Originally Posted by
VintageJBL
I recommend getting a dedicated sub amp that will let you control the volume, crossover point and phasing. I also recommend getting a sub with an internal amp. I bought a HSU sub that works well for both home theater and music that goes down to 25hz which is low enough for an 18'x20' room. It pairs very well with the L5s for HT and music. Get a decent sub because it makes a difference. I spent $400-$500 on mine about ten years ago and it hasn't missed a beat in this time. The amp in it has enough power to cover everything from explosions with authority while subtly dealing with the nuances of music. It was designed to serve both uses and does a fine job doing so. If all you care about is music then pick a sub designed only for it.