EVC Variable-Intensity Loudspeakers
Electrical connection | en
17
Electro-Voice
Installation manual
2019-10 | 04 | F.01U.378.116
Figure
6.1: EVC Variable-Intensity Loudspeaker rear panel
To
connect the loudspeaker to the power source
, do the following:
1.
Connect the
(-) input line to the COM input terminal
.
2.
Connect the
(+) input line to the terminal corresponding to the desired wattage
in
either the 70.7 V or 100 V column.
If connecting more than one speaker, each group of four terminals is electrically connected in
parallel to the directly adjacent group of four terminals. The wattages charted in these two
columns represent the wattage available from each of the three transformer taps at the
designated voltage.
The gland nut on the wiring cover is designed for cable jacket diameters of 6 mm to 12 mm in
diameter. Only use wiring with a jacket diameter within this range.
Notice!
Wiring installation must be performed by a skilled technician.
Optional speaker processing
Once an EVC loudspeaker is installed in a venue, a digital signal processor (DSP) will typically
be used to adjust the in-room frequency response. In addition, the DSP should be used to
provide the high-pass filters recommended to protect the EVC-1122-VITEN54 from overdrive at
frequencies below its operating range. Failure to do so could damage the low-frequency driver
if the system is subjected to high-level signals below its operating range. The recommended
high-pass filter frequencies for infrasonic protection of the EVC-1122-VITEN54 is:
Model
Recommended high-pass frequency (minimum)
EVC-1122-
VITEN54
50 Hz, 4
th
-order high-pass (24dB/octave)
Tab.
6.3:
Recommended high-pass filter frequencies for infrasonic protection of EVC-1122-VITEN54 systems
The recommended high-pass filter can be implemented in a stand-alone DSP loudspeaker
controller or in the processing section of a DSP-enabled amplifier. L Series and C Series
amplifiers from Dynacord are recommended for use with EVC loudspeakers because they can
also implement model-specific processing that optimizes loudspeaker performance. EVC
loudspeaker settings can also be implemented in any IRIS-Net compatible digital signal
processor.
Notice!
Preset EVC1122-VI(FR)FIR v1.0.SPS is available for download from www.electrovoice.com
and is approved for use in EN54 installations.
