Hi,
No plans that I'm aware of for a USB-based remote.
Early on in the design stages of the EP400, 500, 600 and 800, we talked about remote control but it would have substantially raised the prices of the subwoofers. I actually suggested having some front-mounted controls--I hate leaning over the back of the subwoofer trying to grope for the right control. At least on the new amp, the switch for the subsonic filter is at the top of the control panel, so you could do it by feel, if necessary.
The subsonic filter, I expect, will be seldom used except for devotees of vinyl playback who are bothered by some rumble and other infrasonic anomalies.
Regards,
Alan
