Time Delay - Kicker KEY180.4 Manual Del Propietário

TIME DELAY: Set to enable (EN) for all speaker's output to reach the driver or microphone location at the
same time. Set to defeat (DF) to turn time delay off.
KICKER EQ: Set to enable (EN) to turn KICKER EQ on (recommended), set to defeat (DF) to turn KICKER
EQ off. When OFF, the frequency response curve will be fl at.
BI-AMP MODE: The majority of systems require this switch to be OFF. Turn ON only if your speakers
are wired in "Bi-Amp" mode (refer to BI-AMP operation picture on page 5). The Bi-Amp mode is to be
specifi cally used without passive crossovers. Possible usages are with component speakers (two woofers
and two tweeters), or with door woofers and dash speakers. Once the Bi-Amp switch is ON, the KEY
amp will automatically detect and apply Bi-Amplifi cation settings during the KEY Auto Setup:
• Woofers and Tweeters: 3.2kHz 24dB/oct High Pass for the tweeters, 3.2 kHz low pass for the
woofers.
• Woofers and Dash Speakers: 320 Hz 24dB/oct High Pass for the dash-speakers, 640 Hz low pass
for the woofers.
COMPRESSION: Set to enable (EN) to turn Auto Compression on, reducing high amplitude signals above
a certain threshold, giving a more consistent listening experience and protecting your audio system. Set to
defeat (DF) to turn Auto Compression off.
FADER: Leave the fader switch to ON if you are running two sets of inputs (front and rear for example) to
the amplifi er. Set the fader switch OFF if you want to drive all channels from a single stereo input.
HI-PASS: Use the HI-PASS switches of the amplifi er to set the internal crossover. Choose a cutoff of
60Hz, 80Hz, 120Hz, or OFF depending on the confi guration of switches.
LIMITER: The LIMITER may engage for multiple reasons, as indicated by the LIMITER LEDs. This is to
protect your speakers and allow for continuous playback. The LIMITER will engage during:
• Engine start: The KEY is a Start-Stop compatible amplifi er; it will not turn off during engine start. When
your vehicle's engine is starting there is a voltage dip in the +12V line. In order to prevent a clipped
output signal from reaching your speakers, the LIMITER engages during that moment. Should you
be listening at a moderate or higher volume level, you may see the LIMITER indicators light up during
engine start and turn off once the engine is running.
• Low voltage: If the operating voltage fed to the amplifi er is below a level specifi ed for full power
operation (+10.8V), you may see the LIMITER indicators light up at moderate or high music volume
levels.
• Input signal overdrive: When the input signal to the amplifi er causes its output to exceed the maximum
rated power, the LIMTER will engage to prevent severe clipping. This can be caused by the gain setting
or the input signal being too high, or both. Reduce the gain or the strength of the input signal.
The LIMITER engages as the amplifi er reaches and surpasses its maximum operational temperature,
limiting the power of the amplifi er as the temperature rises. Consequently, the temperature will take
longer to rise until an equilibrium is achieved in which the temperature won't climb any higher, and the
output power won't be limited any further. This protection does not cutoff the audio abruptly and it does
not output clipped audio to the speakers.
• Compression switch ON: To fully protect your speakers, you may turn the compression switch ON.
This will cause the LIMITER to engage whenever the amplifi er is about to output a clipped audio signal,
though some distortion may still be audible. If the gain is set properly and the audio source doesn't clip,
this will provide another fail-safe for your audio system while limiting the current draw of the amp, which
lowers the load of the amp on the vehicle's electrical system.
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