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XC1120

Clarion XC1120, XC1420 Owners Manual And Installation Manual

Owner’s Manual and Installation Manual Mode d’emploi et manuel d’installation
XC1120 XC1420
XC1120 and XC1420 Amplifi ers Amplifi cateurs XC1120 et XC1420
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THANK YOU
Congratulations on your purchase of a Clarion XC1 Series amplifi er. This high speed digital switching amplifi er was designed in the United States with sound quality that exceeds that of many conventional Class AB designs while offering stunning effi ciency.
When installed and confi gured properly, this XC1 Series amplifi er will bring a new level of realism and impact to your mobile entertainment system. To get the best performance from your amplifi er Clarion recommends that you have this amplifi er installed and confi gured by an experienced professional.
ABOUT THE MANUAL AND WARRANTY
This manual describes the basic requirements to install both the XC1120 and XC1420 amplifi er. The installation and confi guration of these amplifi ers can be complex. If you do not possess the necessary knowledge, experience and/or tools to perform this installation please contact your local authorized Clarion dealer to arrange for professional installation. Keep all instructions and your sales receipt for future reference and warranty purposes.
WARNING
Clarion products are capable of producing high sound pressure levels that can damage your hearing and make it diffi cult for the driver to hear other cars or emergency vehicles. Clarion wants you as a customer for life - please be responsible at all times when enjoying your audio system. Clarion takes no responsibility for any personal injury, loss or damage associated with the use, or misuse of this product. Please refer to the included warranty statement for details.
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FEATURES - XC1120
The Clarion XC1120 amplifi er is designed with performance and convenience in mind. Through the use of state-of-the art signal processing and high speed output devices, this amplifi er offers excellent sound quality and dynamics. The XC1120 amplifi er incorporates the following features:
• High Speed output devices for dynamic performance
• Pulse Width Modulated MOSFET Power Supply for effi cient power delivery
• Remote Turn-On with muting for silent start-up
• Adjustable Low-Pass Electronic Crossover with -12dB/Octave Slope, 60, 90 or 250Hz
• Adjustable input level controls with ground loop isolation
• 2-Ohm load stable
• Corrosion resistant power, speaker and RCA connections
• BC2 Remote subwoofer level control compatible
• Speaker level input Jack included
• Circuit Boards with a conformal coating to resist moisture damage
• Low Profi le design with corrosion resistant high effi ciency aluminum heat sink
XC1120 CONNECTIONS AND CONTROLS
1. Bass EQ Switch
2. Input Sensitivity Control (Gain)
3. BC2 Remote Level Control Connection Jack
4. Power/Protection LED
5. Input RCA Connection Pigtails
6. Speaker Level Input Jack
7. Crossover Frequency Selector
8. Preamp/Speaker Level input selector
9. Power Input Connector Jack
10. Output Speaker Wires: Red: + Output Black: - Output
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FEATURES - XC1420
The Clarion XC1420 amplifi er is designed with performance and convenience in mind. Through the use of state-of-the art signal processing and high speed output devices, this amplifi er offers excellent sound quality and dynamics. The XC1120 amplifi er incorporates the following features:
• High Speed output devices for dynamic performance
• Pulse Width Modulated MOSFET Power Supply for effi cient power delivery
• Remote Turn-On with muting for silent start-up
• Selectable High-Pass Electronic Crossover with -12dB/Octave Slope - 60/90/Off
• Adjustable input level controls with ground loop isolation
• 2-Ohm load stable
• Bridgeable design (Minimum impedance 4 Ohms)
• Corrosion resistant power, speaker and RCA connections
• Speaker level input RCA Adapters
• Circuit Boards with a conformal coating to resist moisture damage
• Low Profi le design with corrosion resistant high effi ciency aluminum heat sink
XC1420 CONNECTIONS AND CONTROLS
1. Front Channel’s Input Sensitivity Control (Gain)
2. Rear Channel’s Input Sensitivity Control (Gain)
3. Power/Protection LED
4. Input RCA Connection Pigtails
5. Front Channel’s Crossover Frequency Selector
6. Rear Channel’s Crossover Frequency Selector
7. Power Input Connector Jack
8. Output Speaker Wires White: Left Front + Green: Left Rear + White/Black: Left Front - Green/Black: Left Rear ­ Grey: Right Front + Violet: Right Rear + Grey/Black: Right Front - Violet/Black: Right Rear -
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General Function Explanation
Sensitivity Control (Gain)
This adjustment is provided to adjust the amplifi er sensitivity so that it will produce maximum power given a variety of different input signal voltages. Setting this correctly will ensure that you get maximum performance from your amplifi er and is critical to ensuring that minimal noise and distortion is produced.
Clarion recommends the use of an Oscilloscope or distortion detecting device such as the SMD DD-1 or DD-1+ Distortion Detector to properly set amplifi er sensitivity. A headroom (gain overlap) setting of 10dB will help to ensure that music that is recorded at low levels can still be reproduced at high volume levels. With this setting, it is the responsibility of the operator to use the amplifi er in a manner that will not produce audible distortion. If the end user does not understand why 10dB of gain overlap has been used, please use a lower overlap, 5dB or 0dB to ensure proper system protection.
Procedure (Oscilloscope) Method:
1. Obtain a test disc with a selection of Sine Waves recorded at different levels (-10, -5 and 0dB).
2. Turn the gain all the way down on the amplifi er (to the left).
3. Connect the ground terminal of the scope lead to the shield of the RCA cable coming from the source unit. Do no connect this to the speaker output terminals.
4. Connect the scope probe to a speaker terminal on the channel you want to adjust.
5. Select a Sine wave frequency that is well away from the chosen crossover frequency. For midrange speakers use 1kHz, use 40Hz for subwoofers.
6. Turn the source unit up as high as possible without distortion.
7. Monitor the output waveform of the amp on the scope.
8. Increase the sensitivity of the amplifi er until the scope waveform shows a small fl at spot on the top or bottom of the waveform. See Figure 2 for an example of what to look for.
SMD Distortion Detector Method:
1. Following the instructions provided with the DD-1 or DD-1+, use the 0dB track to confi rm the output of the source unit is unclipped.
2. Connect the Distortion Detector to the output of the amplifi er and use an appropriate
-10dB track. Increase the gain on the amplifi er until the Distortion LED illuminates
You should be able to turn the volume up to almost full volume without hearing distortion from your amplifi er. If you can’t turn the volume up most of the way without distortion, the gains are not set properly.
Sine wave unclipped
Clipped Sine wave
Sine wave well bellow clipping
Fig 1 - Sine Wave at different Levels
Fig 2 - Close-Up of waveforms
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General Function Explanation Continued
+12V Constant Power Source
This should be connected directly to your battery with a large gauge wire. Clarion recommends at least 8 AWG wire be used. This wire should be protected with a fuse as close as possible to the battery. A water-resistant fuse holder with a minimum 30 Amp fuse is recommended for proper operation.
Remote Turn-On Connection
When +12V is applied to this terminal, the amplifi er will turn on. When installing the amplifi er with an after market source unit, this wire is typically Blue with a White stripe. Some OEM source units have a wire that behaves similarly.
Ground Connection
This is the most critical connection to be made during the installation of the amplifi er. The ground wire should be at least the same gauge as the +12V Constant Power connection. It should be as short as possible and connected to a completely bare metal location on the chassis of the vehicle. All the paint, primer, undercoating or anything else that could hinder current fl ow must be removed before the ground connection is made. Failure to ensure proper grounding of the amplifi er may result in limited performance, noise or other undesirable conditions.
Input RCA Connections
The RCA Input connections should be connected to the RCA Pre-amp outputs of an after market head unit. If you are using a signal source that only has speaker level outputs, adapters are included with each amp. On the XC1120, please connect the Speaker Level input Jack and set the Preamp/ Speaker switch to Speaker. On the XC1420, please use the included RCA pigtails and wire them according to the adjacent image. Note, there are electronic components in these connectors used to attenuate the signal. Do not substitute conventional RCA terminals for these or damage may occur.
Remote Level
The XC1120 amplifi er is compatible with the optional BC2 remote subwoofer level control. This control can be mounted in the front of the vehicle to allow the user to adjust the output of the amplifi er to match his or her musical tastes. The provided cable should be attached at this point.
Crossover Frequency Control
This adjustment allows the use to alter the -3dB frequency of the crossover. The crossover control is selectable between 60Hz or 90Hz. The XC1120 has a third setting of 250Hz that should be used with a source unit or processor with it’s own low-pass fi lter. To use the XC1420 amplifi er for full-range audio, set the Crossover frequency control to “Full”
Power / Protect LED
This LED will illuminate Green when the amp is powered up. In the event that the internal protection circuitry is activated due to a short circuit, over-temperature or low voltage condition, this LED will illuminate Red.
Red
White
Red
Black
White
Blue
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General Function Explanation Continued
Bass EQ Control
This XC1120 control allows you to add 12dB of boost, centered at 45Hz to the audio signal. This will add impact and depth to the sound of your system. Take caution with this control, as it can dramatically increase the current requirements of your amplifi er, drive the amplifi er into clipping and may cause damage to your subwoofer(s).
INSTALLATION PLANNING AND CONSIDERATIONS
Clarion XC1 Series amplifi ers are designed for installation in vehicles with 12V electrical systems and a common ground confi guration. While Clarion strongly recommends professional installation of our products to maximize performance and reliability, installing the amplifi er yourself can certainly produce impressive results. Please take into consideration the following when planning your installation.
• Take care in choosing a mounting location for the amplifi er. Clarion does not recommend mounting an amplifi er to a subwoofer enclosure. Vibrations could damage internal components of the amplifi er.
• Ensure the screws used to mount the amplifi er will not damage anything underneath the mounting location. This can include interconnects and speaker wires, factory wiring harnesses, computer modules, factory fl uid lines, fuel tanks and more. Mounting hardware should be suffi cient to ensure the amp will not come loose in the event of a vehicle accident.
• All wiring running to and from the amplifi er should be planned so that it’s route does not bring it in proximity of any high current devices or computer modules. This will help prevent noise from being induced into the audio system.
• XC1 amplifi ers incorporate balanced differential inputs. As such, Clarion recommends the use of twisted pair interconnects to ensure the signal on the center pin and shield of the interconnect allow this circuitry to perform to the best of its ability in terms of rejecting unwanted noise.
• Although Clarion XC1 amplifi ers are suitable for marine installations, they are not water resistant. They should be mounted in a dry, well-ventilated location. The marine features of the amp are designed to handle humid conditions commonly associated with installations in boats.
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XC1120 Speaker Wiring Diagrams
Speaker Connections
The XC1120 amplifi er is capable of driving a reactive load with a minimum nominal impedance of 2 Ohms. Clarion recommends the use of at least 12 AWG wire to connect your subwoofer(s).
One 2 Ohm Coil Subwoofer
One Dual 4 Ohm Coil Subwoofer
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Speaker Wiring Diagrams Continued
Two Single 4 Ohm Voice Coil Subwoofers
Two Dual 2 Ohm Voice Coil Subwoofers
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