Orion Car Audio HCCA-D1200 - Manual (Page 8)

7
© 2005 Directed Electronics, all rights reserved
AMPLIFIER SETTINGS
Signal Input and Output Configurations
The input section of the amplifier consists of a phase switch that sets the output configura-
tion, infrasonic switch, gain controls, high pass and low pass crossovers controls, Intelli-Q
control, and RCA inputs. The input section makes it easy to adapt this amplifier to most sys-
tem configurations.
Input Gain
These Orion amplifiers have level adjustments to allow for easy integration with any source
unit. The input sensitivity can be adjusted from 150mV to 5V. Refer to Testing the System
and Adjusting the Sound of the System sections of this guide for detailed instructions on
setting the gain.
Phase Switches
● 0° - leaves output unaffected. The output signal is in phase with the input signal.
● 180° - inverts the output. The channel is 180° output of phase. This configuration
is useful for inverting the phase of subwoofers to improve staging in a vehicle.
This is also used when bridging two amplifiers into one speaker.
Line Output Configurations (System Expansion)
NOTE: When expanding your system by adding additional Orion amplifiers in the signal
chain use only the same model(s) as the first amplier in the chain.
The line outputs on Orion amplifiers offer easy, unlimited system expansion. Routing signal
from a source unit, pre-amplifier, or equalizer is a matter of connecting RCAs to the RCA
Inputs of the first Orion amplifier and then the RCA line outputs to the next Orion amplifi-
er’s RCA line inputs in the signal chain. Then the Master/Slave switch on each of the amplif-
ers is set as follows:
The first amplifier in the signal chain will have its Master/Slave switch set to the MASTER
position. In effect this first amplifier will set the gain for the remainder of the amplifiers in
the signal chain.
The remaining amplifiers following in the signal chain will have their Master/Slave switch
set to the SLAVE position. This allows the signal to be input directly, bypassing the subse-
quent amplifiers gain control. The audio level is set and supplied by the output of the mas-
ter amplifier at its gain setting.
Internal Crossover Configurations
The crossover section of the Orion HCCA-D1200, HCCA-D2400, and HCCA-D5000 amplifiers
is continuously variable and extremely flexible. In addition to the variable built-in low-pass
filters, the high-pass crossover incorporates the INTELLi Q feature. This circuit is designed to
optimize the performance of Orion subwoofers in all types of enclosures.
When using Orion loudspeakers, minor deviations from the recommended frequency
ranges can provide superior results depending on your speaker locations and your vehicle
acoustics. Setting crossover frequencies higher than recommended will not cause damage
and may provide superior sonic results depending on your system's performance goals.
Refer to your loudspeaker owner's manual for assistance in choosing the proper crossover
frequencies for your system.