The 400T has a built-in delay and is protected against short circuit and clipping.
The 400T is powered by a class-D power amplifier with UcD technics, resulting
in an extremely stable amplifier which works noiselessly. The high efficiency of
the class-D power amp makes any cooling redundant.
Installation directions for use
1. Connect the amplifier exclusively to a power-point with earth pin.
2. When you connect or disconnect your bass, take care the Gain knob is
put to 0 or use the Mute switch to avoid switch clicks.
3. In order to set a distortion-free amplification it is advised to open the
Master knob ¾ to full. After that the volume is controlled by using the
Gain knob.
4. Under normal acoustical circumstances there is no need to use the tone
controls. However, if one should use the tone controls, it is advised to do
so carefully. Each tone control goes up to +12/-12 dB. The sensitivity
increases while turning the knob clockwise and anticlockwise.
5. The minimal impedance of an extra loudspeaker cabinet (400T in
combo) is 8 Ohms.
6. The minimal impedance of the stand alone 400T amplifier is 4 Ohms.
7. Only use a loudspeaker cable of excellent quality.
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