6
ENGLISH
RCF S.P.A. THANKS YOU FOR PURCHASING THIS PRODUCT, WHICH HAS BEEN
DESIGNED TO GUARANTEE RELIABILITY AND HIGH PERFORMANCES.
DESCRIPTION
VSA
II
series is made of multi-amplified vertical steerable arrays that represent one of the
latest RCF applications in terms of digital audio technology.
The 3 available models have similar features, but:
-
VSA 2050
II
is the top model and includes 20 amplifiers and 20 full-range 3.5”
R
CF
transducers, its vertical dispersion is controlled up to 10° from 150 Hz and up.
-
VSA 1250
II
includes 12 amplifiers and 12 full-range 3.5” RCF transducers, its
vertical
dispersion is controlled up to 10° from 300 Hz and up.
-
VSA 850
II
includes 8 amplifiers and 8 full-range 3.5” RCF transducers, its
vertical
dispersion is controlled up to 10° from 500 Hz and up.
The internal digital signal processor processes the audio signal sent to each single internal
transducer in order to control the overall vertical acoustic dispersion.
VSA
II
series speakers are the ideal for indoor installations, where a critical acoustic
environment can be an issue and a moderate visual impact is required, for instance:
houses of worship, airports, railway stations, auditoriums, congress halls, sport halls,
shopping malls, etc. .
Unlike traditional sound columns, VSA speaker calibration is carried out electronically via
either RdNet software or its VSA SMART RC remote control for smartphones (to be purchased
separately and necessary, as it also includes the USB / RS 485 cable adapter with RJ45 connector
for linking to a computer), by specifying the installation height above the floor and the listening
area (or the maximum distance from speakers to audience).
The signal is fully processed and amplified in the digital domain, thanks also to 6 FPGAs (‘Field
Programmable Gate Array’) that manage all the data inside the speaker system.
The circuitry is modular to get maximum reliability and easy servicing.
VSA
II
speakers include 2 independent power supply units, controlled by a microprocessor
for either AC (230 / 115 V) or DC (24 V) operation, to get full back-up facility when the
product is intended for emergency purposes.
Each internal circuit is monitored (voltage, current and temperature).
VSA
II
series speakers meet all requirements needed by sound systems for emergency purposes.
One of the most important feature of the VSA digital arrays is their simple configuration, thanks
to RdNet software or its VSA SMART RC remote control for smartphones.
In a few steps, it is possible to tilt down and shape the acoustic beam in a virtual way, while the
column speaker is installed in a physical vertical position.
This configurability permits to address the audio signal exactly to the listening area, avoiding to
send acoustic energy to ceilings and empty floors, thus not introducing additional bad reflections
that would affect speech intelligibility, mainly in critical environments with high reverberation
time.
20 ‘class D’ amplifiers (50 W each, with high capacity power supply) for the VSA 2050
II
model,
12 for VSA 1250
II
and 8 for VSA 850
II
, assure the best possible control and dynamics.
Each cabinet has four LEDs (AC, DC, FAULT and PRIORITY) and provides dry contacts (of an
internal relay) for remote ‘fault’ indication.
Thanks to a sophisticated algorithm developed by RCF, the focus control is not strictly necessary
as the best possible result is guaranteed overall the covered listening areas.
It is possible to set the acoustical coverage (tilt and beam) according to installation height and
the listening area to be served.
