The RCA connections are gold plated for optimum performance and low signal loss.
The RCA connectors are labeled CH1 (front left), CH2 (front right) [for XN3410:
CH3 (rear left), and CH4 (rear right)]. In applications where RCA signals are not
present, the speaker level output from the head unit can be used. (Use one or the
other input, not both.)
• Gain Controls: For the XN3410, separate CH1/2 and CH3/4 gain controls
allow you to set the nominal operating level of the amplifier. The amplifier's input
range, 200mV to 6.0V for RCA inputs and 500mV to 13V for speaker level inputs,
can accommodate input levels from virtually any head unit.
• Bass Boost: The amplifier features a "high-Q" (i.e. narrow frequency band)
Bass Boost circuit. It acts much like an equalizer with an adjustable gain from 0 to
+15dB fixed at 45Hz. Use this feature to tune low-frequency audio response to
compensate for a less than ideal subwoofer enclosure design. The added boost
produces rich, full bass tones that are normally difficult to reproduce in the marine
audio environment.
NOTE: Bass Boost setting should only be used for subwoofer applications.
• Source Select (XN3410 only)
2CH BASS: Uses CH1/2 inputs and has output from all 4 channels with Bass
Boost.
2CH: Uses CH1/2 inputs and has output from all 4 channels. The Bass Boost
will work only on CH1/2 and have no effect on CH3/4.
4CH: Uses all 4 channel inputs and has output from all 4 channels. The Bass
Boost will work only on CH1/2 and have no effect on CH3/4.
XN3210
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