Goldmund METIS ONE User Manual page 8

6 SOUND QUALITY OPTIMIZATION (Ctd.)
Speaker polarity Speaker polarity
Speaker polarity Speaker polarity
Even if you have an absolute phase inverter on your preamplifier, and even if you have
carefully selected the proper line phase (see in next section), there is a possibility to
again increase the sonic quality of your speakers by reverting the polarity of each
speaker cable at amplifier termination. But since the line phase and the speaker polarity
interfere to each other, you have to experiment carefully with all the combinations before
picking the right one.
If your preamplifier has an absolute phase inverter, this will interfere too. If it does not
have an absolute phase inverter, do not forget the result will depend on the source, as
most records and CDs have been recorded without care for the absolute phase. Be
patient...
Mains line phase inversion Mains line Mains line Mains line phase inversion phase inversion phase inversion
The sonic quality of your Goldmund Metis One can be greatly improved if the mains AC
line is properly connected. Try to invert the AC plugs of both your amplifiers, using
special adapters.
We recommend that you try this carefully. You must do it in combination with the
speaker polarity and/or with absolute phase switching to be sure of the best
result.
GOLDMUND METIS ONE – Universal Power Amplifier - 8