Some amps that use EL 34's will also accept 6L6's. CHECK WITH THE MANUFACTURER FOR COMPATIBILITY!
Tube substitution in VTL amps
I'm interested to find out a bit about tube substitution. I purchased a set of VTL amps a couple of years ago (2.5 & 2xST85) shipped over to the UK. These are my first tube amps and I'm basically delighted but occasionally miss the slam / bite of my previous solid state kit. I gather the EL34 is fairly well known for a softer sound and wondered if it's possible to get more bite by putting different tubes in the pre or power amps? Would this have any downsides as I assume the amps are designed for EL34s? Would changing tubes unbalance the sound at all? Any pointers would be much appreciated.
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