General Description; Dyna-Tech Tm Driver Protection System - Community VERIS 2 Operation Manual

Versatile installation systems
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GENERAL DESCRIPTION

VERIS 2 Series loudspeakers are designed for demanding day-to-day use in a wide range of
fixed installations. Their high quality driver components are housed in rugged, acoustically
inert enclosures equipped with rigging fittings. VERIS 2 systems are characterized by a high-
power, low distortion linear response that provides exceptional musicality and speech
intelligibility.
The VERIS 2 line consists of the 11 models briefly described below:
V2-6 - a 6.5" / 1" two-way in a trapezoidal enclosure with rotatable HF horn.
V2-8 - an 8" / 1" two-way in a trapezoidal enclosure with rotatable HF horn.
V2-26 - a dual 6" / 1" two-way in a trapezoidal enclosure with rotatable HF horn.
V2-28 – a dual 8" / 1" two-way in a trapezoidal enclosure with rotatable HF horn.
V2-12 – a 12" / 1" two-way in a trapezoidal enclosure with a choice of 60° x 40°
or 90° x 60° horn patterns.
V2-15 – a 15" / 1" two-way in a trapezoidal enclosure with a choice of 60º x 40º
or 90º x 60º horn patterns.
V2-32 – a 12" / 6.5" / 1" three-way in a trapezoidal enclosure with a choice of
60º x 40º or 90º x 40º horn patterns. Horn is rotatable.
V2-35 - a 15" / 6.5" / 1" three-way in a trapezoidal enclosure with a choice of
60º x 40º or 90º x 40º horn patterns. Horn is rotatable.
V2-210S - a dual 10" subwoofer in a rectangular enclosure.
V2-212S - a dual 12" subwoofer in a rectangular enclosure.
V2-215S - a dual 15" subwoofer in a rectangular enclosure (NEW!).
Note: the specification tables on pages 9 and 10 depict the dimensions, weights, and detailed
performance specifications of the eleven VERIS 2 models described above.
VERIS 2 loudspeakers may be used in multiples, forming clusters and arrays. Systems may
be designed around horizontal splayed arrays, vertical splayed arrays, as well as exploded
clusters and distributed configurations. Rigging kits are available from the factory as standard
items.
TM
DYNA-TECH
All VERIS 2 Series loudspeakers employ Community's advanced technology DYNA-TECH driver
protection system. Functioning as a multi-stage limiter, DYNA-TECH circuitry provides precise
and repeatable protection by reducing excessive power to the drivers under abusive
conditions.
The first stage of limiting is designed to protect against short-term excess power applied to
the high-frequency driver(s) in the system. This circuit utilizes an HPCCR (High Positive
Current Coefficient Resistor) in series with the driver(s). The HPCCR increases resistance as
the current flowing through it increases. As its resistance rises above nominal, the heating of
the element provides RMS conversion. The result is an RMS limiter with a ratio that varies
according to the demands of the program material.
The second stage of limiting protects against excessive power levels to all drivers in the
system. This stage is based on an electro-mechanical relay driven through a voltage sensing
circuit. The relay engages at a pre-determined voltage, corresponding to a power level that
would otherwise cause driver damage. When engaged, the relay introduces a bank of high-
wattage resistors in series with the drivers. These resistors cause a voltage drop to the
drivers, thereby reducing the power applied to them. A red LED on the rear panel indicates
that this protection circuit has been engaged.
When the relay protection circuit is activated, there will be a noticeable drop in the system's
level (approximately 3 to 4 dB). The red LED, as well as the drop in level, serves as a warning
to the operator that the loudspeaker is being overdriven. When this stage of protection is
engaged, the level of the console and/or the amplifier's output to the system should
be reduced.
DRIVER PROTECTION SYSTEM
VERIS 2 – Operation Manual - Page 13

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