AC Upgrades
The simplest AC modification is to primary power: Place the
purifiers between the AC input -- typically an IEC socket -- and the transformer
input. For best results the recommended procedure is to put a purifier on both
the hot and the neutral leg; besides yielding better sound, this will ensure
full quantum purification even if the component is connected to an incorrectly
wired (out of polarity) AC receptacle. If it is certain that the wall outlet
is wired with correct polarity, the purifier on the neutral leg may be omitted,
with some decrease in sonic performance. Note: If the equipment
is used in a location that has balanced AC power, both the hot
and neutral legs must be modified, and a third purifier on the ground
leg will result in optimal improvement.
The amount of voltage passing through a purifier is inconsequential. More important
is the amount of current. The large purifiers are rated for 15 A,
the small for 4.3 A. (These ratings reflect the capacity of
the copper leads.)
An even more effective AC treatment is to secondary power: Place
purifiers between the transformer and the rectification diodes. The number of
purifiers required may vary according to the circuit design of the component. One
purifier should be used for each transformer tap utilized. Some users have
reported even more impressive results from placing purifiers after the
diode bridge.
Note: Treating secondary power is NOT recommended
for designs utilizing tube rectification. In such cases it is
preferable to modify the primary AC input. Also, when trading secondary
power in tube amplifiers, DO NOT place a purifier on the filaments transformer
tap.