Large. Silicon Tube Damper Rings, to reduce & absorb internal vibrations that lead to microphonics etc.
Internal diameter 42mm.
This size suits 6550 ,KT66, KT88, KT120 ,..etc
Large. Silicon Tube Damper Rings, to reduce & absorb internal vibrations that lead to microphonics etc.
Internal diameter 42mm.
This size suits 6550 ,KT66, KT88, KT120 ,..etc
edwin –
just put them in, have no idea if they work, best sound anyway