EAR/Cart mismatch, gain overload sounds likely. I agree that a Dyna 20x is a good choice; be careful it comes in a high & medium output versions. Other carts to think about include Denon 103r, Shelter 501, whatever you can afford in the ZYX line. If you have a friend who can setup let you try something with lower gain than the Blue Point, that will help you diagnose if this is the core issue. Cartridge loading also shouldn't be ignored!
I'm not going to debate the merits or not of the EAR, but say that before you think about selling it for anything, you should get a better handle on the root cause of your trouble. Experimenting with another phono stage and/or cart is best way.
Also, fine to power down and swap tubes just a couple minutes later. When they are cool enought to touch, you're fine. Ideally, gloves or a small towel will help you avoid getting oils from your fingers on the tubes; not the end of the world, but easily avoided.
I bet if you post about it, you can find other A-goners in your neighborhood willing to help you...Cheers,
Spencer
I'm not going to debate the merits or not of the EAR, but say that before you think about selling it for anything, you should get a better handle on the root cause of your trouble. Experimenting with another phono stage and/or cart is best way.
Also, fine to power down and swap tubes just a couple minutes later. When they are cool enought to touch, you're fine. Ideally, gloves or a small towel will help you avoid getting oils from your fingers on the tubes; not the end of the world, but easily avoided.
I bet if you post about it, you can find other A-goners in your neighborhood willing to help you...Cheers,
Spencer