10
Precautions Introduction Front Panel Rear Panel
Operation and Performance
Figure
9
V peak to Vrms tables
for the FP+Series
The value for VPL are displayed as maximum Voltage
Peak. To translate Voltage Peak into Vrms, you must
divide the Voltage Peak values by 1.41(see table). The
VPL allows you to set the correct maximum output peak
power for optimum performance with the connected
speakers. The correct setting depends on the system type
and the specific load connected to the channel. Since
each channel can be configured to deliver either very high
voltage peak power or high current draw at low-
impendances, it is important to set the VPL correctly.
If you choose a lower VPL setting, you only reduce the
maximum output voltage. At the same time, this allows
more current headroom for low-impedance loads. The
amplifier thus runs at higher efficiency, with a significantly
reduced risk of going into thermal protection.
The Current Peak Limiter(CPL) ensures that the amplifier will not be damaged by forcing the
amplifier to deliver current levels to the outputs that exceed the physical limits of the
transistors. The CPL keeps the amplifier within the Safe Operating Area (SOA).
The CPL is non-adjustable and has different limit values depending on model type.
CPL activity is indicated by illumination of an orange LED for each channel on the front
panel. Warnings also are shown in the DeviceControl software’s GUI.
A steadily illuminated orange CPL LED (with MUTE illuminated indicates a short circuit
situation (or very low-impedance ). The output will mute for 6 seconds before measuring the
output impedance again. This will the output will automatically un-mute. An input signal must
be present to allow detection of short circuit or low-impedance conditions.
NOTE
The problem can be solved by checking input and output cables and examining
the state of the loudspeaker load. If there is no short circuit present, then the
condition may be rectified by lowering the VPL or input levels.
Protection, faults and warnings
The TD-14000 amplifier incorporate a sophisticated and comprehensive set of
protection features. Faults and warnings are indicted on the front panel.
AMPLIFIER
TD
-
14000
TD-14000
V peak
V rms
195
170
140
116
100
80
66
54
138
121
99
82
71
57
47
38
Summary of Contents for TD-14000
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