Power supply upgrade for the Duet?

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emac

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Power supply upgrade for the Duet?
« on: 27 Jul 2008, 06:36 pm »
Can anyone recommend a relatively cheap power supply upgrade for the Squeezebox Duet?  I've been looking for a couple of months for something, and I haven't been able to find anything yet.  I know that Bolder, CI Audio, and Welborne have PSU's available, but I'd prefer not to spend $200-300 on a new power supply.  I'm also okay if it's a DIY project, as long as it's not overly complicated. 

Thanks ahead of time for the help.

tanchiro58

Re: Power supply upgrade for the Duet?
« Reply #1 on: 27 Jul 2008, 06:53 pm »
Can anyone recommend a relatively cheap power supply upgrade for the Squeezebox Duet?  I've been looking for a couple of months for something, and I haven't been able to find anything yet.  I know that Bolder, CI Audio, and Welborne have PSU's available, but I'd prefer not to spend $200-300 on a new power supply.  I'm also okay if it's a DIY project, as long as it's not overly complicated. 

Thanks ahead of time for the help.

Emac,

The best way to get a cheap DIY PS for your Duet is to buy a high quality switching 9V PS (double the ampere of the stock one) then build a Felix as described in the Lab AC by Occam, GBB, Gordy, JoshK, etc... I built it for my Duet and the combination sounds much better than stock PS. The cost is less than $100. :thumb:

Good luck,
Tan

emac

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Re: Power supply upgrade for the Duet?
« Reply #2 on: 27 Jul 2008, 06:55 pm »
Emac,

The best way to get a cheap DIY PS for your Duet is to buy a high quality switching 9V PS (double the ampere of the stock one) then build a Felix as described in the Lab AC by Occam, GBB, Gordy, JoshK, etc... I built it for my Duet and the combination sounds much better than stock PS. The cost is less than $100. :thumb:

Good luck,
Tan

That's an idea.  What switching 9V PS would you recommend?

tanchiro58

Re: Power supply upgrade for the Duet?
« Reply #3 on: 28 Jul 2008, 01:03 am »
Emac,

The best way to get a cheap DIY PS for your Duet is to buy a high quality switching 9V PS (double the ampere of the stock one) then build a Felix as described in the Lab AC by Occam, GBB, Gordy, JoshK, etc... I built it for my Duet and the combination sounds much better than stock PS. The cost is less than $100. :thumb:

Good luck,
Tan

That's an idea.  What switching 9V PS would you recommend?

This one I got from ebay:




BradJudy

Re: Power supply upgrade for the Duet?
« Reply #4 on: 28 Jul 2008, 01:49 am »
A fairly simple and inexpensive DIY option would be to combine a wall-art with a regulator unit like this TREAD - http://tangentsoft.net/elec/tread/

He sells kits for the TREAD for $17, but his kit has parts selected for 24V usage.  You can ask him if he'd to a kit for 9V, or you could pick the parts yourself. 

I built one of his STEPS power supplies for my headphone amp - http://tangentsoft.net/elec/teps/ but this is a more expensive project ($100 in parts IIRC).  If you're interested in that level of DIY, you can also look at AMB's sigma 11 power supply - http://www.amb.org/audio/sigma11/  which I think is also $100+ in parts including the transformer.  I was thinking of building a sigma 11 for my Duet, but moving has pushed back all DIY plans for a long time. 


emac

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Re: Power supply upgrade for the Duet?
« Reply #5 on: 28 Jul 2008, 04:35 am »
The Felix almost seems like it is too easy, though I like easy.  Probably worth a shot.

jhm731

Re: Power supply upgrade for the Duet?
« Reply #6 on: 31 Jul 2008, 11:38 pm »
Here's a much better linear PSU solution for your DUET:

Acopian -B9G50(9VDC .5 amp) Cost- $100.

www.acopian.com/

These power supplies have screw terminals.

You'll need an AC power cable and a DC cable and plug. Make sure you check the stock wall wart for the correct polarity on the DC plug.

PS- The Duet receiver doesn't need more than .5amps
PPS- This PSU doesn't need a Felix. 8)


emac

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Re: Power supply upgrade for the Duet?
« Reply #7 on: 1 Aug 2008, 12:02 am »
Here's a much better linear PSU solution for your DUET:

Acopian -B9G50(9VDC .5 amp) Cost- $100.

www.acopian.com/

These power supplies have screw terminals.

You'll need an AC power cable and a DC cable and plug. Make sure you check the stock wall wart for the correct polarity on the DC plug.

PS- The Duet receiver doesn't need more than .5amps
PPS- This PSU doesn't need a Felix. 8)



On a whim, I had emailed Acopian about what they would recommend as a power supply for the Duet. 

They had recommended: Model 9EB150 (output rated 9Vdc @ 1.5A), which runs for $135.  Either one would probably work very well. 

mr_bill

Re: Power supply upgrade for the Duet?
« Reply #8 on: 2 Aug 2008, 12:55 am »
emac or jhm731,
I have an Acopian power supply.
I just received it and thanks for the recommendation jhm731

I have my DC plug wired up to the output.

The input screw terminals for AC show:
L
N
and another symbol that's a circle with some lines in it.

I'll buy a power cord and strip the ends but I have no idea what L N and the other symbol are and how to hook up the power cord to the screw terminals?  I'm sure this is easy if you know what the symbols stand for.

I think the circle type symbol is the ground and I would assume the green wire screws to that.

Are the L and N for the black and white wires and does it matter which is hooked to which?  (polarity doesn't matter on the AC input?)

Can either of you help or someone else that is electrically minded as I don't have a clue!

Thanks.

emac

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  • Posts: 371
Re: Power supply upgrade for the Duet?
« Reply #9 on: 2 Aug 2008, 01:27 am »
emac or jhm731,
I have an Acopian power supply.
I just received it and thanks for the recommendation jhm731

I have my DC plug wired up to the output.

The input screw terminals for AC show:
L
N
and another symbol that's a circle with some lines in it.

I'll buy a power cord and strip the ends but I have no idea what L N and the other symbol are and how to hook up the power cord to the screw terminals?  I'm sure this is easy if you know what the symbols stand for.

I think the circle type symbol is the ground and I would assume the green wire screws to that.

Are the L and N for the black and white wires and does it matter which is hooked to which?  (polarity doesn't matter on the AC input?)

Can either of you help or someone else that is electrically minded as I don't have a clue!

Thanks.

Somebody should double check this but I believe:

L = hot = black
N = neutral = white
Circle = ground = green