Lanzar OPTIHC5002 - Manual (Page 5)

4.Power & Protection Indicators- Provide instant information on status of amplifier,
including short-circuit and thermal overload alerts.
1. Input RCA Jacks - These inputs are for signal cables from the source.
Always use high quality shielded RCA cables.
2.Level Control- Enables the matching of input levels to the output levels from
the head unit(or other signal source).
3.Crossover Mode Selector- Determines the mode of built-in crossover:
low pass(permits only low frequency signals to pass to speakers), high pass(permits only high
frequency signals to pass to speakers),or flat.
OPTI OWNER'S MANUAL-3