For a time Innersound trumped Logan's for bass integration but that line has been blurred in last 2-3 years, the Innseround employs a transmission line bass loading system and requires 2 amps with a provided external bass amp with built in crossover. The Innersounds big problem is its flat statter which offers only a 20in or so sweetspot, so often it is called a "head in a vice" speaker that looses its magic quickly outside that narrow area, but inside that space it does things that simply amaze you.