Well, I thought my Shiva was dead but it turned out that just the speaker is dead. No sound at all.....never had that happen before. Anyone have any idea what the cause might be? Every blown speaker I've encountered just made awful noises...not silence. That being said, I'm looking for some opinions (and we all know TGP is not short of opinionated.....ah, I mean opinions). The Classic Lead 80 that is standard really did sound great in it so a direct replacement is a no brainer. What about a GOLD? Worth over twice the price? Change in sound character? Anyone using anything else with their Shivas? BTW: this is an older 6L6 version.