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Old 19th February 2012, 01:23 PM   #1
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Default Connexelectronic SMPS & Pc Analog outputs.

Hey everyone, im looking to put together a multi-channel 5.1 setup using 2x Hifimediy T3S 2 x 300W and 1x T2 with 2x Connexelectronic SMPS500R & 300R,

My concern is noise from my xonar DX soundcard analog outputs and corsair TX-650 psu..

i bought a sure 4x100w with 24v MW supply and im getting lots if static interference from the analogs of my card, (harddrive mouse scroll ect) ive tried running it on an isolated outlet with no change.

Should i be concerned about the same noise with the connex smps? if anyone has any thoughts on this before i drop almost $500 on these amps, i would be most grateful.
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Old 19th February 2012, 02:23 PM   #2
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I can't say much, except that I have never had any noise problems at all with my 41Hz TK2050 amps - ever!, using lots of different sources and power supplies, and that the Sure amps are known to be bad designs. I haven't read specifically that they are sensitive to noise, but I am inclined towards that conclusion given their other flaws.
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Old 20th February 2012, 12:32 PM   #3
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Thanks man, Im wondering if i should get another power supply for the Sure to replace the meanwell, if that would help at all. Cuz right now its not much use to me.
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Old 20th February 2012, 12:36 PM   #4
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Yeah, I reread my last message and I don't want to suggest that strongly that the Sure is to blame. I would doublecheck all and output input connections - if there's an iffy joint somewhere, the impedance can rise and allow RF noise through.

I can state that I've had no noise problems with my Mean-Well supply either with my TK2050 amps, an HRPG-200.
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Old 20th February 2012, 09:43 PM   #5
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Send a message via Yahoo to Th3 uN1Qu3
You have a ground loop. Describe your interconnects between computer and amplifier and power supply. Including power cords and the like. Are you using a grounded outlet?
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Old 21st February 2012, 03:00 PM   #6
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Quote:
Originally Posted by Th3 uN1Qu3 View Post
You have a ground loop. Describe your interconnects between computer and amplifier and power supply. Including power cords and the like. Are you using a grounded outlet?
Yep i see it right there.. easy to overlook the small stuff, i will let cha know if that did the trick! thanks guys.
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