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Master 0:
this setting will maintain the same phase as the signal applied to it.
1. Use this setting if the amplifier is not bridged with another amplifier.
2. When bridging the amplifiers, use this setting only on the amplifier that is connected to the head unit.
Master 180:
this setting will reverse the phase 180 degrees of the signal input into the amplifier.
1. Use this setting if the amplifier is not bridged with another amplifier and the subwoofer(s) are out of phase with the satellite
speakers in the vehicle.
2. When bridging the amplifiers, use this setting only on the amplifier that is connected to the head unit. Only apply this if the
subwoofer(s) are out of phase with the satellite speakers in the vehicle.
Slave:
this setting limits the controls of the secondary amplifier in a bridged pair.
1. Use this setting only on the second amplifier in a bridged pair. All crossover, subsonic and level controls of this amplifier will be
bypassed. The amplifier set on one of the two Master settings will then control each of the preamp functions for both amplifiers.
SUBSONIC FILTER
The subsonic filter is used to reduce the amount of low frequency harmonics and/or subsonic noise picked up in audio systems.
Both of these can be damaging to subwoofers and possibly the amplifier(s). As well, harmonics and subsonic noise can cause
the amplifier(s) to pull excess power from your electrical system.
This filter is switchable, ON/OFF, and variable from 20Hz to 50Hz. The subsonic filter is switchable as every system is different.
For most people it is desirable to have the filter ON. However, if you have an outright SPL system, it may be beneficial to turn OFF
the subsonic filter because harmonics can actually increase the sound pressure in many cases. So what frequency should you
set the subsonic filter at? For most applications it is desirable to leave this between 20Hz and 30Hz. If you are using a ported
enclosure designed for SPL, yet you are using the system on a daily basis, a higher filter frequency may be desired. This will allow
the enclosure to be tuned higher and reduce the chance of the woofer to becoming non-linear and destroying itself.
BRIDGE SETTINGS AND WIRING
