Just got a new? JTV 69S from Sweetwater. First thing out of the box a cheaper one pocket black gig bag not grey like my 59 with 2 pockets for gear. Plug in after charging battery and have to crank my DT50 on 5 just to get the tunings or 12 string models to engage without hearing the guitar strings non-amplified sound. This never happened on my 500 or 2012 '59. I could turn the amp to just above minimum volume to not hear the strings clash with the 12 string models or the alt tunings. Is there a fix in workbench for this or do I have a defective 69S? Guitar plays well all other models work OK. But it's not right that I need to crank it to to hear it and then hear it distorted. Sweetwater offered to exchange but I already sent in the UPC and rebate form for this serial number and the it was past the DEC31 deadline for ordering and I don't want to lose my rebate.