Snell type B:any upgrades?

Snell Type A reference would be a logical choice. Or you could go one step farther and go with a Revel Studio or Salon, both of which are also design's of Kevin Voecks and only improve on his older Type A design.

Everyone forgot one possibility, the strongest one - upgraded crossover parts. Don't even think about changing any of the drivers. You will destroy the speaker. But upgraded coils, caps and resistors will make a substantial improvement. If you can get the crossovers out without doing any damage, ship 'em off to me, and in a week you'll have them back, and you'll hear greater liquidity, bass definition, and way less treble grain.

Hope you can excuse my crashing the party, but I used to sell at a shop (in the early-mid 90's) that handled these speakers, and never cottoned to their sound. To me, they sounded excessively bass-heavy, slow, colored in the mids, closed-in on top, and lacking in transparency and coherence. They also stuck me as being too big for the volume levels they were capable of delivering comfortably. (Just for the record, I did not feel that way about the less ambitious and smaller D, E, and K models, which I thought were outstandingly natural and musical for their respective modest price ranges - a paradox that only contributed to my disappointment with the larger Snells, not including the very fine A.) Obviously, not everyone will agree with that assessment, but to me, if you have the itch to make an improvement, I'd start by auditioning some newer speaker alternatives.

I would agree there - I think the D was the best speaker Snell made, and I owned the A and C/V.

Lneilb: I can see that being true for many users, as the big A was difficult to set up optimally or even find an appropriate home for (something that can often apply to large flagship efforts). I agree with your take on the C/V: nice try, no cigar. On the other hand, those smaller 90's-vintage Snells would be a steal today for anyone looking used in their catagories, probably fully competitive with anything else available at similar prices - easy to drive, too.