Do kick drums with no front head have less SPL ? Reason I ask the band I mixed this past weekend had drummer with no front head and got the Audix D6 signal as hot as possible thru Presonus SL 1642 with EV Live X rig with 12's over 18's but hardly no kick in the mix. Which it was a small 100 seater maybe 40 pplin the room and band wasn't that loud on stage. Just lacked any kick in the mix unlike with other bands I mixed in the past had plenty of kick, but their drummers had front kick head with small port hole. Just curious to know ? does not having front kick head lose it's thump power. Sorry for the dumb question