Pass X350 voltage & current

ANADIGIT · 11th June 2010, 10:43 AM

Hi,
I had got Pass X350 from USA but it can't use in 220VAC.
How do I change primary voltage and current with a new transformer ?

I decide to order Amplimo Transformer but I can't see any voltage and current information of power transformer.

regard
Anadigit

BobEllis · 11th June 2010, 01:15 PM

X350.5 probably close enough for sourcing a step down transformer, but I bet that you can rearrange the wiring internally to run your amp on 220.

Nelson Pass · 11th June 2010, 02:29 PM

The voltage is are 76 volts c.t. at 16 amps, which produces
+/-57 volt rails.

ANADIGIT · 13th June 2010, 01:24 PM

So many thanks PAPA.

Your ampliifer drive my speaker more powerfull.

Thanks
Anadigit

HiFi Si · 17th June 2010, 02:47 AM

Without sounding too ignorant, but isnt there quite a bit more to this than just changing the transformer?

I looked at buying one from Reno a few years ago, but received the advice that the led in the front also plays a role and there is quite a lot more to change and get the biasing right, etc?

I gave up and purchased a new X350.5 and XP10. Love them!

Nelson Pass · 17th June 2010, 08:25 PM

No, it pretty much comes down to having the right transformer
taps and changing the fuse/breaker value.

motionpicture007 · 13th July 2010, 01:49 AM

I have a late model Pass X350 with a single voltage transformer. I am selling it to a buyer over seas and he wants to know if the voltage can be changed to run on 220v. (Asia) Can this be done at Pass Labs or am I stuck? Any help would be great regarding this.

tinitus · 13th July 2010, 02:06 AM

motionpicture, your question is a commercial affair, and not diy
you have to contact PassLab directly

motionpicture007 · 13th July 2010, 02:12 AM

Thank you, I figured that would be the case as he wants Pass to do the work.

Nelson Pass · 13th July 2010, 02:22 PM

Quote:

Originally Posted by motionpicture007

I have a late model Pass X350 with a single voltage transformer.

I am not aware that there are X350's with only the single
voltage transformer.

11th June 2010, 10:43 AM	#1
ANADIGIT diyAudio Member Join Date: Nov 2008	Pass X350 voltage & current Hi, I had got Pass X350 from USA but it can't use in 220VAC. How do I change primary voltage and current with a new transformer ? I decide to order Amplimo Transformer but I can't see any voltage and current information of power transformer. regard Anadigit

13th July 2010, 01:49 AM	#7
motionpicture007 diyAudio Member Join Date: Jul 2010	Pass Labs X350 voltage change I have a late model Pass X350 with a single voltage transformer. I am selling it to a buyer over seas and he wants to know if the voltage can be changed to run on 220v. (Asia) Can this be done at Pass Labs or am I stuck? Any help would be great regarding this.

13th July 2010, 02:12 AM	#9
motionpicture007 diyAudio Member Join Date: Jul 2010	Pass Labs X350 voltage change Thank you, I figured that would be the case as he wants Pass to do the work.

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11th June 2010, 01:15 PM	#2
BobEllis diyAudio Member Join Date: Sep 2003 Location: Upstate NY	X350.5 probably close enough for sourcing a step down transformer, but I bet that you can rearrange the wiring internally to run your amp on 220.

11th June 2010, 02:29 PM	#3
Nelson Pass The one and only Join Date: Mar 2001	The voltage is are 76 volts c.t. at 16 amps, which produces +/-57 volt rails.

17th June 2010, 02:47 AM	#5
HiFi Si diyAudio Member Join Date: Jun 2008	Without sounding too ignorant, but isnt there quite a bit more to this than just changing the transformer? I looked at buying one from Reno a few years ago, but received the advice that the led in the front also plays a role and there is quite a lot more to change and get the biasing right, etc? I gave up and purchased a new X350.5 and XP10. Love them!

17th June 2010, 08:25 PM	#6
Nelson Pass The one and only Join Date: Mar 2001	No, it pretty much comes down to having the right transformer taps and changing the fuse/breaker value.

13th July 2010, 02:06 AM	#8
tinitus diyAudio Moderator Join Date: Nov 2005	motionpicture, your question is a commercial affair, and not diy you have to contact PassLab directly

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