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PostPosted: Sun Oct 08, 2017 12:05 pm 
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In the process of building my BYOC Champlifier, I noticed what looks like a discrepancy in the documentation of the PT/power cord wiring:

-Pages 29/30 of the instructions shows the PT brown/white and black/white connected to the white of the power cord, and the black power cord going to the switch.
-The layout pdf, however, has the power cord white going to the switch, and the black power cord connected to the PT's brown/white and black/white.

Hoping someone can tell me which is correct.

Also, I've noticed in other amp building discussions that people strongly recommend running the power cord black/hot to the fuse first, then from the fuse to the the switch. Is there a reason why the BYOC instructions show the power cord black going from switch to fuse? I'm confused.

BTW, I have the amp wired according to the page 29/30 instructions. Everything works fine and the amp sounds great. Just would like some peace of mind on the wiring safety.

Thanks in advance.


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PostPosted: Sun Oct 08, 2017 2:25 pm 
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You did it correctly. The original Champlifier (2017 version) instructions had the black & white wires switched, but this was corrected in the current release. It appears that the layout drawing hasn't "caught up"....

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PostPosted: Sun Oct 08, 2017 3:06 pm 
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Thanks, duhvoodoman. Have to say, I really appreciated the quality of the instructions. I've done a few manuals myself, so I know they're a huge amount of work.

Any info on the hot to switch vs hot to fuse issue?


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PostPosted: Sun Oct 08, 2017 5:31 pm 
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I'd wire it to fuse first. Just in case some oddball catastrophic switch failure happens or like a loose part shorts out to the switch.

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PostPosted: Mon Oct 09, 2017 12:27 pm 
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+1 It's generally agreed upon that it's a bit safer to wire from the power cord to the fuse first, specifically to the tip of the fuse, not the ring. That way, if you have a short or something, live voltage stops right at the fuse instead of flowing through the power switch to the fuse.

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PostPosted: Wed Oct 11, 2017 9:01 pm 
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Thanks, Morgan + spin. Will rewire.


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