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Old 5th March 2011, 09:46 PM   #1
back is offline back  Greece
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Default smps comparisons.

hi guys.

anybody compared connexelectronic with hypex coldamp audiopower psu?

i see connexeletronic have good price (smps1000a)hypex 1200 is very expensive

and not regulated.

audiopower (900watt)and coldamp(800watt) are somewhere in the middle.

you think i would be good with connexelectronics or should i spend more for

the most expensive ones?

george.
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Old 6th March 2011, 09:25 AM   #2
ssanmor is offline ssanmor  Spain
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Just a clarification: our coldamp SPS80 is officially rated at 800W but this is a very conservative number, we and some of our customers use them with audio amplifiers up to 1.5KW or more with no problems. In fact we are thinking in changing the rating because experience is demonstrating us that some theoretically more powerful units (on the paper) cannot produce as much as power as ours. Reliability is also one of the strongest points, they are even used in military-like applications with almost no modifications, but also in studios where sound quality is the most important point.

This may not be your case and perhaps you don't need so much, but just in case that is a deciding factor...

Last edited by ssanmor; 6th March 2011 at 09:27 AM.
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Old 6th March 2011, 09:47 AM   #3
back is offline back  Greece
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Quote:
Originally Posted by ssanmor View Post
Just a clarification: our coldamp SPS80 is officially rated at 800W but this is a very conservative number, we and some of our customers use them with audio amplifiers up to 1.5KW or more with no problems. In fact we are thinking in changing the rating because experience is demonstrating us that some theoretically more powerful units (on the paper) cannot produce as much as power as ours. Reliability is also one of the strongest points, they are even used in military-like applications with almost no modifications, but also in studios where sound quality is the most important point.

This may not be your case and perhaps you don't need so much, but just in case that is a deciding factor...
i have already buy two of your smps and i know they are good and powerfull.

but they are a bit pricey and i was wondering if i can get away with

something cheaper like the connexelectronics.

my first concern is sound quality and not power.

i will buy 2 for monoblocks anyway.

Last edited by back; 6th March 2011 at 09:51 AM.
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Old 6th March 2011, 10:10 AM   #4
ssanmor is offline ssanmor  Spain
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Ok, sorry, didn't recognize you as an existing customer. Please drop us an e-mail and we are sure we can do something about that prices.
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Old 6th March 2011, 10:20 AM   #5
back is offline back  Greece
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Default hypex ucd2k

i have build a hypex ucd2k with one of your psu at each rail.

and i must admit you were very helpfull since i was the first to try something like that.

i guess you remember now.
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Old 6th March 2011, 10:37 AM   #6
ssanmor is offline ssanmor  Spain
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Of course I remember now. How was the experience? Did it work as expected?
After that and some other customers' experience we realized that our PSUs can be squeezed more provided that the load is balanced (bridged amplifiers). Having a look at UCD2K datasheet, I see it is.

So perhaps you should try with 1 single SPS80HV set at +/-90V driving a single UcD2K, we are sure it will surprise you, perhaps with reinforced with 6800-10000uF capacitors per rail.
It should work quite well, and if overcurrent protection triggers at very high power level, we can tell you how to raise it a bit.
Please contact us, we are interested in testing this setup and we can provide a very good price to you plus support and warranty.
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Old 6th March 2011, 03:47 PM   #7
AP2 is offline AP2  Italy
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Hi,
sorry if I say, just to clarify my point of view.
if you are referring to our product, "DPS-500 / S, I must point out that the performances and Measures are currently not comparable with any existing SMPS. is not only the power to make a difference.
DPS-500 / S can deliver 1kW of peak sound repetitive, with 200mV rms ripple.
Absolute Absence of noise with clean DC output,is a product of new technology, specifically designed to solve the power supplies in serious high-end area.
to sounding the same (fast bass) two ucd400, not enough 2x40000uF
at 63V on a torus by 4 kg.
The DPS-500 series is the only one that also solves the PSRR in Class D Amps. even this can demostrate new tech.
The power regulator (absolutely analog 150ns response time) designed to achieve this psu, provides only 2.7 V of voltage drop in dynamic measurement (burst 800W).
This new concept not play on big capacitors, then, no external parts requires
He is currently sales -33%, I think for another month.

Best Regards

Roberto P.

Last edited by AP2; 6th March 2011 at 03:53 PM.
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Old 6th March 2011, 04:14 PM   #8
back is offline back  Greece
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Join Date: Nov 2005
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Quote:
Originally Posted by ssanmor View Post
Of course I remember now. How was the experience? Did it work as expected?
After that and some other customers' experience we realized that our PSUs can be squeezed more provided that the load is balanced (bridged amplifiers). Having a look at UCD2K datasheet, I see it is.

So perhaps you should try with 1 single SPS80HV set at +/-90V driving a single UcD2K, we are sure it will surprise you, perhaps with reinforced with 6800-10000uF capacitors per rail.
It should work quite well, and if overcurrent protection triggers at very high power level, we can tell you how to raise it a bit.
Please contact us, we are interested in testing this setup and we can provide a very good price to you plus support and warranty.

it worked great.

it`s pushing a jbl 18 inch cinema series.

no need to touch this amp.

besides the psu are not HV and one wouldn`t be enough to power both rails

from a voltage perspective.
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Old 6th March 2011, 04:16 PM   #9
back is offline back  Greece
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Join Date: Nov 2005
Location: crete
Quote:
Originally Posted by AP2 View Post
To Back
Hi,
sorry if I say, just to clarify my point of view.
if you are referring to our product, "DPS-500 / S, I must point out that the performances and Measures are currently not comparable with any existing SMPS. is not only the power to make a difference.
DPS-500 / S can deliver 1kW of peak sound repetitive, with 200mV rms ripple.
Absolute Absence of noise with clean DC output,is a product of new technology, specifically designed to solve the power supplies in serious high-end area.
to sounding the same (fast bass) two ucd400, not enough 2x40000uF
at 63V on a torus by 4 kg.
The DPS-500 series is the only one that also solves the PSRR in Class D Amps. even this can demostrate new tech.
The power regulator (absolutely analog 150ns response time) designed to achieve this psu, provides only 2.7 V of voltage drop in dynamic measurement (burst 800W).
This new concept not play on big capacitors, then, no external parts requires
He is currently sales -33%, I think for another month.

Best Regards

Roberto P.
hi roberto.

i was refering to DPS 800.
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Old 6th March 2011, 04:30 PM   #10
AP2 is offline AP2  Italy
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Quote:
Originally Posted by back View Post
hi roberto.

i was refering to DPS 800.
Hi Back,
ah! sorry,site not update (new AudioPower shop coming soon) maybe tomorrow.
DPS-800 is 1,2Kw continuos (1,5kw repetitive audio peak).
same features of DPS-500-S.

Regards
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