JVC Zero 9 restoration

My next door neighbor put these huge speakers on the curb for trash pickup. He had them stored in his garage for a few years, and it was time for him to let them go. Each tower weighs about 110 pounds, and instead of paying an extra fee for the large/heavy item trash pickup, I told him that I would take them off his hands. Each tower has two 12-inch woofers, a 5.25-inch midrange, and a ribbon tweeter.

The surrounds (the sponge/rubber gasket) on all the woofers were dry rotted and had to be replaced, so I bought 2 kits (2 surrounds per kit) online for generic 12-inch woofers and glued them up with the special glue that came with the kit.

I've never had a set of speakers of any real quality, so I was a little surprised to find that the towers had fuses. One tower had a fuse that needed to be replaced. The opposite had a slow blow fuse, so I found one that was similar in rating. The tower had no output from the ribbon tweeter even after replacing fuse. Took the tweeter apart and found that one of the traces that make up the membrane was burnt open. After a fruitless search for a replacement, I decided to use a conductive pen to complete the trace. Had my doubts about the cheap fix, but it worked great. To my ears the high frequencies are the same from both towers.

Overall, this is an impressive set of speakers. Highs and mid's are great, bass is substantial. I knocked down several pictures from the walls and the fireplace mantel when testing to see how loud I could get them. I didn't want to blow up my relatively cheap receiver, so I didn't push them farther than "knocking down stuff" level. These should be a great addition to the game room.