CEA-2006 Compliant: CEA-2006 is a new system of testing and
measurement methods for mobile audio amplifiers. This voluntary standard
advocates a uniform method for determining an amplifier's RMS power output and
signal-to-noise ratio. The criteria for measuring power uses a DC input voltage
of 14.4 volts and the RMS power output is measured into a 4-ohm load, with 1% or
less Total Harmonic Distortion (THD) plus noise, and at a frequency range of 20
Hz to 20,000 Hz when applicable. Signal-to-Noise ratio is measured in weighted
absolute decibels (dBA) at a reference of 1 watt into 4 ohms. CEA-2006 allows
consumers to compare car amplifiers and receivers on an equal basis. The Polk
Audio PA400.1 under CEA-2006 regulations is rated at 200 Watts RMS x
1 channel with a 60dBA signal to noise ratio.
Mono-Power Amp Design: The Polk Audio PA400.1 is designed
with specific features to power your subwoofers with a frequency range between
20-250 Hz. This amplifier is not designed to power a full-range speaker.
1-Ohm Stable: The PA400.1
amplifier features a 1-ohm stable design so it can drive even the most demanding
subwoofers. The amplifier is rated at 400 watts RMS x 1-channel at 1-ohm.
Class D Amplifier: The Polk Audio PA400.1 employs a super
efficient Class D pulse-width modulation amplifier design. This type of
amplifier design draws less power and runs cooler so you won't heat up the
inside of your vehicle or make the headlights dim.
MOSFET Power Supply: The amplifier's high-speed MOSFET switching power
supply and high current Bipolar Output Transistors pump maximum voltage and high
current to your speakers or subwoofers.
Parallel Connection: The amplifier is equipped with two
pairs of chrome-plated speaker terminals for an easy parallel subwoofer
connection when connecting only one subwoofer.
Double Layer Fiberglass Epoxy Printed Circuit Boards:
employs double layer fiberglass epoxy printed circuit boards for more rigidity
and less shrinkage, with plated through-holes instead of jumpers, for twice the
amount of component contact area. This efficient layout packs more circuitry,
with tighter component tolerances, into a smaller circuit board for a smaller
overall amp footprint.
6-Way Smart System Protection (SSP) Circuits:
Power and Ground-Reversal Protection, Thermal and Short Protection, Current Overdraw and
Low Impedance Protection circuits with auto-Standby Mode ensure safety,
reliability and durability.
Status LED: The amplifier features a Status LED which will illuminate
Green to indicate the amplifier is on and operating normally, and will be
illuminated Red if the amplifier shuts down due to short circuit, DC offset, or
overheating detected by onboard protection circuitry.
Aluminum Construction: The amplifier features an anodized extruded
brushed-aluminum cover and textured end caps for maximum heat dissipation. The
cast aluminum textured end caps optimize heat dissipation and hide and protect
the amplifier's connections and controls. The end caps are removable to access
the amplifier's connections. The amplifier also features a solid
aluminum logo and model number panel which is back lit in cobalt blue.
Gain Control: The Gain Control operates the amplifier's
sensitivity and is used to match the input level of the amplifier to the output
level of your signal source (headunit).
Crossover: The amplifier features built-in 12
db/octave variable low-pass crossover which can be set between 30 to 250Hz to
fine tune your connected subwoofers.
Bass EQ: The amplifier employs an
8 dB bass boost at 40Hz for added bass response.
Subsonic Filter: The PA400.1 utilizes a defeatable 24
dB/octave subsonic filter to eliminate very low frequencies below 30Hz that are
difficult to reproduce, rob amplifier power, increase distortion and can damage
Phase Switch: The PA400.1 features a 0-degree or 180-degree selectable
Phase Switch for switching the phase output of your connected subwoofer.
Remote Gain Knob: The PA400.1 amplifier
comes supplied with a wired remote gain knob which allows you to control the
amplifier gain from a remote location in your vehicle for ease of adjustment
during listening. The remote gain knob comes with a 16' cord which plugs into
the back of the remote gain knob and the amplifier. The remote gain knob
features integrated flanges and comes supplied with two philips-head screws for
mounting the device. The remote gain knob measures 2.645" wide x 0.745" tall x
Power: The amplifier is equipped with a 0.4375"
chrome-plated screw-terminal to connect through a fuse or circuit breaker to the
positive terminal of the vehicle battery or the positive terminal of an isolated
audio system battery using a 8-gauge power wire (minimum). The Power terminal
will accept up to 4 AWG power wire.
Ground: The amplifier is equipped with a 0.4375"
chrome-plated screw-terminal which connects directly to the sheet metal chassis
of the vehicle using the shortest 8-gauge wire (minimum) necessary to make the
connection. The Ground terminal will accept up to a 4 AWG ground wire.
Remote Turn-On: The amplifier features a 0.3125"
chrome-plated screw-terminal which turns on the amplifier when 12-volt is
applied to it. This terminal should be connected to the remote turn-on lead of
your headunit or signal source.
Speaker Terminals: Four 0.3125" chrome-plated
screw-terminals for connection to your subwoofer or subwoofers using 16 to 12-gauge
Fuses: The amplifier features two 25-amp fuses to protect
the amplifier against internal electrical damage. The amplifier comes with two
inserted fuses and two spare fuses.
RCA Input Jacks: One pair of chrome-plated stereo RCA jacks
which accepts the line-level output from your headunit or signal processor at
voltages between 150mV and 7.5 Volts.
RCA Line Output Jacks: One Pair of chrome-plated stereo RCA
pass-through jacks which can be used to send the input signal to a second
amplifier in your system unaltered.
Remote: Remote input for supplied wired Remote Gain Knob.
LED/Fan Input: This input allows connection of an optional LED light
bar or optional cooling fan for the amplifier using the supplied