I am considering using Vandersteen 2wq’s with 3a sigs and the M5-HT crossover. So, according to Vandersteen, I will be connecting the sub and speakers to the amp output.The manual for the 2wq sub indicates that its input impedance is more than 100,000 ohms, resulting in it having "no discernible effect on the output of the main amplifier." The manual also recommends physically connecting both the sub and the main speakers directly to the amplifier, and therefore the amplifier-to-sub connections will not be in the path to the main speakers.
So what I said in my previous post is applicable.
Regards,
-- Al