Impedance Matching
The available impedance settings on your Spartacus are:
- 8 ohms – use for speakers rated 6 to 16 ohms
- 4 ohms - use for speakers rated 2 to 6 ohms
Since the impedance of most loudspeakers vary over a wide range experimentation is
essential. Most speakers have a rated impedance of 4 or 8 ohms. We recommend
starting with the 8 ohm connection; after you know the sound if that connection, try the 4
ohm connection. Choose the connection that sounds best to your ears.
Input Gain
The sonic signature of the power amplifier changes slightly with this switch as the load
presented to the preamplifier changes drasticaly. Depending on the quality of the
preamplifier and its output impedance and drive capability you might get better results
on a different setting than the recomended. Interconect cables present a different
coloration at the diferent gain setting. Chose the setting that maches your tase and
system .
Tube replacement
Your Spartacus has a built in timer that counts the tubes working time. When tubes
replacement is due, after swithing the unit on, the green LED will keep flashing after warm
up time elapses. You may continue using your Spartacus mono amplifier but the sound
quality will soon start to deteriorate. We strongly advise you to order replacement tubes
from your Thrax Audio dealer as soon as possible.
After replacing the tubes you should reset the timer - in stand by mode (main switch on
the back panel is on) press the “ON/OFF” button on the front panel for 10 seconds.
Manual issued 24/02/2012
TIPS
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