I did a search for this but didn't find exactly what I'm looking for. Living in a small city It's hard to get good comparisons of good gear and an envelope/filter is definately next on the list which brings me to. 1. Aguilar filter twin 2. Mini Qtron The local shop has the Qtron in stock but has trouble getting a single Aguilar unit in. Should I just splurge and get the Qtron. I've heard clips of both and the Qtron sounds nice and quacky and looks freakin cool. The aguilars seem to be very well made, has a great but relativly understated 'quack' and would take up less space on my board. I would gladly get the Qtron next week if there are no issues with bass drop off, volume fluctuations etc. Any input or comparisons would be appreciated.