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DESIGN FEATURES
A. Power Fuse: If the Fuse should blow, never replace with one of greater value than the original
B. Power Connector terminals: Connects Power, Ground, and Remote.
D. RCA Input Jacks - Line Level from Radio Pre-outs: The industry standard RCA jack
provides an easy connection for signal level input. They are platinum to resist the signal
degradation caused by corrosion.
E. Level Control: This can be adjusted to match output levels from a variety of source units.
F. Crossover Filter Switch: HPF for High Pass - Mid-Tweeter.
Flat for All Pass - Full Range.
LPF for Low Pass - Subs.
G. Adjustable Crossover Frequency Control: 50-500Hz or 500Hz – 5KHz @ 12dB/octave for 2
and 4 channel models. 50-250Hz Low Pass only on Model EC 1200.1 D Mono Block.
H. Remote Level Control: (EC 1200.1D Only) Gain set on the amplifier by up to -12dB
I. Speaker Connections: Follow correct polarity, and do not Ground any speaker wires. Do not
connect any speaker wires together.
J. Pass Thru Outputs: The Pass-Thru provides a convenient source for daisy-chaining an
additional amplifier without running an extra set of RCA cables from the front of the vehicle to
the rear amplifier location.
K. Subsonic Control: (EC 1200.1D Only) A variable 15-40Hz high pass filter designed to prevent
frequencies below the audio range from being applied to the subwoofer from the amplifier.
Improving subwoofer performance and power handling.
L. Master/Slave: (EC 1200.1 D Only) Set the amplifier to master or slave when strapping.
M. SLV IN: (EC 1200.1 D Only) When strapping, this is the slaved amplifier input from the master
amplifier.
N. MAS OUT: (EC 1200.1 D Only) When strapping, this is the master amplifier output to the
slave amplifier.
O. Crossover Mulitplier Range Switch: This is used to set the multiplier for the crossover
frequencies between x 1 and x 10. The setting x 1 leaves the adjustable crossover frequency
from 50Hz to 500 H, while 500 Hz to 5KHz in the setting x 10.
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