2. amps-preamps
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Help -- EAD PM1000 and REL Strata III experience?

When I turn off my amp, I get a loud hum, unless I turn down the volume, from the REL. My understanding is that the PM1000 has no grounding, due to its internally bridged design (dual differential?). I've contact EAD and my REL dealer, but no luck yet. Has anyone experienced this with my combination. I tried lifting the ground with a cheater plug, connect REL's grounding lead to the PM1000 chassis screw--still the hum. I have yet to contact Sumiko. It's my last option.

Thanks for any help.

Ken
kyyuan
richm53
2 posts
 
Ken
I also have a PM1000 and a REL Q201 sub and am having the same difficulty with hum. I contacted Sumiko-they were not able to give me a solution,neither was EAD. I am about to have an electrician check the grounding in my 100 year old apartment , I thought that the outlets are not grounded properly, when I plug in a surge protector with a test light for grounding the test light comes on. I will let you know if that is the problem, although my system is totally clean otherwise.
Please let me know if you find a solution-Thanks
rich
vongwinner
26 posts
 
I had a simular problem with a Citation 5.1 and a Rel Storm. After contacting sumiko I got a hold of one of their tech support guys who helped me. I believe a 201 still has the "rel cable" If so try attaching the red and yellow leads to the + and - of the same chanel and the Black wire on the - of the of the other channel. Also you can attach the red and yellow cable to the + of one side and the black wire to the - on the other side. I fooled aroung with many different connections and was told that one will eventually work. If this doesent work please let me know and I can send you some more suggestions.
kyyuan OP
28 posts
 
Vongwinner and Richm53,

Thanks for the posts. I will try Vongwinner's suggestions and let you guys know the results.

Have a nice weekend,

Ken
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