I'm looking for two good bass tuners, to use for live shows, rehersal and recording projects. I like to hook 'em up to the back of my amp and sit them on top of the amp. Don't do a whole lot of drop tuning, but having the capabilities to do so (even if it's just one or two songs) would be a plus. Looking to stay in the $150.00 and under range. There's so many out there, just looking to get an idea of which are good quality and reliable; so I can narrow down the choices. What do you guys use (brands/models)?