Integrated gainclone w/ NOS DAC and SB3

neil_kaye · 18th August 2006, 03:21 AM

Hi,

Well this started out a building a mono gainclone absed in Peter's boards. From there i purchased his NOS. Now i am thinking of housing the gainclone board, two transformers, NOS DAC and Squeezebox 3 (as the transport) in a single enclosure.
It is probably totally crazy but i would love the experts here to weigh in on the possibility of executing this project.
I have attached an image which is of a quick sketch mock up i did tonight. The thick bars separating the components would be aluminum bar stock to help contain EMF as well as, im the cas of the gain clone boards, act as heat sinks.
The transformers are 160 VA mounted back to back (vertically to save room).
Any suggestions ideas or cries of alarm would be greatly appreciated.
Thanks

Nuuk · 18th August 2006, 08:28 AM

It's a great idea to minimise the amount of interconnects and sockets but I would make one concession and that would be to keep the PSUs in one box and the rest of the system in another!

dsavitsk · 18th August 2006, 08:37 AM

The output impedence of the DAC is pretty high so you will need to choose a potentiometer and set the input impedence of the amp accordingly.

Nuuk · 18th August 2006, 10:29 AM

Quote:

The output impedence of the DAC is pretty high so you will need to choose a potentiometer and set the input impedence of the amp accordingly.

Or may be add a buffer.

neil_kaye · 18th August 2006, 02:13 PM

Nuuk / dsavitsk

Thanks for the feedback. What do you mean by input / output inpedence> I would definilty like to avoid using a pot so the questions arises about adding a buffer.... major newbie question here but waht is a buffer?
I was also thinking about the antenae for the squeezebox. What is the best way of dealing with that. Right now it appears that the metal "c" on the SB3 is the antenae although i have yet to open up the case... tamper proof screws and call.
I i still want to house the PSU in the case, and i assume you mean the amp psu's, althoug the squeezebox does have a small wallwar, what woud be the best way to do this?
And finally. I would naturally be using one AC input, what is the most effective way of splitting the AC power lines to each component once inside the case?
Cheers

Nuuk · 18th August 2006, 05:17 PM

Very little time to answer so may I refer you to the Gainclone section of my website.

Also some research on this forum will enlighten you further!

18th August 2006, 08:28 AM	#2
Nuuk diyAudio Member Join Date: Feb 2003 Location: Somerset, SW England	It's a great idea to minimise the amount of interconnects and sockets but I would make one concession and that would be to keep the PSUs in one box and the rest of the system in another! __________________ The truth need not be veiled, for it veils itself from the eyes of the ignorant.

18th August 2006, 05:17 PM	#6
Nuuk diyAudio Member Join Date: Feb 2003 Location: Somerset, SW England	Very little time to answer so may I refer you to the Gainclone section of my website. Also some research on this forum will enlighten you further! __________________ The truth need not be veiled, for it veils itself from the eyes of the ignorant.

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18th August 2006, 08:37 AM	#3
dsavitsk diyAudio Member Join Date: Jan 2005 Location: Chicago	The output impedence of the DAC is pretty high so you will need to choose a potentiometer and set the input impedence of the amp accordingly.

18th August 2006, 02:13 PM	#5
neil_kaye diyAudio Member Join Date: Dec 2005 Location: San Francisco	Nuuk / dsavitsk Thanks for the feedback. What do you mean by input / output inpedence> I would definilty like to avoid using a pot so the questions arises about adding a buffer.... major newbie question here but waht is a buffer? I was also thinking about the antenae for the squeezebox. What is the best way of dealing with that. Right now it appears that the metal "c" on the SB3 is the antenae although i have yet to open up the case... tamper proof screws and call. I i still want to house the PSU in the case, and i assume you mean the amp psu's, althoug the squeezebox does have a small wallwar, what woud be the best way to do this? And finally. I would naturally be using one AC input, what is the most effective way of splitting the AC power lines to each component once inside the case? Cheers