AudioSector-chip amp kits, dacs, chassis - Page 54

opt-e · 14th December 2005, 09:43 PM

Quote:

The four ground wires consist of dual PG+ and PG- connections (in parallel, to increase current capacity).

Got it, thanks

I didn't realize your 3875 board has a pair of PG+/PG-.

Would it be a good idea to do the same (use dual PG+ and PG- connections) with the 4870 kit?

Peter Daniel · 14th December 2005, 09:55 PM

I would suggest so, especially when it's more powerful chip.

sangram · 16th December 2005, 07:33 AM

Hi Peter, anyone who can help. Sorry if this is answered before.

How do we connect the PS if the transformer is the center-tapped type? Should we omit 4 of the diodes or disconnect (cut) the CT and connect as two series windings on the rectifier board?

Thanks

Sangram

Peter Daniel · 16th December 2005, 07:41 AM

Check page 15 of this manual: http://www.audiosector.com/nigc_kit-users_guide.pdf

sangram · 16th December 2005, 07:48 AM

Can't access your site Peter

Peter Daniel · 16th December 2005, 07:59 AM

I usually convert centertapped transformer into dual secondaries by disconnecting 2 wires. It may not always be possible, in that case one bridged is used (only):

sangram · 16th December 2005, 08:02 AM

Many thanks Peter!

Edit: Any chance of that pdf magically appearing in my e-mail?

karma1968 · 16th December 2005, 05:46 PM

dam malware virus money sent. i sent you the tracking number
by the time you read this u will allready have it.

thanks peter

Peter Daniel · 16th December 2005, 07:42 PM

I received it today. Will sent the package on Monday.
Thanks.

rjkdivin · 16th December 2005, 09:42 PM

Peter,

I finally got my AllInOne powered up and it is very nice indeed. I set up an A-B listening test between it and the on-board DAC in my Denon DVM-2815 using an A-B switch and then powering the signals through an M3 headamp to my Senn HD600s. Using Vangelis as my program, I've listened to about an hours worth of music so far.

When first powerd on, the ALLInOne was a little narrow and tight, but within about 15 minutes, it opened up nicely to a full rich sound. I also had to reverse the CD analog inputs to my A-B switch so the switching between inverted and non-inverted wouldn't throw off my comparisons from ear to ear.

The AllInOne seems a little fuller in the bass end to me, but I don't hear much difference in the highs (could be my 60 yr old ears though). Soundstage with this source was about the same between the Denon and the ALLInOne, but there were differences in the emphasis on different instruments. It might be more dramatic with a less digitally orchestrated program.

Overall, a very full rich sound, with nothing missing! I really like it. Now a case for it! And time to begin the second one.

Robert

A few pics of the setup:

14th December 2005, 09:55 PM	#532
Peter Daniel diyAudio Member Join Date: Jul 2002 Location: Toronto, Canada	I would suggest so, especially when it's more powerful chip. __________________ 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

16th December 2005, 07:41 AM	#534
Peter Daniel diyAudio Member Join Date: Jul 2002 Location: Toronto, Canada	Check page 15 of this manual: http://www.audiosector.com/nigc_kit-users_guide.pdf __________________ 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

16th December 2005, 05:46 PM	#538
karma1968 diyAudio Member Join Date: May 2004 Location: london ontario	dam malware virus money sent. i sent you the tracking number by the time you read this u will allready have it. thanks peter __________________ audiokarma.net

16th December 2005, 07:42 PM	#539
Peter Daniel diyAudio Member Join Date: Jul 2002 Location: Toronto, Canada	I received it today. Will sent the package on Monday. Thanks. __________________ 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

16th December 2005, 09:42 PM	#540
rjkdivin diyAudio Member Join Date: Oct 2005	All-In-One Premium DAC Peter, I finally got my AllInOne powered up and it is very nice indeed. I set up an A-B listening test between it and the on-board DAC in my Denon DVM-2815 using an A-B switch and then powering the signals through an M3 headamp to my Senn HD600s. Using Vangelis as my program, I've listened to about an hours worth of music so far. When first powerd on, the ALLInOne was a little narrow and tight, but within about 15 minutes, it opened up nicely to a full rich sound. I also had to reverse the CD analog inputs to my A-B switch so the switching between inverted and non-inverted wouldn't throw off my comparisons from ear to ear. The AllInOne seems a little fuller in the bass end to me, but I don't hear much difference in the highs (could be my 60 yr old ears though). Soundstage with this source was about the same between the Denon and the ALLInOne, but there were differences in the emphasis on different instruments. It might be more dramatic with a less digitally orchestrated program. Overall, a very full rich sound, with nothing missing! I really like it. Now a case for it! And time to begin the second one. Robert A few pics of the setup:

16th December 2005, 07:33 AM	#533
sangram diyAudio Member Join Date: Sep 2002 Location: India	Hi Peter, anyone who can help. Sorry if this is answered before. How do we connect the PS if the transformer is the center-tapped type? Should we omit 4 of the diodes or disconnect (cut) the CT and connect as two series windings on the rectifier board? Thanks Sangram

16th December 2005, 07:48 AM	#535
sangram diyAudio Member Join Date: Sep 2002 Location: India	Can't access your site Peter

16th December 2005, 08:02 AM	#537
sangram diyAudio Member Join Date: Sep 2002 Location: India	Many thanks Peter! Edit: Any chance of that pdf magically appearing in my e-mail?

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