I've been using SubDudes for years with a pair of Velodyne HGS-15s controlled by an SMS-1 bass manager. In my application, the SubDudes eliminated a boominess and let extended LF be appreciated. That may have been before I installed the SMS-1, I just don't recall, but now both are in use, there is no boominess, and I'm not going to try the setup without the SubDudes, because the HGS-15s are very heavy. I'm leaving well enough alone.
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