I have Amperex BB EL34's on the way for my LM integrated. I will chime in next week to give my opinion on them. I was told Mullard tend to be warmer than Amperex, while the latter is warmer than the Siemans. It should be interesting anyway. My guess is they will kill my stock chinese tubes, which aren't too shabby. These cost like 1/4 of what the amp cost, so expectations are high.
EL 34 question
I have a VAC PA 35.35 EL 34 push-pull amp, that has had factory upgrades. I was quite happy with it, until I started using a modified SET 300B amp, which has blown the VAC completely out of the water.
I am actually giving thought to selling it, but decided to see if tube rolling might bring it closer in performance to the SET amp.
I have two sets of output tubes that are used, a matched quad of reissue Genelex KT 77, and a matched quad of reissued Mullard EL 34's.
The small tubes are NOS Telefunken 12AU7 and 12AT7, all aound three years in use.
I'm just hoping I can get some insight as to whether better performance can be gleaned from this old amp.
My experience with tubes is recent, lots I don't know, so any old salts that care to help with suggestions would be great.
By the way, the speakers are 94db sensitive custom Tannoy HPD's.
Best regards,
Dan
I am actually giving thought to selling it, but decided to see if tube rolling might bring it closer in performance to the SET amp.
I have two sets of output tubes that are used, a matched quad of reissue Genelex KT 77, and a matched quad of reissued Mullard EL 34's.
The small tubes are NOS Telefunken 12AU7 and 12AT7, all aound three years in use.
I'm just hoping I can get some insight as to whether better performance can be gleaned from this old amp.
My experience with tubes is recent, lots I don't know, so any old salts that care to help with suggestions would be great.
By the way, the speakers are 94db sensitive custom Tannoy HPD's.
Best regards,
Dan