Owned Cls2z many other logans much perfer fullrange drivers systems usually with a super tweeter.So they are not truley fullrange! also most [fullranges] need help with bass so you end up with a 3 driver system !only Fullrange I have used or heard with a fullrange sound is fostex f200a it has all the bass 1 would need I get a usable 30hz-21khz .Owned many other FR drivers.All need help in 1 way or another except f200a..Just my 2 cents worth