If he's been running it without a high pass filter in place be careful; these were not designed to operate for long under those conditions.
Vandy 2W w/o crossover
There is a gent near me who has a Vandersteen 2W for a pretty good price. The catch is that he doesn't have a crossover for it and, apparently, never has (he bought the sub used). Can the 2W even be used without its crossover? I thought I'd required a proprietary crossover to function?