Speaker decouplers aim to isolate speakers from the surface on which they sit. This newer, more affordbale DMSD 50 Pro design has been optimised for speakers weighing up to 12kg (ie. most nearfield monitors).
The ‘True Phantom’ unit appears to be a typical two-channel phantom power supply box but inside it involves a far more sophisticated and elegant engineering approach than the standard IEC-specified phantom supply arrangement.
The Towner system fits many guitars that have a separate bridge and stop tailpiece. It mainly works with Bigsby B3 and Bigsby B6 vibrato units, enabling them to be secured using a single two-inch strap-button screw.