Sound Quality Optimization - Goldmund TELOS 153 User Manual

6

SOUND QUALITY OPTIMIZATION

Warm-up sonic effect
If the power amplifier has not been powered on for a few days, the optimum sound quality
is reached after 15 minutes. This delay has been optimized to be minimal and the sonic
quality when just powered on is much higher than other quality power amplifiers.
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 next section), there is a possibility to increase
the sonic quality of your speakers again 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
The sonic quality of your Goldmund Telos 153 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 TELOS 153 - Universal Power Amplifier - 9