Operation Manual

ENG

LOUDSPEAKER CONNECTIONS

- In 2-channel operation (i.e. one loudspeaker on each amplifier channel), the impedance must

not be lower than 2 ohms for each speaker

- In bridging mode (two amplifier outputs combined) the impedance must not be lower than 4 ohms

for the bridged output.

- Never connect loudspeaker cables with the ground of the chassis or the +12 V supply voltage.

If the amplifier is operated with a too low impedance or incorrectly used, the entire sound system

may be damaged. This means a warranty void in such cases.

SIGNAL OUTPUTS TO CONNECT ADDITIONAL AMPLIFIERS

The input signal on the INPUT jacks (Fig. 1,4) will be routed in stereo to the output jacks OUTPUT

(Fig. 1, 3). Thus the OUTPUT jack allows the connection of an additional amplifier.

OPERATING ELEMENTS

The input sensitivity can be adjusted to any headunit. Turn the volume control of your headunit to the

center medium position and then adjust the input level controls (Fig. 1,5) until you have an average

medium level. This setting usually provides sufficient power reserves at optimum signal-to-noise ratio.

INPUT SENSITIVITY

If the amplifier is used to drive a subwoofer, set the switch (Fig. 1, 6) to "LP". Set the desired cross-

over frequency by using the controller (Fig. 1, 8). Thus to that only the frequencies below the chosen

cross-over frequency will be amplified and the subwoofer plays more accurate and efficient.

VARIABLE LOWPASS FILTER

If the amplifier is to be used for mid-range/tweeter loudspeakers, set the switch (Fig. 1,6) to "HP". Set

the desired cross-over frequency on controller (Fig.1, 7). Thus to that only the frequencies above the

chosen cross-over frequency will be amplified. This effectively minimizes distortions and overloads at

lower frequencies. A good point to start is at 125 Hz. For bigger loudspeakers (>20 cm) set the switch

(Fig. 1,6) to ”FULL”. In this configuration the high pass controller (Fig.1, 7) is without function.

VARIABLE HIGHPASS FILTER

With the bass boost controller (Fig.1, 9) you are able to adjust the bass level from 0 - 12 dB at 45 Hz.

VARIABLE BASS BOOST