The Infinity Kappa 692.91 are easy to install and offer audiophile level performance. Solid bass accurate mids and crystal clear highs. My high top conversion van has 6.75", 4x6", 6x9" in front doors, mid side, rear side all Infinity speakers and the sound is so sweet! Every seat is the best seat (all seven)Because imaginging is so spacious that you can't tell where the music is coming from. 780 watts drive my speakers, with 720 watts of hard hitting 12" pioneer sub unleashing a bountiful supply of bass that shakes everything including the rear view mirror (no small thing for a van of this size). DVD/VCR and cell phone comes through my Clarion based head unit Clarion 7 channel Equalizer and pure Infinity Quality speakers. I'm jammin' too hard everywhere I go. You know it's the speakers that make it all sound so awesome. Traffic is surprised to hear amazing sounding music coming from a family van. I'm 44 and my four kids appreciate my good taste.