Clarion APX1300 amplifier
includes a continuously variable 50-300 Hz low-pass crossover to filter out the
highs from your subwoofer. The crossover has a 12dB/octave slope. For full range
operation, you can set the X-Over mode to "Off" and the Frequency control has no
Bass Boost: You can engage a
narrow frequency band (High Q) bass boost circuit to compensate for a less than
ideal subwoofer enclosure design. The added boost produces rich, full bass tones
that are normally difficult to reproduce in a car audio environment. The Bass
Boost circuit has a fixed frequency at 45Hz. You can select a gain of +6db or
+12dB, or select "Off" if you don't want to boost the bass frequencies.
The amplifier has a two-way protection circuitry. The amplifier will shut down
when the operating temperature is too high and when the speaker outputs are
shorted. A red LED on the left side of the amplifier glows when the amp has shut
down and is in protection mode.
Speaker-level and Line-level
Inputs: The amp provides both line-level and speaker-level inputs. If
connecting a receiver with line outputs, you can use an RCA stereo patch cable.
If the receiver does not have line outputs, you can splice the supplied
high-level speaker input harness to the receiver's left and right speaker wires,
then plug the harness into the amplifier.
Gold-plated Terminals: The
APX1300 features gold-plated connections, including the screw terminals for
power, ground, remote, and speakers, as well as the RCA line inputs. These
gold-plated terminals prevent corrosion and provide excellent signal transfer.
CEA-2006 Compliant: CEA-2006 is
a system of testing & 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. CEA-2006
allows consumers to compare car amplifiers and receivers on an equal basis.
- Gain Control: a rotary
control used to set the amplifier's input sensitivity to match
the level of the incoming signal
- Bass Boost control: a
3-way switch used to set the bass boost from 0 (center position) to +6dB
(left) or +12dB (right) at 45 Hz
- Crossover (X-OVER) Control:
- Frequency: a rotary control that
sets the crossover cut off
frequency from 50 to 300Hz
- Mode: a 2-way switch used
to set the crossover to Low Pass Filter (LPF) or Off (Full Range)
- Low Input: 1 pair of
stereo RCA inputs
- High Input: 5-pin plug-in
clip for use with the supplied high-level speaker input harness
- Speaker Terminals: 4
gold-plated screw terminals
- Note: There are two +/- pairs
of speaker terminals, but they are connected together internally and they
provide mono output. If two 4-ohm speakers are connected, one to each set of
terminals, the amplifier will see a 2-ohm load, because the terminals are
internally connected, in parallel with each other
- +12V (power): screw terminal
- GND (ground): screw
terminal (0.5" wide)
- REM (remote turn-on): screw terminal (accepts up to 8-gauge wire)
- Fuses: three 20-amp fuses
- RMS power at 4 ohms: 300
watts x 1 (20-300Hz, at 0.1% THD)
- RMS power at 2 ohms: 400
watts x 1 (20-300Hz, at 0.1% THD)
- Max power output at 4 ohms:
400 watts x 1
- Signal-to-Noise Ratio:
- Frequency Response: 20-30kHz Full
- Input Impedance: 22k Ohm
- Allowable Battery
Our Product Research Team
At Crutchfield, you'll get detailed, accurate information that's hard to find elsewhere.
That's because we have our own in-house Product Research team — they open the box,
verify contents, check the owner's manual, and record dimensions, features and specs.
We stay on top of new products and technologies to help people make informed choices.