I discovered the seemingly wackiest, most woo-woo audio tweak I have ever encountered.
Please note the special crystal power source to handle the Tachyon field.

From the Kemp Elektroniks website:
MAXiiMUS P16
Maximization of natural energy
The MAXiiMUS derives its energy from the permanent flow of electrons from nature. This flow of electrons is caused by the difference in potential between the ionosphere and the earth. The strong Tachyon field in the accumulators inside the MAXiiMUS acts as an antenna which derives electrons from this potential difference and injects them directly into the circuit. This process enhances the efficiency of the electricity, which in turn leads to less power consumption. Audio/video sets will significantly benefit from this process too!
Single phase parallel unit
Plug&Play, no additional costs for installing
Raises efficiency of electricity
Optimises natural energy in homes and buildings
Harmonises low frequeny and high frequency elektrosmog
Repolarises underground water lines and other geopathic disturbances
Very long service life, doesn't need any maintenance
Environmentally friendly - energy consumption near zero
Wall mounting as a standard, foot for vertical erection supplied
Size of energy field created: approximate 13 m / 43 ft.Length of power cord 1.5 m / 5 ft.
Color white (RAL 9016)
Weight 4.7 kg / 10 lbs.
Sizes 32.3x18.8x6.2 cm / 12.7x7.4x2.4" (without bottom plate)
Please note the special crystal power source to handle the Tachyon field.

From the Kemp Elektroniks website:
MAXiiMUS P16
Maximization of natural energy
The MAXiiMUS derives its energy from the permanent flow of electrons from nature. This flow of electrons is caused by the difference in potential between the ionosphere and the earth. The strong Tachyon field in the accumulators inside the MAXiiMUS acts as an antenna which derives electrons from this potential difference and injects them directly into the circuit. This process enhances the efficiency of the electricity, which in turn leads to less power consumption. Audio/video sets will significantly benefit from this process too!
Single phase parallel unit
Plug&Play, no additional costs for installing
Raises efficiency of electricity
Optimises natural energy in homes and buildings
Harmonises low frequeny and high frequency elektrosmog
Repolarises underground water lines and other geopathic disturbances
Very long service life, doesn't need any maintenance
Environmentally friendly - energy consumption near zero
Wall mounting as a standard, foot for vertical erection supplied
Size of energy field created: approximate 13 m / 43 ft.Length of power cord 1.5 m / 5 ft.
Color white (RAL 9016)
Weight 4.7 kg / 10 lbs.
Sizes 32.3x18.8x6.2 cm / 12.7x7.4x2.4" (without bottom plate)