Class D Amplifier Design: The Kicker IX500.4 is a full-range
Class D amplifier, which uses digital switching to amplify audio signals. This
design results in high efficiency and minimal heat output. The Class D design also
allows the IX500.4 to have a very small footprint for ease of installation.
CEA 2006 Compliant: The Kicker IX500.4's power and signal to
noise ratio are measured according to CEA 2006 standards (Consumer Electronics
Association). These standards allow you to accurately compare the specifications
of all CEA 2006-compliant amplifiers, even if they are different brands. Manufacturers
who adhere to the standards can display the CEA 2006 logo on their products and
packaging. The amplifier can handle impedance loads down to 2 ohms in stereo, 4
ohms bridged. The rated power output is 75 watts RMS x 4 channels into 4Ω
(20 Hz-20 kHz, <1% THD+N), 125 watts RMS x 4 channels into 2Ω (20
Hz-20 kHz, <1% THD+N), and 250 watts RMS x 2 channels into 4Ω (20
Hz-20 kHz, <1% THD+N). While the CEA 2006 S/N is 85 dB (measured at 1
watt), the S/N at rated power is 98 dB.
Kicker Livin' Loud Certified Power Certificate: The amplifier
comes with a certificate indicating the total RMS power output of the particular
amplifier, along with the model number, serial number, tested date, and whether
the amplifier passed the total harmonic distortion, signal-to-noise ratio, and
protection circuit tests.
Crossover: The front and rear amplifier channels have
independent crossover settings. The internal crossovers can be set for low-pass,
high-pass, or full-range operation. The variable low-pass and/or high-pass
crossover points can be set between 50 and 200 Hz; the crossover slope is 12 dB
KICKEQ Bass Boost: The front and rear amplifier channels
have independent bass boost settings. The bass boost circuits provide a variable
(0-18 dB) signal boost at 40 Hz.
Fader: When powering four speakers and using both the front
and rear inputs, turn the fader switch On to maintain front/rear fader control.
Auto Turn-On: The Auto Turn-On switch offers three options:
- +12 V: The amp turns on when +12 volts
is applied to the remote terminal.
- DC Offset: The amp turns on when a 6 volt
signal is detected on the RCA inputs (from a speaker-level
source); in this mode the amp's remote terminal acts as a +12
volt output to turn on another component.
- Audio: The amp turns on when an incoming
audio signal is detected; in this mode the amp's remote terminal
acts as a +12 volt output to turn on another component.
Fail-Safe Integration Technology (FIT): To accommodate the
varying range of signal levels coming from today's factory and aftermarket radios,
the IX500.4 utilizes Fail-Safe Integration Technology (FIT), offering significant
noise reduction and compatibility with virtually any factory radio. There is a
switchable input level control; when set to Low level, the amp can accommodate
an input signal of 125mV-5V, at High level, the amp will accept 250mV-10V signals.
Gain Control: The front and rear sections of the amp have
independent input gain controls. With the Input Level Control switch at the
appropriate setting, you can set the rotary Gain Control to match the output of
the source unit. The Gain Controls are adjusted with a flat-head screwdriver, and can
be set between 0 and 11.
Protection Circuitry: The IX500.4 has protection circuitry
that will turn the amp off in the event of overheating, over voltage (power
input), under voltage (power input), short circuit (speaker output),
and over current (speaker output). If the Protection LED on the front
side of the amp illuminates red, the protection circuit has engaged and the amp
will not play until the problem is resolved.
Stackable: The optional Kicker IXSM stacking mount (item number206IXSM,
sold separately) allows you to stack two Kicker IX-series amplifiers on top of one
Power Connections: The power and
ground connections are set-screw terminals that will accommodate up to 4-gauge
wire. The remote turn-on set-screw terminal will accept up to 8-gauge wire. The
included 3mm Allen wrench is required to tighten/loosen the terminals.
Note: Kicker recommends the power and
ground cables be 4 gauge minimum and an external 50 amp fuse
is required to protect the amp. The recommended accessory
list for the IX500.4 includes wiring kits with 4 gauge wire
and 100 or 150 amp fuses; that original fuse should be
replaced with a 50-amp fuse.
Speaker Outputs: The IX500.4 is equipped with four pair of
set-screw speaker terminals that will accommodate up to 8-gauge wire. The supplied
3mm Allen wrench is required to tighten/loosen the terminals.
RCA Input Connectors: The amplifier is equipped
with two pair of RCA inputs, which can be used for line level or speaker
level input signals. If the source device doesn't have preamp level
outputs, the KISL speaker wire to RCA adapter (item number206KISL,
sold separately) is needed and the Input Level switch should be set to High.
Line Level Output: The amplifier has a pair of RCA line level
outputs for feeding a signal to another amplifier. It is the same signal that is
input through the line inputs. The amplifier's crossovers have no effect on the
line level output signal, however, if the input signal is crossed over at the
source unit, the filtered signal will be passed on to the second amplifier. The
line output is available when using either line level or speaker level inputs.