By: Ben Vollmer, Car Audio Nationals/Team SoundDomain

So today started bright and early. We left the the hotel after a few hours sleep and headed over to Mobile SoundStage Engineering for the first day of Mark Eldridge's Sound Quality training. As soon as we entered the room, we spotted some great gear set up for use during the class.

Some vintage JBL 15 inch pro woofers, and Mark's old Altec 802d compression drivers on some nice JBL horns, all in 5 cubic foot vented enclosures, and lots of clean power to drive them all. Everything got really loud, and sounded very nice. Listening to music on his equipment was nothing short of awesome. Mark also had some Genelec monitors with a JL Audio Fathom 12-inch sub, along with some other manufacturer's speakers. We had a good selection of equipment to for Mark to demonstrate many different applications and acoustical issues.


One of the coolest exercises of the day involved dual equalizers. Mark shut off all of the speakers except one, and selected one band on the equalizer and moved it.

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