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Title: OTS-50 or HRM-50 Mystery Post by: Lucky Lou on October 05, 2013, 02:40:33 AM I'm not sure about the model amp I have, it has a HRM faceplate, (with the push/pull bright switch on the vol.) but doesn't have a trim pot in back, it's on a circuit board inside the chassis. I suspect it's an OTS-50 that's been modified. Were the HRM's originally designed with the trim pot inside? The info I've read says the HRM models came out in 2008, the power tranny on my amp is dated 10/11/2008, hence the mystery. Any help on this would be greatly appreciated.
Thanks, Lucky Lou Title: Re: OTS-50 or HRM-50 Mystery Post by: fltundra on May 13, 2014, 03:18:35 PM Trim on the board, you have an older HRM.
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