I have a 1971 SF Super Reverb and a 1957 Fender Tweed Champ. I play 99% of the time in my house, and even though its overkill, I don't want to lose the SR (just make it smaller and maybe a little less loud). I also want to be able to hear the Champ thru something other than the original stock 8" speaker. I was wanting to use both amps as basically heads and have the ability to run them each (though not at the same time) thru a 2x10" extension cab. I have (I believe) four good 10" CTS speakers in the '71 Super Reverb and was planning on using two of them for the extension cab...at least for now. I believe the SR needs to see 2 Ohms and the Champ wants to see 4 ohms (actually 3.2 or something?). Instead of going to 6V6s or changing the SR OT or having a OT/speaker ohm mismatch...would a Weber Z Matcher at roughly $100 be the easiest and cheapest way to be able to run each of these amps to the 2x10" CTS alnicos? I know my limits and would not do any tube amp electrical mods in the chassis myself...other than maybe rehousing each amp chassis in a head cab. thanks for educating an electrical dunce.