As suggested REL is unbeatable when it comes to music and seamless integration. REL matches with any speaker you have provided you hook them up to the power amp output with your speakers ( kind of biwire which on the sub is called hi level). You run your main speakers full range and get the sub to mate with it, which means no nasty crossover glitches or distortion is introduced in the signal chain.
Strata III is a sealead unit which is even easier to blend with the room and speakers. Strata II was ported. All the models above Strata are ported. If you have a small to medium room sealed is better.
Strata III is a sealead unit which is even easier to blend with the room and speakers. Strata II was ported. All the models above Strata are ported. If you have a small to medium room sealed is better.