Technics Su-v470 Pxs Cap

jamo2005 · 27th June 2005, 12:22 PM

Technics SU-V470 PXS CAP

Hi! Recently i've acquired used Technics amplifier su-v470 pxs cap.
Unfortunately cannot find any full specs on it., there is an SVI3205 module inside, sound and output of it seems to be quite nice, but there is always room for improvement...
There are two technics caps 6800mf per rail in the psu part.
can anyone give me any suggestions as to its specs and or schematics, and also what are the mods that i can do to it in respect to possibly raising psu's capacitance to improve performance?
I've read some threads on a similar topic, but any input would be helful! i did some mods on my 10yr old 90w+90w solid state amp
its a some russian made model, which is now used to power other room, (replaced all electrolytics, attenuated quiscents and so on, i've spent quite some time on it to make it sing well), but to compare it with technics - technics seems to perform better in the mid range, its more open, but to me it seems it lacks some power from psu, not sure if those 6800mf caps are enough for it, along with the trannie 480w written on the back.
thanks again for your replies!

ggatland · 25th June 2008, 06:35 AM

Hi.

I am scouring the internet to find a supplier for a replacement SVI3205 Power Amplifier. Do you know where I might be able to purchase one of these from?
Thanks

bichi · 25th June 2008, 07:30 PM

SU-V470 schematic:
http://www.eserviceinfo.com/download.php?fileid=26071

SVI3205 SIP Module:
http://www.bdent.com/search/search.j...FSQdagod8AKhgA

27th June 2005, 12:22 PM	#1
jamo2005 diyAudio Member Join Date: Jun 2005 Location: europe	Technics Su-v470 Pxs Cap Technics SU-V470 PXS CAP Hi! Recently i've acquired used Technics amplifier su-v470 pxs cap. Unfortunately cannot find any full specs on it., there is an SVI3205 module inside, sound and output of it seems to be quite nice, but there is always room for improvement... There are two technics caps 6800mf per rail in the psu part. can anyone give me any suggestions as to its specs and or schematics, and also what are the mods that i can do to it in respect to possibly raising psu's capacitance to improve performance? I've read some threads on a similar topic, but any input would be helful! i did some mods on my 10yr old 90w+90w solid state amp its a some russian made model, which is now used to power other room, (replaced all electrolytics, attenuated quiscents and so on, i've spent quite some time on it to make it sing well), but to compare it with technics - technics seems to perform better in the mid range, its more open, but to me it seems it lacks some power from psu, not sure if those 6800mf caps are enough for it, along with the trannie 480w written on the back. thanks again for your replies!

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25th June 2008, 06:35 AM	#2
ggatland diyAudio Member Join Date: Jun 2008	Hi. I am scouring the internet to find a supplier for a replacement SVI3205 Power Amplifier. Do you know where I might be able to purchase one of these from? Thanks

25th June 2008, 07:30 PM	#3
bichi diyAudio Member Join Date: Aug 2007	SU-V470 schematic: http://www.eserviceinfo.com/download.php?fileid=26071 SVI3205 SIP Module: http://www.bdent.com/search/search.j...FSQdagod8AKhgA