Yes - that's the BIT line - the IS products contain only the transformer with options to include surge suppression and automatic voltage regulation. They use Plitron transformers and ZeroSurge for surge suppression. Fairly expensive (the BIT-15 retails for $2195), but well worth it, IMHO.
Plitron also markets their own products for the A/V market under the Torus Power brand. If you need a small isolation transformer, their TOT line might fit the bill. Another way to save money is to look at Plitron's medical product line - it seems to be mostly the same technology, but at half the cost. For example, an 1800 VA unit with surge suppression (PM-08908-00) currently sells for 1151.23 CAD or $959.84 direct from Plitron (http://shop.plitron.com/shopdisplayproducts.asp?id=106&cat=North+American).