Audioengine S6 210W Compact Powered Subwoofer with Powerful Bass in a Small Package - For Gamers, Music Lovers, Movie Buffs - Grey

I have paired this speaker with Audioengine's A2+ which now gives them the low end punch they require. Clean, tight bass from this relatively small speaker. Excellent build quality. I can highly recommend.

further to my earlier note, this goes very well with the ae2's

I got this to complement my Audio engine 2+ speakers. Plug straight in with the supplied RCA cable. Takes some adjustment as there are volume and crossover controls. If you are new to this as I was, volume is the overall volume of the output and crossover is the frequency at which the sub starts to work. Lower means it will only kick in at super low thumps, higher means it will be more integrated into low end range of sound. As it explains in the simple manual - experiment! One thing though, it is very, very powerful so paired with my little speakers for music it's almost on minimum volume. I've got the crossover about two thirds up so it's a smoother effect. Brilliant results now it's set up for my ears!