MODEL LF Designed for subwoofers, gives a good performance even with low volume.Je uses low-volume boxes, and I filters 200Hz solicits much in the sound systems (reggae \ dancehall). they are combined audio cpx1500 a crest. (15pouce, 40Hz, 500wrms for 90euros)

SOUNDS

Made good in all low frequencies, dynamic speaker and is well power without "slamming". Tolrent They "small abuse ..."

OVERALL OPINION

I do not know meileur qualitprix report on the market today, I have been using 2ans.Parfois they scare me because they heat a lot (the collection's outdoor loving the box). I grill DIFFERENT 3modles before, against the delta by 15 lf I have never du.Les delta 15 work well but they also go down in a little less serious