JP, don't worry about it. I have a brand new Sony SACD player that has a fixed 120Hz bass crossover. At least your "old" HK receiver is better than this! I don't like the fixed 120Hz crossover, but my Hsu VTF-3R sub is close enough to my M60 mains that I can't localize it. If your sub is anywhere close to your mains, you're probably OK.