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Hum sound ..is it me or is it you? LOUD hum in system

I sold a classe SSP-30 preamp 2nd week of April. worked fine. I played with it . zero noise at all.
sold it to get a simpler dedicated 2 channel preamp.

nearly two weeks after it was delivered I get an email saying that when the classe 30 is installed there is loud hum...but when its not there is no issue. 

that is all I am told..and "I want to send it back"

im kind of agitated that buyer took his sweet time to get around to checking it out or whatever.  Not sure what to do or what I can do. I told him to send it back so I can see it.

my question is, I read lots of info on grounding loops and funny noises .   because buyer claims he has noise does it leave me any other choice but to take it back?

I used the pre before I sold it for this exact type of reason.  i just didnt take video.   im not to pleased with the extra long delay neither. seems like if you spend that much money on something you check it out right away. it doesnt take a lot to hook up a preamp.

i find it hard to believe a preamp of this caliber would even have ground issues.

I dont know what to do. I feel like I am at this guys mercy no matter what?
gentlejax
perazzi28's avatar
perazzi28
238 posts
 
I completely understand your frustrations and believe that unless you expressly stated that your item could be returned then you are not obligated to do so. My understanding is that used equipment is as is with no return.
Most importantly you have no control over how the buyer connects all of his associated equipment.
The preamplifier should never have it's grounded AC plug floated with a cheater plug! Everything else is fair game for this scenario and is actually the best methodology to eliminate hum.
Multiple AC outlets can be a primary cause of ground loops and consequential hum. And you sir are not responsible for the buyers poor or incomplete understanding of the proper procedure to eliminate hum.
I would advise you to communicate this to the buyer and that the solution to correct the hum issue is not inherently the fault of the Classe preamplifier he aquired from you.
crazyeddy's avatar
crazyeddy
381 posts
 

What a horror story!!

 I guess that's the down side of e-commerce and long distance transactions to persons unknown these days. The saying used to be "buyer beware", but now it's also "seller beware"

Sorry to hear about your unfortunate ordeal gentlegax

gentlejax OP
40 posts
 
Ive played the unit all weekend with no issue..no "loud Hum" or anything else.  sounds fine..its just got some dings that were not there when I shipped it.

I took after pics, already had before pics and send them to Paypal.  I also provided them with the contact info of the other poster here that also dealt with this guy.

Im angry that a person would buy items then use them or try to sell them and when they dont get desired outcome go to paypal and demand refund.  and get away with it. 

its basically free trial for the stuff.  and whats worse is this is a high end type of site . you would think people had more class.

im still waiting on the outcome. I havnt seen anything from the buyer in the claim, I provided pics and I would still be providing info but apparently you must do it all at once or some ignorant stuff. .

guy has a lot of purchases. I hope to stop some of that.  he is going to do this again since its just way too easy .
Post removed 
gentlejax OP
40 posts
 
"I  would not buy from you as you have 0 feedback since 2010.Good luck though!! ""


lol I have been around a long time but didnt buy or sell anything here.  I sold a Proceed PRE and far as I know its fine..but buyer never left feedback.

This was my 2nd transaction...but I have 707+ on ebay.....sold more amps than Kicker on DIYMA ....I have refs...
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