Hypex SMPS - When Is It Coming? Alternatives?

theseum · 20th December 2006, 03:35 PM

I'm looking to build a hypex amp with two UCD180's and I've read rumors that Hypex will soon be shipping an SMPS power supply -- does anybody know when this might happen?

Also, are there any products out there right now that will work just as well? Part of me wants to wait for the supply that I know is designed for the modules to "just work", but on the other hand I am getting impatient!

thanks very much!

Dag · 20th December 2006, 03:49 PM

Hi!

Coldamp has two smps but I do not know if they are good. Last time I checked there were no data/measurements on noise and line/load regulation.

http://www.coldamp.com/opencms/openc.../en/index.html

D

ackcheng · 20th December 2006, 04:24 PM

I did some testing on it before. Sound very good

testing of SPS80 SMPS

ssanmor · 20th December 2006, 05:35 PM

You can find two SMPS specifically designed for audio at our web, www.coldamp.com.

The first one (SPS80) has been used by a lot of customers so far, some of them with our modules, some with UCD, some with LC Audio and some with linear/tube amps. All of them seem to be very satisfied with its performance and sound, so far. There is a higher voltage output version (SPS80HV) designed for +/-80V output, approx.
The other one (SPS30) is to be available from next week, slightly less powerful but sharing the same design.

All of our supplies have an auxiliary +/-12V regulated output, very useful for powering the driver stage of the BP4078, active preamplifiers, etc.

Both of them work very well with our modules and, judging from the tests from our customers, with our competitors' as well. However, you can find that we offer special prices for packs including supply and coldamp amplifiers.

Load regulation is excellent, dropping around 1V at max output (try to get this with a linear!) and noise is very low, you can see some measurements posted by ackcheng and others. We will try to progressively include more measurements in the datasheets.

Best regards,
Sergio

mourip · 20th December 2006, 07:31 PM

Quote:

Originally posted by ssanmor
You can find two SMPS specifically designed for audio at our web, www.coldamp.com.

The first one (SPS80) has been used by a lot of customers so far, some of them with our modules, some with UCD, some with LC Audio and some with linear/tube amps. All of them seem to be very satisfied with its performance and sound, so far. There is a higher voltage output version (SPS80HV) designed for +/-80V output, approx.
The other one (SPS30) is to be available from next week, slightly less powerful but sharing the same design.

All of our supplies have an auxiliary +/-12V regulated output, very useful for powering the driver stage of the BP4078, active preamplifiers, etc.

Both of them work very well with our modules and, judging from the tests from our customers, with our competitors' as well. However, you can find that we offer special prices for packs including supply and coldamp amplifiers.

Load regulation is excellent, dropping around 1V at max output (try to get this with a linear!) and noise is very low, you can see some measurements posted by ackcheng and others. We will try to progressively include more measurements in the datasheets.

Best regards,
Sergio

Do either the SPS80 or the SPS30 have DC sensing circuits to monitor the amp outputs like the Hypex linear supplies do?

Thanks!

ssanmor · 20th December 2006, 07:58 PM

No, that's up to the builder! The supplies don't include the DC protection circuit, but we can provide schematics for that to the customers who ask for it, we consider it a simple exercise that will increase the DIYer fun

Fin · 20th December 2006, 11:14 PM

This eBay shop is selling some smps for audio:-
Stadholder Tek

Not sure how good they are.........................but the price looks nice

theAnonymous1 · 21st December 2006, 12:31 PM

Quote:

Originally posted by Fin
This eBay shop is selling some smps for audio:-
Stadholder Tek

Not sure how good they are.........................but the price looks nice

I contemplated buying one of those supplies some time ago. I came to the conclusion that +-45v @ 2A is pretty useless unless you plan on powering >16 ohm speakers.

Fin · 21st December 2006, 02:49 PM

Quote:

Originally posted by theAnonymous1

I contemplated buying one of those supplies some time ago. I came to the conclusion that +-45v @ 2A is pretty useless unless you plan on powering >16 ohm speakers.

Any good for use with one of these?

EB-TA0103

ssanmor · 21st December 2006, 02:57 PM

You will require several supplies to power that: a main supply (I assume around +/-50V to +/-60V, that you could obtain with the supply you proposed, although it is so small that it won't work,
then +/-5V for the input stage, and then +12V referenced to the negative rail for the driver.

You can still use a coldamp PSU, using the aux +/-12V (reducing them with 7805/7905) to get the +/-5V input section voltage, and then generate the +12V referred to GND with a simple circuit from the negative rail (drop us an e-mail to ask, if you are interested).

20th December 2006, 03:35 PM	#1
theseum diyAudio Member Join Date: Apr 2006 Location: philly	Hypex SMPS - When Is It Coming? Alternatives? I'm looking to build a hypex amp with two UCD180's and I've read rumors that Hypex will soon be shipping an SMPS power supply -- does anybody know when this might happen? Also, are there any products out there right now that will work just as well? Part of me wants to wait for the supply that I know is designed for the modules to "just work", but on the other hand I am getting impatient! thanks very much!

20th December 2006, 11:14 PM	#7
Fin diyAudio Member Join Date: Dec 2003 Location: -	This eBay shop is selling some smps for audio:- Stadholder Tek Not sure how good they are.........................but the price looks nice __________________ Regards Fin

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20th December 2006, 03:49 PM	#2
Dag diyAudio Member Join Date: Feb 2005 Location: Goteborg	Hi! Coldamp has two smps but I do not know if they are good. Last time I checked there were no data/measurements on noise and line/load regulation. http://www.coldamp.com/opencms/openc.../en/index.html D

20th December 2006, 04:24 PM	#3
ackcheng diyAudio Member Join Date: Dec 2003 Location: hong Kong	I did some testing on it before. Sound very good testing of SPS80 SMPS

20th December 2006, 05:35 PM	#4
ssanmor diyAudio Member Join Date: Jan 2002 Location: Madrid	You can find two SMPS specifically designed for audio at our web, www.coldamp.com. The first one (SPS80) has been used by a lot of customers so far, some of them with our modules, some with UCD, some with LC Audio and some with linear/tube amps. All of them seem to be very satisfied with its performance and sound, so far. There is a higher voltage output version (SPS80HV) designed for +/-80V output, approx. The other one (SPS30) is to be available from next week, slightly less powerful but sharing the same design. All of our supplies have an auxiliary +/-12V regulated output, very useful for powering the driver stage of the BP4078, active preamplifiers, etc. Both of them work very well with our modules and, judging from the tests from our customers, with our competitors' as well. However, you can find that we offer special prices for packs including supply and coldamp amplifiers. Load regulation is excellent, dropping around 1V at max output (try to get this with a linear!) and noise is very low, you can see some measurements posted by ackcheng and others. We will try to progressively include more measurements in the datasheets. Best regards, Sergio

20th December 2006, 07:58 PM	#6
ssanmor diyAudio Member Join Date: Jan 2002 Location: Madrid	No, that's up to the builder! The supplies don't include the DC protection circuit, but we can provide schematics for that to the customers who ask for it, we consider it a simple exercise that will increase the DIYer fun

21st December 2006, 02:57 PM	#10
ssanmor diyAudio Member Join Date: Jan 2002 Location: Madrid	You will require several supplies to power that: a main supply (I assume around +/-50V to +/-60V, that you could obtain with the supply you proposed, although it is so small that it won't work, then +/-5V for the input stage, and then +12V referenced to the negative rail for the driver. You can still use a coldamp PSU, using the aux +/-12V (reducing them with 7805/7905) to get the +/-5V input section voltage, and then generate the +12V referred to GND with a simple circuit from the negative rail (drop us an e-mail to ask, if you are interested).

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