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INTRODUCTION
The Clarion APX600.5 is a full-featured five-channel amplifier. It comes with
the following features:
• Full frequency response with low distortion and exceptional signal to noise
performance
• Advanced circuit design for flexibility and operation of 5, 4 or 3 channel
systems
• Independent front high pass & rear high / low / bandpass electronic crossovers,
each with a 12dB per octave slope and full adjustment range (55Hz to 5.5kHz)
to aid in audio system design
• Subwoofer electronic crossover with 12 or 24DB per octave slope and full
adjustment range (55Hz to 550Hz)
• Variable bass boost circuit to reinforce low frequency signals that may be lost
due to subwoofer enclosure design
• Adjustable input level controls (front, rear, and subwoofer) with ground loop
isolation accepting a wide range of input signals
• Remote turn-on with “soft start” muting to prevent turn-on “thump”
• Pulse-width modulated (PWM) MOSFET power supply with low AM RFI and
protection circuits for overheating and speaker shorts
• 2 ohm load capability to drive a variety of speaker systems
• Gold-plated input/output connectors
• Low profile, compact size for space limited installations
• Front and Rear High Level Inputs
• Front, Rear and Suwoofer gold-plated RCA Inputs
• Optional Remote Bass Control Available (BC1)
ABOUT THE MANUAL AND WARRANTY
To start enjoying your new Clarion five-channel amplifier, please read the
following instructions listed in this manual. Keep all instructions for future
reference. Please fill out and send in the enclosed warranty card to protect your
purchase and aid in warranty service. Also, save your original sales receipt as
proof of purchase.
TABLE OF CONTENTS
Description • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • •3
Input Connections and Audio Controls • • • • • • • • • • • • • • • • • • • • 3
Connections for Power and Speakers • • • • • • • • • • • • • • • • • • • • • 5
Crossover Selection Switches • • • • • • • • • • • • • • • • • • • • • • • • • • 5
Applications • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • 7
Installation • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • 11
Mounting Precautions • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • 11
Wiring Precautions • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • 11
Setting the Gain • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • 13
Setting the Crossover • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • 13
Setting the Bass Boost • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • •13
Final System Check • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • 14
Troubleshooting • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • •14
Product Specs • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • 15
APX600.5 Power System Amplifier
2
INTRODUCTION
DESCRIPTION
The Clarion APX600.5 five channel car audio amplifier is an excellent choice
for creating a variety of multi-channel sound systems. It features built-in
system design flexibility that allows you to create a 3, 4, or 5 channel amplifier
system with a flip of a switch. You can also configure the front, rear and
subwoofer amplifier sections to drive a set of satellite speakers and/or
subwoofer.
The built-in 12 dB per octave electronic crossover lets you custom tailor the
sound of the front and rear channels, using two independent filters with
adjustable crossover frequencies for high-pass or low-pass filtering.
The amplifier also uses an unregulated MOSFET power supply for superior
control of output wattage. Atoroid-coil transformer yields maximum power
transfer with minimum heat loss. Careful circuit design keeps AM RFI at low
levels, so you won’t hear unwanted noise when the level is cranked up.
Protection circuits safeguard the amplifier when overheating, speaker shorts or
improper load conditions occur.
The main connections and controls are on the end panels and are easy to
understand. System configuration switches and signal flow chart are on the
bottom panel of the amplifier. Gold-plated RCAand barrier connectors are
used to ensure the best electrical connection for your system.
INPUT CONNECTIONS AND AUDIO CONTROL
The front panel of the APX600.5 contains connections for High / Low Level
Inputs and Audio Adjustments as shown below.
OWNER'S MANUAL
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DESCRIPTION
1 Speaker High Level Inputs
2 Rear RCA Input Jacks
3 Front RCA Input Jacks
4 Sub RCA Input Jacks
5 Gain Controls
6 Rear Hi / Low Frequency Control
7 Front Hi Pass Frequency Control
8 Sub Low Pass Frequency Control
9 Power Indicator
0 Rear Hi Pass Frequency Control
q Front Frequency Multiplier Switch
w Subwoofer Bass Boost Control
Figure 1-
• Gold-Plated RCA Input Connectors -The Input Connections are Gold-
Plated RCA Jacks and are labeled as Right Front, Left Front, Right Rear, Left
Rear, Right Sub and Left Sub.
• Gain Controls - The Gain Controls provide a wide adjustment range to
accommodate output levels from any brand of source unit. Seperate Front,
Rear, and Sub Gain Controls allow you to set the nominal operating level of the
amplifier. The amplifier ranges are 250mV to 2.5V for RCA inputs and 500mV
to 5V for speaker level inputs.
• Bass Boost Control - The amplifier also features a “high-Q” (i.e. narrow
frequency band) Bass Boost circuit for the subwoofer output. It acts much like
an equalizer, with an adjustable gain (from 0 to +15dB) fixed at 45Hz. Use
this feature to tune low-frequency audio response 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 the car audio environment.
Note: If Bass Boost is undesired, set Bass Boost to 0dB.
High-pass/Low-pass Filter Controls
• Freq (Hz) Controls - The front crossover frequency is fully adjustable
between 55Hz and 5.5KHz (via the front crossover frequency multiplier). The
rear crossover frequency is fully adjustable between 55Hz and 5.5 KHz (via the
Rear Crossover Frequency Multiplier) for a wide range of crossover points.
Use this feature, along with your speaker manufacturer’s specs to adjust to
recommended crossover frequencies (see Applications on page 6.) NOTE: If
either of the X-Over Mode Switches is set to FULL RANGE, varying the Freq
(Hz) Control will produce no effect.
• Front X-Over Frequency Multiplier Switch - When engaged, this switch
increases the crossover frequency of the front channels by a factor of 10.
Example: If the Freq (Hz) dial is set for 240Hz, pushing in the Multiplier
Switch changes the setting to 2400Hz.
• Speaker Level Inputs - These provide connections for a high-level stereo
source. In addition, these connections are provided for installations where the
source unit’s RCAoutputs are unavailable such as OEM radios.
WARNING: When using the speaker (high-level) inputs, the Black wire must
be grounded at the Radio. Failure to do this will result in noise and improper
operation.
APX600.5 Power System Amplifier
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CONNECTIONS
CONNECTIONS FOR POWER AND SPEAKERS
The rear panel of the APX600.5 contains power and speaker connections as
shown below.
CROSSOVER SELECTION
SWITCHES
The bottom panel of the APX600.5 contains crossover selection switches as
shown below.
OWNER'S MANUAL
5
CONNECTIONS
1 Left Rear Speaker Output
2 Right Rear Speaker Output
3 Remote Turn-on Input
4 Ground Input
5 Battery + 12v Input
6 Remote Sub Level Connector
7 Left Front Speaker Output
8 Right Front Speaker Output
9 Subwoofer Speaker Output
0 + 12 V Cap Input
Figure 2-
1 Rear Output Mode Switch
2 Band Pass Selection Switch
3 Rear X-Over Selection Switch
4 Band Pass Multiplier Switch
5 Sub Source Selection Switch
6 Input Source Selection Switch
7 Rear Crossover Multiplier Switch
8 Sub X-Over Slope Selection Switch
9 Front X-Over Selection Switch
0 Front Output Mode Switch
Figure 3-
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