Sonic Impact Technologies Power 2 - Manual (Page 12)

10
Adjustment for Load Impedance
Note: Adjustment for load impedance should only be done by an
authorized Sonic Frontiers dealer, distributor or service technician. Any
damage to the amplifier as a result of a person(s) not authorized by
Sonic Frontiers will not be covered under warranty.
Warning: Dangerous voltages exist within this amplifier.
The nominal speaker load of the amplifier was factory set to the impedance designated
on the Voltage/Impedance sticker on the back of the chassis and shipping carton. In the
event that you should require different impedance operation, the amplifier can be set to
handle 2, 4 or 8 ohm loads. Some experimenting of this setting may be required for
speakers which vary considerable in impedance across a frequency range. To change
the output setting have your Sonic Frontiers’ dealer follow these steps:
1. Unplug all connections to the power amplifier, namely the AC power supply cord and
wait a minimum of 20 minutes for all power supplies to discharge.
2. Place the amplifier on the rear handles so it is upright and the underside is exposed.
Using the Phillips screwdriver provided unscrew the bottom panel and remove.
3. Look for the terminal blocks under the transformer housings which looks like this:
After removing the
bottom cover, locate
the terminal block
for the left channel
in the left rear corner.
The terminal block
for the right channel
in the right rear corner.