Tube subwoofers?

It would be best to use a passive sub with outboard tube amp if you wanted to go this way. I don't think think the tubes would last very long inside an active sub..plus there would be heat to think of, not a good idea for active.

Dave

There are alot of people using passive horn subs powered by SET amps. Well, maybe not alot, but they are out there. One drawback of this approach is that the horns tend to be rather large and not exactly domestic.

I've just been listening to the Seventh Veil loudspeaker system with Tom Evans' Soul (tube) Power amplifiers.

Initially the Soul amps were just used for the full-range speakers and an inexpensive solid-state power amps were used for the bass.

Changing to Soul amps for the subs as well as the mains made a dramatic difference top the bass, integration, tone and timing.

Of course the Soul amps have a far better bass end than many tube amplifiers and the solid-state amps used were relatively cheap and could, no doubt be easily surpassed.

Still, this listening session changed my ideas about amplifying subs (particularly with the Seventh Veil speakers). Ideally I would now go fo tube amps throughout, with the sub amps matching the main amps if possible.

Steve