6
Quick Start Guide
12. AccuBASS®
Enables/Disable
– Turns the AccuBASS® circuit on or off . The
renowned AccuBASS® will work wonders on the lower bass of the
speaker outputs.
AccuBASS® Threshold
– Selects the level at which the AccuBASS®
will begin to work.
AccuBASS® Level
– Adjusts the level of the AccuBASS®.
13. Crossover Frequency
– Since component speakers (like woofers)
are designed to reproduce certain frequency ranges, a crossover
allows you to match the speaker to the appropriate frequency
range. Most manufactures list a recommended crossover fre-
quency as part of the speaker specifications. Choosing the correct
crossover point will provide increased speaker reliability and
optimum sound quality. The LC-1.1500 amplifier comes with an
adjustable-frequency 24/dB Octave Linkwitz-Riley crossover. Ad-
just the crossover frequency on the LC-1.1500 amplifier to match
the value specified by your subwoofer’s manufacturer. If you do
not know this value, start out with the crossover selector turned
all the way to the left (counter clockwise) and adjust it until you
find a position that suits your subwoofer system best.
14. Gain Control
– This control allows you to adjust the overall
volume output level in the normal way, with counterclockwise
decreasing the volume, and clockwise increasing. Note that if
you have fitted the optional ACR-1 gain control, it should first
be set to maximum, before setting this gain control. The setting
procedure is given on the next page, and involves nerves of steel,
a steady hand, grit, determination, and the thought that you are
making the world a better place for deep bass.
15. Polarity
– This switch allows you to select the polarity of the sub-
woofer, either 0 degrees (in-phase) or 180 degrees (out of phase).
16. Source Clip LED
– The LC-1.1500 amplifier features our MILC™
(Maximum Input Level Control) patent-pending level-setting cir-
cuit that prevents clipping and damaging distortion. It calculates
when the waveform of an incoming audio signal is clipping, and if
it is, this LED will fulfill its prime objective and shine forth.
With this advanced feature, you are able to optimize the level of
the incoming audio signal until the Source Clip LED is just-prior
to lighting. If the LED comes on during normal operation, you
should adjust the level of the audio signals before they reach the
LC-1.1500.
17. Gain Maximized LED
– This LED indicates when the LC-1.1500
amplifier gain has been maximized for optimum performance.
