how much time it takes. It might be a product, a work of art, who knows? Then give it away cheaply, just because you feel that it should not cost so much, even if it took a lot of time and expensive materials to make it.” - JC

11th December 2005, 05:10 PM	#519
Peter Daniel diyAudio Member Join Date: Jul 2002 Location: Toronto, Canada	I'm learning from you. You can always ask me through e-mail. __________________ www.audiosector.com “Do something really well. See how much time it takes. It might be a product, a work of art, who knows? Then give it away cheaply, just because you feel that it should not cost so much, even if it took a lot of time and expensive materials to make it.” - JC

11th December 2005, 02:53 AM	#512
ozone_stink diyAudio Member Join Date: Jan 2005 Location: Montreal	Hi Peter, sorry to stray way off topic, but I was hoping that you could quickly explain what the deal is with clocking and external DACs. I have the impression that if I've taken the time to clock my transport and then I add an external DAC, I need to clock the DAC too. Or make efforts to keep the two in synch. -Is this necessary or just 'nice to have'? Or am I mistaken? Thanks.

11th December 2005, 05:08 PM	#518
Elso Kwak Banned Join Date: Dec 2001 Location: Zamboanga, City of Flowers, Mindanao	My competition? You speak in riddles Peter.

Thread Tools	Search this Thread
Show Printable Version Email this Page	Search this Thread: Advanced Search

New To Site?	Need Help?
Register to Participate Search Privacy Statement Contact Us	Frequently Asked Questions Did you forget your password? Mark Forums Read