I hot rodded my TMS4 system to the max. JBL 10", JBL 18", EV horn driver, digital crossover with extensive Smaart testing, the works. I made a lot of $ with that system. But it doesn't compare to the new Aspect wide system I have now. If you're looking for a nice sounding, not very loud system, use the original components, including the passive crossover, and have at it. Push the system hard (a boost at 400 hz) and the 10" speaker will die. Carry spares. Realize that by todays standards the system DOESN'T array. A used Turbo Flashlight system would, in my opinion, be a better starter system. Once you have a system with REAL pattern control and DOES array properly, it's hard to go back.