TU-77M is a Million Maestro Foot, which is one of Harmonix excellent products. The TU-77M is recommended mainly for use with your power amp, DAC, and preamplifier.
In order to maximize effect, the TU-77M Million is to be installed at the edge corner of the equipment. If the Power Amp is placed on a carpet, it is suggested to use the TU-333EX under the TU-77M which will maintain the liveliness and further improve the tuning effect. Your power amplifier is, as part of the system, extremely important to apply tuning to. Strongly recommended.
TU-77M Million must be placed straight in the vertical direction.