Help:ampeg svt 2 pro 100v>>240v

jujumusic · 30th May 2010, 11:54 AM

I purchased one AMPEG SVT II PRO amp head in japan.This AMP voltage is 100V. China's voltage is 220V.

I want to change the voltage to 240V.

I only found original SVT II jumper method,But they are not the same.

Who can help me.

Many thanks.

MellowTone · 31st May 2010, 03:22 PM

Find the email for Ampeg tech support and fire them off an email. I sent one to them (would be 18 months or more ago now) and I got a quick response and clear instructions. By far the easiest method and they know what they're talking about.

jujumusic · 27th June 2010, 04:24 PM

bob91343 · 27th June 2010, 07:05 PM

One way to do it is to use a Variac and supply 100V to operate it. Then measure the voltages on the various primary taps until you find a pair close to 240V. Those will be your new input power connections.

30th May 2010, 11:54 AM	#1
jujumusic diyAudio Member Join Date: May 2010	Help:ampeg svt 2 pro 100v>>240v I purchased one AMPEG SVT II PRO amp head in japan.This AMP voltage is 100V. China's voltage is 220V. I want to change the voltage to 240V. I only found original SVT II jumper method,But they are not the same. Who can help me. Many thanks.

31st May 2010, 03:22 PM	#2
MellowTone diyAudio Member Join Date: Jun 2006	Find the email for Ampeg tech support and fire them off an email. I sent one to them (would be 18 months or more ago now) and I got a quick response and clear instructions. By far the easiest method and they know what they're talking about. __________________ I Reject Your Reality And Substitute My Own - Adam Savage, Mythbuster

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27th June 2010, 04:24 PM	#3
jujumusic diyAudio Member Join Date: May 2010

27th June 2010, 07:05 PM	#4
bob91343 diyAudio Member Join Date: Mar 2010	One way to do it is to use a Variac and supply 100V to operate it. Then measure the voltages on the various primary taps until you find a pair close to 240V. Those will be your new input power connections.

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