PSU for ucd180st?

markusA · 29th September 2012, 07:14 PM

I have a couple of UCD180ST modules that I want to use.
Please help me decide on what to use for psu's.
(Building two monoblocks.)

I could either bodge togeather a couple of very simple linear supplies or I could buy a set of SMPS200QR from connexelectronic.com.
The price is roughly the same when you factor in everything.
The smps is probably even cheaper than the linear supplies counting all the little bits and pieces?

The cases will be the same in either case.
Weight isn't an issue. If anything the weight from a transformer would help the amp to stay put...

I like simple and economic. If money wasn't an issue I would go ahead and buy Hypex psu's.

So, what do think is my best option?

GuidoR · 29th September 2012, 07:57 PM

Have a look to this Connex SMPS300RE H i F i D U I N O from an esteemed member of this forum

Guido

markusA · 30th September 2012, 08:45 AM

Thanks for the suggestion.
The case is only 40mm high so size might be an issue with that specific supply.
I will however e-mail Connex and ask if they can use caps with a lower profile.

giannettino · 1st October 2012, 02:57 PM

I think the DPS 500 series can be perfect...

Link

markusA · 1st October 2012, 03:26 PM

Looks nice but it doesn't say anything about the physical dimensions and it's way too expensive at the moment.

giannettino · 1st October 2012, 03:31 PM

Ok..understand..
I have a couple of them driving 4 "old" Nuforce Ref 9 V2 pcb each..and they work very good

Ciao!

Tekko · 1st October 2012, 03:45 PM

A 400VA transformer would be adequate.

markusA · 1st October 2012, 03:48 PM

I like power as much as the next guy but I could easily get away with 160VA transformers.
A 400VA transformer would never fit in the case anywho.
Building two monoblocks...

AP2 · 03:51 PM

sorry, maybe solve very well DPS-400. it is 100x105mm and assemble in 1U. very clean smps for audio,think is in discount. maybe can help you.
I know it is already used for UDC180/400 without problem.

Koifarm · 3rd October 2012, 07:18 PM

Just use linearsupply with 2x10000uf caps. This sounds better then a SMPS with the ST modules. Do not try to save a view bucks.

29th September 2012, 07:14 PM	#1
markusA diyAudio Member Join Date: Dec 2009 Blog Entries: 7	PSU for ucd180st? I have a couple of UCD180ST modules that I want to use. Please help me decide on what to use for psu's. (Building two monoblocks.) I could either bodge togeather a couple of very simple linear supplies or I could buy a set of SMPS200QR from connexelectronic.com. The price is roughly the same when you factor in everything. The smps is probably even cheaper than the linear supplies counting all the little bits and pieces? The cases will be the same in either case. Weight isn't an issue. If anything the weight from a transformer would help the amp to stay put... I like simple and economic. If money wasn't an issue I would go ahead and buy Hypex psu's. So, what do think is my best option?

1st October 2012, 03:45 PM	#7
Tekko diyAudio Member Join Date: Jan 2005	A 400VA transformer would be adequate. __________________ The point of life is to build atleast one audio amplifier before you die.

1st October 2012, 03:49 PM	#9
AP2 diyAudio Member Join Date: Dec 2009 Location: Italy	sorry, maybe solve very well DPS-400. it is 100x105mm and assemble in 1U. very clean smps for audio,think is in discount. maybe can help you. I know it is already used for UDC180/400 without problem. Last edited by AP2; 1st October 2012 at 03:51 PM.

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29th September 2012, 07:57 PM	#2
GuidoR diyAudio Member Join Date: Jun 2006 Location: Bergamo	Have a look to this Connex SMPS300RE H i F i D U I N O from an esteemed member of this forum Guido

30th September 2012, 08:45 AM	#3
markusA diyAudio Member Join Date: Dec 2009 Blog Entries: 7	Thanks for the suggestion. The case is only 40mm high so size might be an issue with that specific supply. I will however e-mail Connex and ask if they can use caps with a lower profile.

1st October 2012, 02:57 PM	#4
giannettino diyAudio Member Join Date: Oct 2004 Location: Italy	I think the DPS 500 series can be perfect... Link

1st October 2012, 03:26 PM	#5
markusA diyAudio Member Join Date: Dec 2009 Blog Entries: 7	Looks nice but it doesn't say anything about the physical dimensions and it's way too expensive at the moment.

1st October 2012, 03:31 PM	#6
giannettino diyAudio Member Join Date: Oct 2004 Location: Italy	Ok..understand.. I have a couple of them driving 4 "old" Nuforce Ref 9 V2 pcb each..and they work very good Ciao!

1st October 2012, 03:48 PM	#8
markusA diyAudio Member Join Date: Dec 2009 Blog Entries: 7	I like power as much as the next guy but I could easily get away with 160VA transformers. A 400VA transformer would never fit in the case anywho. Building two monoblocks...

3rd October 2012, 07:18 PM	#10
Koifarm diyAudio Member Join Date: Aug 2005	Just use linearsupply with 2x10000uf caps. This sounds better then a SMPS with the ST modules. Do not try to save a view bucks.

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