Goat: I'm using a Sunfire Solitaire 10 subwoofer. I've been very impressed with its transparency. It does a good job of extending the sub-bass without adding any sonic artifacts (at least not that I can hear).
But, since you asked -- do you know if there is any type of hi-pass filter in the crossover of the S 1.4s? Since I've plugged the sub into the preamp-out of the amp (instead of threading the pre-out through the sub's high-pass filter) I'm wondering if the speakers are smart enough to not try to reproduce < 40Hz signals or if it really makes sense to route a preamp signal through the sub and use separates.
But, since you asked -- do you know if there is any type of hi-pass filter in the crossover of the S 1.4s? Since I've plugged the sub into the preamp-out of the amp (instead of threading the pre-out through the sub's high-pass filter) I'm wondering if the speakers are smart enough to not try to reproduce < 40Hz signals or if it really makes sense to route a preamp signal through the sub and use separates.