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04. 2xT3A + 1xT5SA: to be used in a STEREO
system two T3A loudspeakers as satellites and
one T5SA as sub-woofer (see chapter 2.
Connections and fig. 4b). This PRESET is
derived from the previous one with a level
reduction and the use of a different crossover
filter.
05. T4A: for the use of the sub-woofer together with
the T4A loudspeaker system.
06. T4A HOUSE: derived from the previous one,
includes the use of the MULTICOMP to enhance
the frequencies below 60Hz. Suitable for the use
with house or dance music in general.
07. T5A/T6A: for the use of the sub-woofer together
with the T5A and T6A loudspeaker system.
08. T5A/T6A HOUSE: derived from the previous one,
includes the use of the MULTICOMP to enhance
the frequencies below 60Hz. Suitable for the use
with house or dance music in general.
09. T4MA: for the use of the sub-woofer together with
the T4MA stage monitor in a drumfill systems (see
T4MA Owner’s Manual).
10. T5MA: for the use of the sub-woofer together with
the T5MA stage monitor in a drumfill systems (see
T5MA Owner’s Manual)
11. 80Hz: this is a generic PRESET with a 24 dB/oct.
80Hz L/R crossover filter, for the use of the sub-
woofer with a generic satellite.
12. 100Hz: similar to the previous one, includes a 24
dB/oct. 100Hz L/R crossover filter.
13. 120Hz: similar to the previous one, includes a 24
dB/oct. 120Hz L/R crossover filter.
14. 140Hz: similar to the previous one, includes a 24
dB/oct. 140Hz L/R crossover filter.
15. 160Hz: similar to the previous one, includes a 24
dB/oct. 160Hz L/R crossover filter.
16. 180Hz: similar to the previous one, includes a 24
dB/oct. 100Hz L/R crossover filter.
8. The protection system
The DPPM module includes a series of digital
algorithms that allows very high level of protection of
the speaker and the amplifier to be achieved (see fig.
2).
- PEAK LIMITER: it is able to avoid with extreme
precision the amplifier’s clipping and, at the same time,
to control the maximum peak power sent to the
loudspeaker. The SIGNAL/LIMIT LED on the module’s
panel lights (RED color) when the LIMITERS are active.
Note: even if the digital LIMITER can work with extreme
precision and efficiency, it’s always advisable to avoid
too high signal levels and to prevent the LIMIT LED to
blink.
- LONG TERM POWER PROTECTION: this protection
acts when the T5SA is used continuously at the
maximum power allowed for the loudspeaker. The
digital processor is able to detect if the loudspeaker is
reaching the maximum temperature allowable for its
voice coil. In this case, the output signal (and,
consequently, the power applied to the speaker) is
slowly reduced in order to take back the system within
safety limits. The power reduction is maintained until the
critical condition remains. As soon as a normal working
condition is restored, the power is gradually taken back
to the nominal level. This protection, which is completely
automatic and doesn’t affect the dynamic performance
of the system, is able to prevent damages to the
speaker when the T5SA is used in extreme conditions.
- LFC (Low Frequency Control): this is a frequency-
dependent compressor able to perform an additional
protection over a limited frequency band where the
woofer is more liable to be damaged by excessive
power.
9. How the PLUGINS work
- MULTICOMP: it’s a compressor with selectable
frequency band. Thanks to the possibility to choose the
frequency band where the compressor is active, the
MULTICOMP is used in some of the PRESETS included
in the T5SA for the system’s dynamic EQ, to obtain
loudness effects or to apply an additional protection on
a defined frequency band.
- NOISE GATE: it’s a dynamic filter able to eliminate
the background noise coming from the devices
connected to the enclosure input. The NOISE GATE
filter is active on all the T5SA’s PRESETS.