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Features
Inputs and Outputs Notes
Warranty Note
Features
1-ohm Stable:
When the KAC-X812D sees a 1-ohm load, the amp puts out 1000 watts RMS.
LED Status Display: The
top-mounted LED display can be adjusted to show any of the following
information:
- Voltage: indicates the
source voltage
- Current: indicates the
current consumption
- Temperature: indicates the
internal temperature
- Fan: indicates the
rotation speed of the cooling fan in 3 steps: Fast, Slow, or Off
Amplifier Management System (A.M.S.):
A.M.S. is an extremely sophisticated system that provides extensive control over
an amplifier's bass EQ, bass extension and volume offset. It also allows you to
monitor key amp performance criteria (source voltage, current consumption,
internal temperature, fan speed, protection status). In addition to being able
to change EQ settings and monitor amp performance at the amp itself, connect one
of these amps to a compatible Kenwood Excelon in-dash receiver, and the advanced
2-way communication system lets you adjust the amplifier EQ and monitor amp
performance of up to 8 amps right from the in-dash receiver. The receiver's
display shows all of the EQ settings and performance criteria. A 13-pin DIN
cable (sold separately) is required to connect the amplifier to a Kenwood head
unit equipped with A.M.S. controls; item 469KNWDIN can be
used to make the connection between the amplifier and an A.M.S. compatible
headunit. The Amplifier Management System lets you adjust the following
settings:
- Bass Center Frequency:
allows you to choose 60 Hz, 80 Hz, 100 Hz, or 200 Hz
- Bass Level: can be
adjusted from -15 to +15 dB
- Bass Q Factor: allows you
to choose Q1.00, Q1.25, Q1.50, or Q2.00
- Bass Extend: can be turned
On or Off. When turned On, the low frequency response is extended by 20%.
- Volume Offset: can be
adjusted from -20 to 0 dB
- Temperature: allows you to
choose Fahrenheit or Centigrade
- Amp: displays the amp's ID
number that you have selected by using the ID Number switch
Low-pass
Filter: The internal low-pass filter can be adjusted from 50 to 200 Hz, and
has a slope of 24 dB per octave.
Infrasonic Filter: The
infrasonic filter allows the amplifier to block ultra-low frequencies that your
subs can't reproduce, improving the efficiency of your speaker system. The
filter can be set to 15 Hz or 25 Hz, and has a slope of 24 dB per octave.
Band Reject Filter: This filter
rejects and eliminates a selected band of frequencies, allowing you to reduce
resonance inside the vehicle compartment and standing waves. Using the B.R.F.
Frequency control, the band reject filter center frequency can be adjusted from
40 to 200 Hz. Once the center frequency is chosen, you can select the range of
affected frequencies by choosing -6 dB (wider band) or -12 dB (more narrow
band), using the B.R.F. Switch.
Preamp Outputs: The
preamp output jacks provide a convenient source for daisy-chaining an additional
amplifier without running an extra set of RCA cables from the front of the
vehicle to the amplifier location. These outputs provide a full-range signal.
Quiet Turn-on: This feature
allows the amplifier to power up over a period of several milliseconds instead
of instantaneously, protecting your speakers from thumps and other sounds that
could be damaging.
Protection Circuitry: To keep
the amplifier safely operating, the protection circuitry is triggered in the
following situations:
- When the internal temperature is
too high for the unit to operate
- When the unit malfunctions and a
DC signal is sent to the speaker output
- When a speaker wire may be
shorted
- When a speaker output contacts
ground
- When the voltage is outside of
the operating range
Inputs and Outputs
Notes
Front Panel of Amplifier:
- BATT. (power): 0.556"
screw terminal
- GND (ground): 0.556" screw
terminal
- P.CON (remote turn-on):
0.343" screw terminal
- Speakers: 0.343" screw
terminals
- To H/U: round 13-pin jack
that lets you connect a Kenwood Excelon in-dash receiver that is compatible
with the Amplifier Management System - A 13-pin DIN cable (sold separately)
is required to connect the amplifier to a Kenwood head unit equipped with
A.M.S. controls; item 469KNWDIN can be used to make the connection between
the amplifier and an A.M.S. compatible headunit.
- Remote: 2 S-video jacks
that allow you to daisy-chain additional Kenwood Excelon amplifiers that are
compatible with the Amplifier Management System
Warranty Note
Warranty Note: This amplifier
comes with a 1 year warranty card, but the actual warranty is 2 years.
