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4. Input – The amplifier’s signal input RCA jacks should be con-
nected to the source unit’s signal outputs with high-quality
braided or double-shielded interconnecting RCA cables.
Note: Be sure to route the Series 1 signal input cable away from
the main power wire and the car’s wiring harnesses to avoid
noise coupling.
If the source unit does not utilize RCA cables, connect the left and
right positive speaker output wires from the source unit to the
amplifier’s High Level Speaker Input Connector. The center pin is
then connected to the chassis of the source unit.
5. Speakers – Series 1 amplifiers are rated for safe operation into
loads of 2Ω or greater in stereo mode, or 4Ω in bridged/mono
configurations. The primary loads on any amplifier come from
directly connected speakers without using capacitors. The mea-
sured resistance for each side should not be less than 2Ω stereo or
4Ω bridged/mono.
6. Bridged/Mono Configuration – The Series 1 amplifiers are ca-
pable of bridged/mono configurations.
This configuration enables you to:
• Run a single woofer with stereo satellites
• Run two bridged amplifiers as a high power stereo system
• Run one amplifier with a bridged/mono woofer and another
as a high-frequency stereo amp, etc.
Note: The 4600x allows the above 3 configurations all in one.
For more information refer to the wiring diagrams beginning on
page 14.
Note: To bridge the amplifier, use the L+ and R– speaker
connectors.
CAUTION! Series 1 amplifiers are not recommended for imped-
ance loads below 2Ω stereo or 4Ω bridged/mono.
Be sure to observe proper speaker terminal polarity throughout
the system. It is critical for the Series 1 to use the correct negative
terminal for right and left channels, since the RIGHT NEGATIVE
(-) TERMINAL is the “hot” terminal for the right speaker. DO
NOT chassis ground any of the speaker leads as unstable opera-
tion may result.