Need Advice on Amp Audition at a Dealers


I'm thinking I should take my present amp to swap in and out for comparison. Should I be doing anything else?
128x128tuberist
buy a spl meter to ensure level matching, otherwise you will most likely prefer the louder setup....
have fun !

Verify with the dealer that they are OK with that. They might not be to protect their assets in case something is wrong with the amp. 

If they are local an in home demo would be best as always. 
I think bringing a "comedy stunt" amp that sparks and smokes a little would be hilarious.
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