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Pass X-250 with REL sub

Hi all,
I have been advised that because of the design of the Pass Labs, I can only use the REL sub running from low level outputs. Something to do with the speaker terminals on the Pass not being or being a floating ground. Shame as I have no spare pre-outs.
Probably the least of my worries as the Pass has been plagued with problems from day one and my patience is at an end.
Does anyone have experience of running a Pass /REL combo from the high level outputs??
Do anyone have experience of grounding problems with the Pass which causes a PA system like buzzing thru the speakers.
It's not a grounding loop but a problem with the amp itself as I have been trying to tell Pass for six months.
Thanks Simon
simon74
flg2001's avatar
flg2001
543 posts
 
I am just recently having some hum issues with my X250 since I am still runingthru a non-dedicated power line, and I am sharing power withthe christmas tree!!!, once the tree is off hum issues dissapear.

Fernando
Ag insider logo xs@2x
drubin
3,274 posts
 
A few years ago, I had a Pass X150 and bought a REL sub. I could not get the REL to work properly and could not get a good explanation from either Pass or from Sumiko, the US disctributor of REL. I returned the REL. I still do not know what the problem is with this pairing. Never had any hum problems with the Pass however.
danlib1
819 posts
 
Simon- you wrote-

"Probably the least of my worries as the Pass has been plagued with problems from day one and my patience is at an end".

I own the X-250 and a X2.5 Preamp, and have dealt with the Pass folks. I found them to be extremely customer focused and pleasant people, including Nelson himself.

If you feel in any way that your Pass X-250 is less than it should be, I recommend calling Peter or Nelson @ Pass Labs. I think they're great guys and will go the extra mile to help you.

Good Luck.
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