tube amp will drive von schweikert VR4-jr?

Fishwater, Have you thought of using a SS 100-200 WPC amp for the bass section instead. I think SS on the bass will give you good impact and leave the quality tubes for the midrange and highs? just throwing it out there.

I have thought of it but it seems to be a PITA. The research I have found all seems to say there are some difficulties matching the gain between the two. Most folks also say to use an active cross-over as well. Seems like it would be difficult to match well.

I've tried the VR4jrs with Brystons and Aleph 0s. Just excellent really. Again it is a matter of taste in what type of "sounding" amp to use. In a seperate set-up, we've tried (and are currently using) a Manley Stingray (35 watts) to drive the 4jrs and they are driving them fine. Room size is around 4m x 5m. Volume levels used were reasonable, no head banging levels.

If you're using a tube amp, just make sure you have enough lead shot in the 4jrs to dampen cabinet resonances. This likewise helps in making it easier to drive as it lessens impedance dips.

Fishwater,

What isn't a PITA in hi-fi. just kidding, I know what you mean. The manual actually says that an outboard crossover isn't necessary becuase there is one internally for both sections. It also mentions good results for a 100-200 wpc SS for woofer and 30 wpc tubes for Mid-hi. But as you mentioned, it could be tough to match the levels. I don't think you'll get the best from the bass with 60 wpc tubes used for the woofers. I hope I'm wrong though.

My (current) plan is to purchase another VK 60 & run the pair in mono. That will bring it up to 120wpc vs. the 60wpc I have now.