Operating instructions

OPERATING INSTRUCTIONS STEREO POWER AMP 2/250W

1. IEC Socket and Fuse Holder This is the socket for plug in the line cord. The fuse tray contains the main fuse of the

Power Amp. Replace the fuse only with the same type and size.

2. Voltage Selector Switch (115V/230V) This switch is set at the factory to the correct voltage for your country. It can

easily be changed to 230V or 115V by switching to the correct position. Fuse values are T5AL for 230V and T10AL for

115V. Note when the wrong voltage value is set, there is a serious risk of damage to the unit if this is done incorrectly.

3. Ground/Lift Switch This switch is included to remove hum and buzz when connecting to equipment powered by a

different ground system.

4. Stereo/Bridged Switch This switch is to select Stereo or Bridged Mode (in bridge mode the amplifier works as a 500Wmono amp).

5. Output Impedance Selector (2, 4 or 8Ω Stereo/4, 8 or 16Ω Bridged) This adjusts the correct impedance depeding

on the impedance of the used speaker system. Before engaging the Power Amplifier be sure that the correct impedance

is adjusted to obtain the maximum rated power. Note the table for Stereo and Bridge setting. Never connect Speaker

Cabinets with lower load as in the selected position is labelled on the amplifier. This will result in over heating of the

amplifier and shutting down into protection mode.

6. Speaker Output The Stereo Power Amp features three ¼” and lockable coaxial speaker sockets for channel I,

channel II and bridged mode (center socket). To avoid damages connect Speaker Cabinets before main power

is applied to the unit. When connecting Speaker Cabinets we recommend to use the lockable coaxial speaker socked

preference to the ¼” jack as it provides a far superior connection.

¼” jacks have been added for a user-friendly handling when it is absolutely necessary to use them (for example by old

cabinets without lockable speaker connection). Before turning on the amplifier make sure that the speakers are

connected and the impedance switch is set to the correct position.

7. Input The Stereo Power Amps features two ¼” audio input jacks for connecting the instrument Preamp.

Input I is coupled with Input II when input II is not connected.