AudioSector-chip amp kits, dacs, chassis - Page 15

Peter Daniel · 23rd March 2005, 06:28 PM

Quote:

Originally posted by Hanzwillem
In the 6moon review it stated that your DAC reversed abolute polarity. Is this still the case?

Yes, this DAC wil reverse polarity.

jleaman · 23rd March 2005, 07:05 PM

Quote:

Originally posted by pinkmouse
Nice rack Peter!

Looks like the DAC will have to go on hold for the moment, I have just put myself down for the miniA GB, and pocket money is still scarce. Still, I'm sure there will be new improved version 2 boards in a month or so, I know how much you like playing with designs...

Please email me.

motherone · 23rd March 2005, 11:22 PM

Peter,

Are there any major audible diffrences between the two DAC's that you've posted? I really like the layout of the second one even more so than the first.

Mike

Peter Daniel · 23rd March 2005, 11:41 PM

I still didn't receive those boards yet, but I expect the package any day now.

The circuit and the parts are exactly the same for both boards (with exception of one less OsCon for the green one).

jleaman · 24th March 2005, 12:06 AM

Quote:

Originally posted by Peter Daniel
I still didn't receive those boards yet, but I expect the package any day now.

The circuit and the parts are exactly the same for both boards (with exception of one less OsCon for the green one).

Can i buy one or get one ?

Peter Daniel · 24th March 2005, 12:09 AM

You can surely buy one, I'll let you know when they become available.

KT · 24th March 2005, 12:38 AM

Very nice boards, Peter. I am definitely going to buy a kit when you come out with them.

Peter, you mentioned there was no benefit of using a battery over AC in your DAC. If that's the case, it would be nice to just power it from the mains and leave it at that. It's most likely the course I'll take.

If using a battery, though, what's the maximum voltage you recommend for power?

Right now I'm using a 12V SLA (ouput is more like 13.8V or so) with my Scott Nixon DacKit and it's working with no problem. I think that there's some regulation happening on the DacKit board, but will this voltage be a problem with your kit? If not, I may just use the same kind of battery to start with since I have another one.

Thanks,
KT

Peter Daniel · 24th March 2005, 01:12 AM

I have also built a DAC version powered by 12V SLA batteries and on board regulators have no problem with that, so batteries can be easily used.

The second board has actually built in battery chargers, so it is more suitable for battery operation.

The comparison between AC power and battery power will greatly depend on mains quality. In both setups I did the teststing, I was using power conditioners, and mains quality was rather good.

Batteries provide for fuller midrange and somewhat softer (and maybe more natural) presentation, but they seem to be lacking drama

AC power, OTOH, gives for more high end extention, so called air, more sparkle and livelines. Personal taste may have to do something here as well.

Peter Daniel · 24th March 2005, 01:55 PM

The green boards have arrived today, and here's how the other side looks.

jleaman · 24th March 2005, 04:59 PM

I like how you can use both surface mounted and Through hole part's..

Can i email you. ?

23rd March 2005, 11:41 PM	#144
Peter Daniel diyAudio Member Join Date: Jul 2002 Location: Toronto, Canada	I still didn't receive those boards yet, but I expect the package any day now. The circuit and the parts are exactly the same for both boards (with exception of one less OsCon for the green one). __________________ 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

24th March 2005, 12:09 AM	#146
Peter Daniel diyAudio Member Join Date: Jul 2002 Location: Toronto, Canada	You can surely buy one, I'll let you know when they become available. __________________ 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

24th March 2005, 01:12 AM	#148
Peter Daniel diyAudio Member Join Date: Jul 2002 Location: Toronto, Canada	I have also built a DAC version powered by 12V SLA batteries and on board regulators have no problem with that, so batteries can be easily used. The second board has actually built in battery chargers, so it is more suitable for battery operation. The comparison between AC power and battery power will greatly depend on mains quality. In both setups I did the teststing, I was using power conditioners, and mains quality was rather good. Batteries provide for fuller midrange and somewhat softer (and maybe more natural) presentation, but they seem to be lacking drama AC power, OTOH, gives for more high end extention, so called air, more sparkle and livelines. Personal taste may have to do something here as well. __________________ 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

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23rd March 2005, 11:22 PM	#143
motherone diyAudio Member Join Date: Apr 2003 Location: Seattle	Peter, Are there any major audible diffrences between the two DAC's that you've posted? I really like the layout of the second one even more so than the first. Mike

24th March 2005, 12:38 AM	#147
KT diyAudio Member Join Date: Oct 2003 Location: USA	Very nice boards, Peter. I am definitely going to buy a kit when you come out with them. Peter, you mentioned there was no benefit of using a battery over AC in your DAC. If that's the case, it would be nice to just power it from the mains and leave it at that. It's most likely the course I'll take. If using a battery, though, what's the maximum voltage you recommend for power? Right now I'm using a 12V SLA (ouput is more like 13.8V or so) with my Scott Nixon DacKit and it's working with no problem. I think that there's some regulation happening on the DacKit board, but will this voltage be a problem with your kit? If not, I may just use the same kind of battery to start with since I have another one. Thanks, KT

24th March 2005, 04:59 PM	#150
jleaman Banned Join Date: Apr 2002	I like how you can use both surface mounted and Through hole part's.. Can i email you. ?

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