I have an Allen Old Flame combo (based on a BF Super Reverb). I bought it used as a 2x10 combo, had David Allen make me a 1x12 baffle and put a Weber Legacy M 75, 65 Watt 12 in it. I felt the two 10s were as you described your's were. The one Weber Legacy 12 in the combo now sounds outstanding.... clean and overdriven.I just did extensive speaker testing with a Vibrolux Reverb. It is not a Blackface - I think it is an early nineties blonde CVR. There have been some minor mods done to the amp. My biggest beef with the amp was that it was a little too "ice picky" for me and therefore did not handle over-drive pedals well IMO. Just too brittle. I played it at band practice and really struggled with the over-drive situations. (As I am the lead guitarist for my band, this was a potential deal breaker) The amp sounded great on the clean stuff and even handled my distortion pedal OK, as well as other effects, but the crunch and OD sounds just didn't cut it.
We (my amp tech and me) tried all sorts of things and ultimately solved the brittleness issue by swapping the 12AX7 in V6 (PI tube) for a 12AT7. WOW!!!! Just made the amp sound wonderful in every way. It reduces the power of the amp, but actually seemed to increase the amount of usable (for my needs) sweep on the volume pot. Interestingly, my amp tech had two different 12AT7s and one of them made the amp sound amazing and the other one did not. I'm pretty sure the original VRs had a 12AT7 in V6. After the experience I just had - Why Fender would change this is beyond me.
I have a 2x12 cab with JBL K120s, a 2x10 cab loaded with JBLs (not sure of the number), and there are two Weber 10" California speakers on board the CVR. In addition to the Webers, we tried the 2x10 JBLs, the 2x12 JBLs, a single JBL and a single 12" JBL with the 2x10 JBLs.
IMO this was not a fair fight. Both the 2x12 cab or a single 12" JBL blew the 10s away. The cleans were chimey and full bodied and the dirty sounds were just stellar. Both sets of 10s sounded dull and uninspiring in comparison. I know changing the baffle to handle a ten and a twelve is a common mod for the VR and I went into this exercise pretty sure that's what I would do. But after almost two hours of testing, I think I am going to go for a 1x12. I can always use an extension cab if need be.
As the 2x12 cab is an absolute monster (I think each K120 weighs almost 19 lbs.), that cab will never go on a gig. I am thinking of putting one of them in a good 1x12 cab. I could put the other in the CVR, but if I can find another 12" speaker that sounds good, I could save almost 10 lbs. and be a really happy camper. Does anybody have any speaker suggestions?? I play in a classic rock cover band. (Allman Bros., Steely Dan, Clapton, etc.) I am NOT looking for thin paper Jensen type speakers as I don't think they will handle higher gain situations that I like.
Kenny, let me hop in on this.Also... let me ask you. You mentioned in your post that when you replaced the P.I. tube that one of the two 12at7s sounded great and the other did not.
Specifically which 12at7 did you finally put in the amp which made the amp sound great in your opinion ?