Specifications

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: Lethal voltages exist within these amplifiers.

The speaker load handling capabilities of your amplifier was factory set to the imped-

ance designated on the Voltage/Impedance sticker on the back of the chassis. 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 amplifiers, 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 block under the transformer housings which looks like this:

After removing the

bottom cover, locate

the terminal block

in the left rear corner.