What is the accepted etiquette when going to a music shop to try out, with the potential to purchase, a bass amp? I went a couple of weeks back but I got the feeling one shop wasn't taking me seriously and I had to badger them, only to try out one amp (out of a possible 4 amps on my shortlist). The other shop was a bit more open but didn't have the same range of amps so I was unable to compare side by side the ones I wanted to hear.
So this time I'm going back, but hopefully with a bit more success. Its a practise amp of around 30W I'm after, so I don't need it to be super loud but I do want a nice proper tone (some of the little ones are useless, just trebly).
I guess taking my own bass guitars (I have 2, both passive, and of very different nature, and one is 'quiet' in its output) shows I'm kinda serious. I'd rather not go on a Saturday (shops are much busier) but my GF is a schoolteacher so there's no chance to go without her in a weekday, and I value a second (bit more impartial) opinion.
Is it fair game to want to plug into a number of amps and spend a little while with each, adjusting its tone controls etc to try get the pleasing sound I'm after?