You're welcome Sam. BTW, my WTT Classic is still hard at work for a friend after 12 years of hard work at my place. I went over to his place to hear it and I still think it is capable of producing the blackest backgrounds on the planet if set up properly........and that's compared to my new TW Raven AC and Tri-Planar 7! FYI, he is using a $200.00 Shelter cartridge.