connex TA3020 v3c

lbstyling · 17th August 2010, 05:36 PM

Hello all,

Ive bought and built 4 connex TA3020 V3C's (tripath 3020 chip) using the suggested smps modules made by the same company.

They sound realy good and im very happy, but I would like to try and get the noise floor just that little bit lower to make the amp perfect to my ears.

What can I do to drop the floor??

Thanks all.

lbstyling · 17th August 2010, 06:15 PM

ps- I have a little bit of a squeek/squeel sound from one of the modules - not much above the noise floor - but it is there. Any ideas what this is?

r0b · 17th August 2010, 07:47 PM

Hi,

absolutely no Pro on the topic or on the modules, but just looking at it I would suggest trying an enclosure that might shield the setup a bit more. To try if it does anything, move the setup far away from any source of radiation. (Which might prove to be quite challenging...)

r0b

lbstyling · 17th August 2010, 09:34 PM

Ok,thankyou.
thats a start.
The modules are going into a enclosure at some point- I made the rack you currently see to evaluate and make any changes needed before I started messing around with cutting enclosures etc.
I was thinking of separating the smps from the amp module with a aluminium wall or somthing like that- was thinking of star earthing or somthing like that??

col · 18th August 2010, 12:32 AM

I agree with Rob also, you have the speaker wires crossing the power cables from the SMPS into the amp module? I wouldn't start changing components on the amp module unless you REALLY know what you are doing. Are you on the ConnexElectronic Class T thread?

col.

lbstyling · 22nd August 2010, 10:03 PM

just a qick update- I moved the cables and the high pitched noise has gone.

Im looking to try bridging 2 of the amps next- do I just solder the point up or do I have to put a resistor in it or somthing?

where to I take the speaker out from when its bridged?

17th August 2010, 05:36 PM	#1
lbstyling diyAudio Member Join Date: Jul 2008	connex TA3020 v3c Hello all, Ive bought and built 4 connex TA3020 V3C's (tripath 3020 chip) using the suggested smps modules made by the same company. They sound realy good and im very happy, but I would like to try and get the noise floor just that little bit lower to make the amp perfect to my ears. What can I do to drop the floor?? Thanks all.

18th August 2010, 12:32 AM	#5
col diyAudio Member Join Date: Feb 2008 Location: Melbourne, Victoria, Australia	I agree with Rob also, you have the speaker wires crossing the power cables from the SMPS into the amp module? I wouldn't start changing components on the amp module unless you REALLY know what you are doing. Are you on the ConnexElectronic Class T thread? col. __________________ http://www.minirig.org.au

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17th August 2010, 06:15 PM	#2
lbstyling diyAudio Member Join Date: Jul 2008	ps- I have a little bit of a squeek/squeel sound from one of the modules - not much above the noise floor - but it is there. Any ideas what this is?

17th August 2010, 07:47 PM	#3
r0b diyAudio Member Join Date: Sep 2009	Hi, absolutely no Pro on the topic or on the modules, but just looking at it I would suggest trying an enclosure that might shield the setup a bit more. To try if it does anything, move the setup far away from any source of radiation. (Which might prove to be quite challenging...) r0b

17th August 2010, 09:34 PM	#4
lbstyling diyAudio Member Join Date: Jul 2008	Ok,thankyou. thats a start. The modules are going into a enclosure at some point- I made the rack you currently see to evaluate and make any changes needed before I started messing around with cutting enclosures etc. I was thinking of separating the smps from the amp module with a aluminium wall or somthing like that- was thinking of star earthing or somthing like that??

22nd August 2010, 10:03 PM	#6
lbstyling diyAudio Member Join Date: Jul 2008	just a qick update- I moved the cables and the high pitched noise has gone. Im looking to try bridging 2 of the amps next- do I just solder the point up or do I have to put a resistor in it or somthing? where to I take the speaker out from when its bridged?

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