Owner's Manual

FERTURES RND BENEFITS
DC Offset Protection
This circuit protects the output of the amplifier against DC voltage. If for some reason DC
voltage is detected at the output stage, the amplifier will shut down protecting the
speakers from
direct current.
Short Circuit Protection
The circuit protects the amplifier from damage due to a short found in the speakers or
wiring. If
one of the speakers or its wiring comes in contact with ground, the amplifier will
shut
down. To resume normal operation, correct the problem and turn the head unit off.
then
back on. The amplifier will reset and play again.
Thermal Protection
To protect the amplifier circuitry against damage caused by prolonged exposure to high
temperatures, a thermal protection circuit is activated if the amplifier reaches
excessively
high operating temperature. Once the thermal circuit is activated, the
amplifier will shut
down to cool off. The amplifier will automatically turn back on once it
cools down to a safe operating temperature.
Tri ModeCapable (El.R265, ELR2100, & ELR2150)
If so desired, the amplifier may be run in stereo and mono at the same time. For example,
this feature would allow you to run a pair of mid and tweeters in stereo and a sub-woofer
mono (See Page 13).
Built-in Crossover
The "ELFI"amplifiers include a built-in variable """high and low pass crossovers. The
crossover features a variable frequency selection (50Hz"" 250Hz) for precise high or low
pass filtering. **Except ELFl1190, 1300, 1500 & 1800 which have a 50 "" 250Hz low pass filter.
Bass Boost
For added low frequency performance the amplifiers are equipped with switchable 6 or
12dB bass boost @ 45Hz.
Line out
One set of full range line outputs have been provided for convenient connection to
additional amplifiers in the system. (Fill models except ELFl465 & ELFl2150)
4
ELR RMPLIFIERS