Pyramid PB444X Owner's Manual page 5

low level inputs this amp features gold-plated RCA input
jacks for high impedance input. Use these
with car stereo output which uses RCA-type
connector cables.
bass control use this control to adjust the bass output level
to suit your taste or audio program material.
treble control use this control to adjust the treble output level
to suit your taste or audio program material.
input gain control use this control to match the outputs of
your head unit to the amplifier. Starting
with your head unit volume control set at
about the 2 o'clock position, increase the
amp gain control until distortion begins to
occur, and reduce slightly from this point.
power LED this indicator is illuminated when power
is applied.
speaker connections these terminals are 14K gold plated to
guarantee high conductivity and minimum
signal loss.
power fuse the fuse protects the amplifier and your car's
electrical system from short circuit conditions.
protection indicator if the amplifier is incorrectly wired or not
matched to the speaker system, the protection
indicator will come on and the amplifier will
turn off. Disconnect the power wire to reset the
amplifier.
power terminals use these connectors to deliver power, ground,
and remote turn-on control to the amplifier.
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