AudioControl Richter Scale Series III, Руководство для удовольствия владельца

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Owner’s Enjoyment Manual
TM
APPENDIX D -
Bridging your amplifier
One more feature built into the Richter Scale Series Three is
a set of outputs on the crossover that allow you to combine
the channels of a stereo amplifier into a single mono amp.
This concept will work on almost any amplifier not already
equipped with bridged outputs
(i.e. amps without common
speaker output grounds). Check
your amplifier’s owners manual
or get out the handy multim-
eter to verify if the amp meets
these conditions.
In the bridged mode, each channel of the amplifier sees
half of the load impedance (i.e. 2 ohms versus 4 ohms). The
amp outputs one channel in-phase with the system and the
other channel 180 degrees out of phase. This allows one
channel to provide the positive half of the signal and the
other channel to provide the negative. The voltages are
summed at the subwoofer for a theatrical fourfold increase
in power, as demonstrated by the following calculations:
The formula for output power of an amplifier (single
channel) is:
(Peak Voltage x 0.707) 2 ÷ Load Impedance (Ohms) = Output
Power (Watts)
For a normal amplifier (rated at 25 watts per channel)
driving a nominal 4 ohm load, the output power is:
(14 volts x 0.707)2÷4 Ohms) = 24.49 Watts
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