I also use the Duelund wire in my tube amp mod with the Blue Cactus caps and resistors Jeff Day likes per his site.
Very nice! However the best mod to take is bypassing the speaker binding posts on my amp. Best sonic improvement I have heard to date with my latest amp project. Just think no more thick metal binding post or even thick metal connectors on the speaker cable. I inserted some Teflon bolts and nuts where the binding posts were and use them as a clamp to clamp together the bare speaker wire with output wires from the trannys that now exit the back of the amp. This was a very noticeable improvement!
Very nice! However the best mod to take is bypassing the speaker binding posts on my amp. Best sonic improvement I have heard to date with my latest amp project. Just think no more thick metal binding post or even thick metal connectors on the speaker cable. I inserted some Teflon bolts and nuts where the binding posts were and use them as a clamp to clamp together the bare speaker wire with output wires from the trannys that now exit the back of the amp. This was a very noticeable improvement!