Advertisement
Available languages
Available languages
High-pass/Low-pass Filter Controls
Frequency (Hz) Selection Control
The crossover frequency is fully adjustable between 55Hz and 5500Hz (via the Crossover
Frequency Multiplier) for a wide range of crossover points. Use this feature, along with
your speaker manufacturer's recommended crossover frequencies, to quickly design a
more advanced system (see Applications on page 4) NOTE: If the X-Over Mode Switch
is set to OFF, varying the Freq (Hz) Control will produce no effect.
Crossover Frequency Multiplier Switch
When engaged, this switch increases the crossover frequency by a factor of 10. Example:
If the Freq (Hz) dial is set for 240 Hz, pushing in the Multiplier Switch changes the setting
to 2400 Hz.
X-Over Mode Switch
This switch is equipped with a 12dB per octave electronic filter for precise frequency
attenuation with minimal phase distortion. The steep crossover slope keeps midrange
tones out of the subwoofer and thereby eliminates an unnatural "nasal" tone quality in the
audio system. A filter is activated by sliding the X-Over Mode Switch to either LP or HP.
Input Mode Switch
This switch allows you to set the input mode. Stereo input allows full left and right stereo
operation. Right (bridged) input allows single channel input for bridged operation. This is
especially useful in high-powered systems when using one marine amplifier for each
subwoofer/speaker. L + R (sum mono) allows a stereo input to be summed into a mono
output.
Speaker Level Inputs
These provide connections for a high-level stereo source. In addition, these connections
are provided for installations when the source unit's RCA outputs are unavailable.
WARNING: When using the speaker (high-level) inputs, the Black wire must be grounded
at the Radio. Failure to do this will result in noise and improper operation.
The rear panel of the APMR-2002 contains power and speaker connections as shown
below.
Figure 2
1. CH1 Speaker Output
2. CH2 Speaker Output
3. Ground
1
2
- 2 -
3
4
5
6
4. Remote Turn-on
5. Battery
6. 35 Amp Fuse
English
Advertisement
