AVS Special Member
Join Date: Dec 2007
Location: Southern California
Mentioned: 3 Post(s)
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I would set the sub crossover to around 40-50 Hz (assuming that your front speakers will go that low; they are rated to go down to 40 hz, so that should be the case).
If you set it for a higher frequency it will conflict with the 6.1 speakers too much, which makes the bass muddy and not clear-sounding. Limit sub operation to below 40 hz if possible.
I would only set a speaker to small if its largest driver is 3" or less.
I would use anything available except Toslink. Toslink is well-known for poor performance.