Personally I wouldn't buy a Klipsch sub, but I'd want more than a 25% discount if I bought one, and I'd rather have the SPL-150 of their two better subs (the SPL-120 being the other currently). Not sure why you're comparing a sealed Rythmik to the ported Klipsch either other than price....I'm not a particular fan of Rythmik either, tho
Why is the budget so firm? Is a single sub the best you can do? I'd prefer multiples.....even if I had to save up for future additions to a good start.