I currently have a denon avr-1913 and five energy veritas v5.2 speakers. These speakers are bookshelf speakers with 5.25" woofers. Would setting the crossover frequency to 100 Hz affect the sound negatively by localizing the subwoofer? If not, then maybe I could take advantage of the xs30's superior mid bass power. If 100 Hz wouldn't work, I think the xs30 would be overkill, considering it cost more than all five of my other speakers. Also, the tone adjustment of the Hsu sounds great in theory, but I worry that it may be prone to failure due to increased complexity. Any thoughts on these topics? I would like to decide by the end of the week. Thanks.