tinears3938
Member
I was contacted to check a intermittant problem on a churches sound system. I was met by the worship director he briefed on what was happening, about 2 months after installing subs on the house PA the right sub would cutout then come back on & continue during services, he told me they put the donated old hiss & hum series CS 800s in the shop 3 times & they found nothing wrong with the amps. The Rane xover was new as well as all new cords. He also told me that one of their members was an electrician & checked out the system but couldn't find the problem. Armed with this info to work I go, 1st thing I did was clean all the jacks & cable ends on the sub side of the xover & amps with a connex tool, then I swaped sides A & B leaving the xover & the amps next I checked the speaker cord, it was new with binding post type end by the amps so I checked the subs input panel, it was on the floor with the cut 1/4 phone jack in it. This must be the craftmanship of the electrician, he wired the speaker cord to the PV BW18s terminals & simply put duct tape over the hole on the sub. Ok this will work for testing. With the PA powered on and my MP3 player patched into the board I ran the system at about 110 DB for 10 mins. or so. Other than the smiley face on the EQs the system sounded fine & the sub never missed a lick. Im thinking maybe they run it louder so for saftey I turn off the top end amp & push the subs till rite at clip level, still no gremlins. This was odd, my cell phone rings so I turn down volume to take the call about 15 seconds later the sub cuts OUT I finished the call walking to see my gremblin it comes back on making a sound like the VCs rubbing the gap. the systems at 70 DBs now,at first I thought I had blown the sub. I removed the grill and pushed on the cone trying to make it rub, but no it was well centered. As I moved it it cut in & out. Ok the speaker has a defect & is in warranty. PAY ATTENTION HERE I called the dealer who sold it to them & he asked what kind of cabnet was it in? I told him it was An old JBL Cabaret series sub cabnet. He then informed me that PEAVY DOSE NOT WARRANTY SPEAKERS IF THEY ARE NOT IN A PEAVY CABNET. Thinking thats baloney I called a friend who is a PV dealer, he said that was correct... THAT SUCKS!!!!!! Ok Im over it. I took the 18 to my shop using a proper solvent I removed the dust cap and the glue from the cones eyes, here was the problem a bad solder joint on the tinsel wire at the VC lead. With repairs made & a new dust cap installed the 18 lived happily ever after. Remember your speakers are watching you... 8O
Jeff
Jeff