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“ARVA” - AUTOMATIC RAIL VOLTAGE ADJUSTMENT CIRCUITRY:
AMPLIFIER MODE SWITCH
BATTERY VOLTAGE:
INDUCTION AND TUNNEL FAN COOLING:
PROTECTION CIRCUITRY:
Cadence RS amplifiers feature "ARVA" circuitry in their power supply. This circuit constantly
monitors the output stage and under high current demands will adjust the power supply rail
voltages so that enough power is available for peak situations. The "ARVA" also improves the
damping factor of the amplifier when playing low impedance mono loads. Cadence Type RS
amplifiers have tighter sounding bass reproduction thanks to this unique circuitry.
Cadence RS amplifiers are rated and regulated to 13.8 volts and below. Increasing voltage to
14.4 volts will increase the power output of the amplifier in the same proportion. Maximum
input voltage is 16 volts while the minimum voltage is 12 volts.
Due to the extreme high power capabilities of these amplifiers, they feature a built-in
induction fan cooling system. The amplifiers draw in cool air through the nosepiece side
vents, for circulation across the circuitry. The main heatsink for the amplifier and power supply
sections is a CAD designed forced cooled tunnel that runs the length of the amplifiers. A fan at
each end, one pulling air in, and the other forcing air out, ensure that the power electronics
stay cool for continued, clean operation. It is important not to block either the input or exhaust
ports. Some of our competitors are more interested in making a quick buck and will purposely
leave the fan out of their amps and then charge you a hefty sum to buy and add the fan on
later. At Cadence, if we feel that our amplifiers will work better with a fan then we install it at the
factory and don't make it an expensive add on option.
Cadence amplifiers incorporate many outstanding protection circuits to help protect the
amplifier from being damaged during operating conditions.
If you live in a hot climate we suggest installing additional cooling fans in your trunk to exhaust
the hot air which can build up in the trunk this will help keep the ambient temperature in the
trunk as low as possible so that your amps work flawlessly and without any musical
interruption.
Clipping or total shutdown may also be a result of a bad ground connection or loose ground. If
you find that your speakers and speaker wires are not shorted, please check your ground
connection.
Thermal Protection: When the amplifier reaches an unsafe operating temperature of 80
degrees Celsius the amplifier will turn off. Once the amplifier cools down, simply reset the
amplifier by its Remote connection, (turn the amplifier off and then on again once you have
given the amplifier a chance to cool down) and the amp will once again begin to play.
Speaker Short Circuit Protection: Should your speakers short circuit due to voice coil burn
out, or should the amplifier sense an impedance too low to handle, the Protection LED will
light, indicating a diagnostic condition. Turn off your system, disconnect one speaker at a time
and try to determine which speaker might be faulty. Correct the condition and restart the
amplifier. You must reset the amplifier by turning off and then on by the Remote power for
proper operation after correcting a diagnostic condition.
Input Overload Protection: This circuit will either shutdown the amplifier completely or
make the amplifier spurt on and off indicating that it is in a diagnostic condition. Turn the
system off and reduce the gain on the amplifier or volume from your head unit, this should
result in a corrected condition.
DC Offset Protection: Should any DC voltage try to enter the amplifier via the speaker
terminals it will cause the amplifier to shut down and not operate until this condition is
remedied. This circuit will also protect damaging high DC voltages from reaching your
speakers should your amplifier ever miss-function.
This switch enables you to slave multiple RS amplifiers off one master. Input signal will be
connected to the master in a system, and then a PM2 bridging cable can be used to connect
the master out to the slave in of a second amplifier, and in multiple amplifier systems, this
amplifier’s master output can be connected to a third amplifier’s slave input, thus allowing the
daisy chaining of an almost unlimited number of amplifiers from one signal source. In
addition, a single Competition Podium Remote control (CPR) can optionally be connected to
the master amplifier, in order to control all the slave amplifiers connected to it. Note that when
an amplifier is set in the SLAVE mode, its level control, phase shift, subsonic filter, bass EQ,
low pass filter, as well as remote control function will be totally bypassed, as these functions
will be controlled by the master amplifier to ensure perfect level and spectral matching
between all amplifiers.
Boom
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