I just heard from Dan Gower say on Sunday that the TSL and DSL were a little flubby in the low end and that a boost was required. Strangely, I remember being able to play without a boost on the DSL100 that I used to own. However, I wonder if it was flubby and I just remember it differently. I was interested in the TSL60 because it has a master volume and is lower wattage than the 100. Maybe just get the JVM410 like I originally planned. I'm in contact with GC / MF about finding a JVM410 and will likely pick one up this month.