cerwin vega CUPRO2K4 Monoblock Pro Amplifier User Manual

cerwin vega CUPRO2K4 Monoblock Pro Amplifier

INTRODUCTION

Cerwin Vega Mobile Amplifiers
Thank you for purchasing a Cerwin Vega Mobile amplifier for your car audio system. You have chosen Cerwin Vega Mobile because you deserve the best!

Cerwin Vega Mobile amplifiers are designed and engineered to the highest quality standards in the industry to create the ultimate listening experience in your vehicle. For optimal performance of this product, it is highly recommended that you have your new amplifier installed by an authorized Cerwin Vega Mobile dealer. Our authorized dealers have the necessary experience and installation equipment to ensure that your amplifier will deliver maximum performance and explain all the details pertaining to our warranty coverage as well.

If you decide to install the amplifier by yourself, please thoroughly read through this manual before getting started. This manual will help familiarize you with this amplifier and guide you through the installation process and procedures. Please contact your local authorized Cerwin Vega Mobile dealer if you have any questions regarding the instructions in this manual or the amplifier’s operation capabilities. If you require additional assistance, please contact the Cerwin Vega Mobile Technical Support Department during business hours at 213-2 61-4161. (PST)
WARNING: Prolonged exposure to sound pressure levels in excess of l OOdB can cause permanent hearing loss. Cerwin Vega Mobile amplifiers can exceed that level so please exercise restraint when listening and enjoying your new amplifier.

GENERAL PRECAUTIONS

•  This unit is designed for negative ground 12V DC operation only.
•  Total system impedance must not be less than l ohms.
•  Avoid installing the unit where:
  •  It would be subject to high temperatures, such as in direct sunlight or hot air from the heater.
  •  It would be exposed to rain or moisture.
  •  It would be subject to dust or dirt.
•  Do not cover the unit with carpet or wires.
•  Do not use the unit with a weak auto battery. Optimum performance depends on a normal battery supply voltage.
•  For safety reasons, keep the volume of your car audio system moderate while driving your vehicle so that you can still hear normal traffic sounds and emergency vehicles outside your car.

MOUNTING PRECAUTIONS

Although Cerwin Vega Mobile amplifiers incorporate heat sinks and protection circuits, mounting the amplifier in a tight space without any air movement can still damage internal circuitry, over time. Choose a location that provides adequate ventilation around the amplifier. For easy system set-up, mount the amplifier so the side panel walls will be accessible after installation. To increase thermal run times on low impedance loads, on additional fan is recommended, remember any moving air across the amplifier will reduce heat. In addition, observe the following precautions:

1. Using a felt pen mark, the mounting hole locations,
2.  Mounting the amplifier on carpet will significantly reduce air flow, resulting in reduced thermal run times.
3.  Mount the amplifier on a solid surface. Avoid mounting to sub woofer enclosures or areas prone to vibration. Do not install the amplifier on plastic or other combustible materials.
4.  Prior to mounting the amplifier, make sure not to cut or drill into the fuel tank, fuel lines, brake lines (under chassis) or electrical wiring.

WIRING PRECAUTIONS

1.  Before installation, make sure the source unit power switch is in the OFF position.

2.  Disconnect the negative (-) lead of the battery before making any power connections.

3.  When making connections, be sure that each one is clean and secure. Insulate all of your connections. Failure to do so may damage your equipment.

4.  A secure clean ground connection is critical to the performance of your amplifier. Connect the ground directly to the car chassis to minimize resistance and avoid any noise problems.
   CURRENT FLOWS FROM THE GROUND SIDE

5.  Add an external fuse on the amplifier’s positive(+) power lead and connect it as close as possible to the vehicle’s(+) battery terminal. Use a fuse rating that equals l /2 the total current consumption at full output of all amplifiers in the system. This external fuse will protect the vehicle, NOT the amplifier(s) from short circuits that can cause a fire.

INSTALLATION

VEHICLE ELECTRICAL SYSTEM

Amplifiers (regardless of the brand name) will put an increased load on the vehicle’s battery and charging system. Cerwin Vega Mobile recommends checking your alternator and battery condition to ensure that the electrical system has enough capacity to handle the increased load of your stereo system. Original equipment electrical systems which are in good condition should be able to handle the extra load of any CVM amplifier without problems, although battery and alternator life can be reduced depending on your individual listening habits. To minimize the performance of your amplifiers, we suggest the use of additional batteries. Remember that it takes power to make power. Energy isn’t FREE.

SPECIAL NOTE: YOU WILL NEED 1/0 GUAGE WIRE … OFC…NOT CCA WIRE!!!

WARNING: Avoid running power wires near the low-level input cables, antenna, power leads, sensitive equipment or harnesses. The power wires carry substantial current and could radiate noise into the audio system through the audio cables.

1.  Plan the wire routing as described in the “Importance of Pre-Planning” section. Keep RCA cables close together but isolated from the amplifier’s power cables and any high-power auto accessories, especially electric motors. This is done to prevent coupling the noise from radiated electrical fields into the audio signal. When feeding the wires through the firewall or any metal barrier, protect them with plastic or rubber grommets to prevent short circuits. leave the wires long at this point to adjust for a precise fit at a later time.
2. Prepare the power wire for attachment to the amplifier by stripping 5/8 inch (1 5.9mm) of insulation from the end of the wire. Insert the bare wire into the B+ terminal And tighten the set screw to secure the cable in place. WARNING: The B+ cable MUST be fused 18″ or less from the Vehicles positive battery post. Choose a location to install waterproof fuse-holder under the hood and ensure connections are water tight. If you do not use the appropriate fuse-holder, the connection will eventually suffer corrosion from moisture and heat.
3. Trim the power cable within 18 inches (45.7mm) of the positive battery post and splice an inline fuse holder. DO NOT install the fuse at this time.
4. Strip 1 /2 inch ( 12.7 mm) from the battery end of the power cable. Crimp and soldier a large ring terminal to the cable. Connect the ring terminal to the positive ( +) battery post.

SPECIAL NOTE: THESE AMPLIFIERS CAN DRAW MASSIVE AMOUNTS OF CURRENT BE AWARE

1.  Prepare the ground wire for attachment to the amplifier by stripping 5/8″ of insulation from the end of the wire. Always use a wire of the same gauge as the power connection, never smaller. Insert the bare wire into the GND terminal and tighten the set screw to secure the cable in place. Prepare the chassis ground by scraping any paint from the metal surface and thoroughly clean the area of all dirt and grease. Strip the other end of the wire, crimp and solder a ring connector. Fasten the cable to the chassis using a non-anodized screw with a star washer.
   WARNING: It is important to upgrade the ground connection between the negative (-) battery post and the vehicle body or chassis to achieve optimum electrical performance.

2. Prepare the REM turn-on wire for attachment to the amplifier by stripping 5/8 inch (15.9mm) of insulation from the end of the wire. Insert the bare wire into the REM terminal and tighten the set screw to secure the wire in place. Connect the other end of the REM wire to a switched 12-volt positive source. The switched voltage is usually taken from the source unit’s remote amp turn-on lead. If the source unit does not have this output available, the recommended solution is to wire to an accessory terminal in the car’s fuse block using a relay to isolate the amplifier from the vehicle’s accessory circuit. This however will turn the amplifier on and off with the ignition key, regardless of whether the car stereo is on or off.

3. Securely mount the amplifier to the vehicle or amp rack. Be careful not to mount the amplifier on cardboard or plastic panels. Doing so may enable the screws to pull out from the panel due to road vibration or sudden vehicle stops

4. Connect from the source signal by connecting the RCA audio cables to the input jacks at the amplifier.

RCA CONNECTION DIAGRAM

9. Connect the speakers. Speakers impedance should NEVER be less than l Ohms MONO ( The 3K AND SK are stable into I ohm). For most applications 16 gauge wire is adequate for the speaker leads. For leads in excess of ten feet 12 gauge wire is recommended. Strip the speaker wires 1/2″ (12.7mm) and insert into the speaker terminal block, then tighten the set screw to secure into place. When wiring the speakers, pay careful attention to the polarity of the terminals on the speakers and make certain they correspond to the polarity on the amplifier. DO NOT chassis ground any of the speaker leads as unstable operation or damage to the amplifier and/ or speaker may result.

FUNCTIONS

•  STATUS – These lights indicate when the amplifier is powered up normally and when there is a protection fault. The Protect LED is illuminated when there is a problem with your amplifier. Please contact your authorize CVM dealer or call CVM’s technical support.
•  RCA INPUT (PRE INPUT) – The RCA jacks allow for a normal left and Right channel signal input. Simply connect to the source unit using RCA-type audio cables, keeping them away from power wiring wherever possible to reduce the risk of noise.
•  GAIN – This control matches the preamp stage of the Cerwin-Vega Mobile amplifier to your source unit. This is NOT a volume control. The range is between approx l 50mV -l 2V.
• COVERS – Crossover is ALWAYS ACTIVE. Use this adjustment to select the crossover point. Remember that you must select the High Pass or lowPass crossover, this All depends on what you are doing. Subwoofer ONLY?
• Then it is a low Pass setup. Building a super crazy Pro Sound Bus with 8 Pro Mids and 8 Pro tweeters, then you select High Pass. This is adjustable l 5Hz -1, SOOHz for High Pass and SOHz – 20,000Hz for low Pass
• adding a boost to subwoofer systems os they may not be able to handle the additional low-frequency boost.
•  BASS BOOST FREQ- This control adds Oto + l 2dB of Bass boost at 35Hz · 70Hz. Be cautious when adding boost to subwoofer systems as they may not be able to handle the additional low frequency boost.
•  SUBSONIC*- Use the High Pass Filter to be the such-sonic FILTER below the tuning frequency of a ported enclosure. This helps to protect
•  BASS REMOTE – This port is for the remote level control (included with the CVPro3K and CVProSK). The control is intended to allow the
• @ POWER INPUT – These connections are for input power, chassis ground, and remote turn

THE CVMPR03K/ 5K ARE THE SAME HEIGHT AND WIDTH – ONLY LENGTH CHANGES

Set up

using the CVP03K, SK, or CVPR02k4 as a subwoofer amplifier adjusts the LowPass Filter. Typically start at about 80-1 Hz. This setting allows ALL frequencies to pass to the subwoofers.

To adjust the gain setting, turn the amplifier gains all the way down (counterclockwise). If using the included Bass Remote Level control plug the remote level control into the amplifier and turn it to about l /2 way up. Next turn the source unit volume up to almost full volume (usually about 2/3rds of the way up) or until the output starts to distort on an oscilloscope. This will be NEARLY full volume on most source units, perhaps one or two “clicks” down from maximum volume. Next, increase the amplifier gain setting until the adequate volume is achieved, or until the distortion is audible, and then turn it down a bit until the distortion is inaudible.

The HPF or LPF crossover adjustment can now be fine-tuned. If you are using the amplifier in an HPF configuration and would like the system to be a little bit louder you can increase the HP Filter frequency and reset the “Gain” of the amplifier. Raising the HPF frequency up too high, however, will cause a loss of mid-range and bass. If you are using the amplifier in an HPF filter configuration and you hear voice or vocals coming from your subwoofer system you can tum the Low Pass Filter frequency down (lower).

After setting the input gain adjustment and crossover, you may choose to add a small amount of “Vega Bass Boost” in the low-frequency region. Remember that the Bass Boost feature will not fix a poorly designed subwoofer ensure or subwoofers that didn’t sound good, to begin with. You’ll need to play with the Frequency also. Depending on the length of your vehicle will change the boost frequency. Now would be a good time to use your RTA app on your phone.

For a Pro Audio “type” driver begin tuning with the frequency set between 60Hz – l Hz.
Placing the switch in the LPF position sets the amplifier to the Low Pass Filter mode, enabling frequencies below the cutoff point to pass. For a subwoofer system begin tuning with the frequency set between BO Hz – l 20Hz.

NOTE: Ideal signal to noise and dynamic range is achieved with the gain at a minimum. Most users find adequate gain and volume is achieved at less than halfway in the adjustment range. Avoid setting the amplifier gain very high as noise and distortion will increase significantly. For a more in-depth level setting (gain adjustment) procedure AND system designs, visit the CVM website.

1.  Make sure any bass EQ, loudness, or low-frequency equalization from the source unit is set to OFF or FLAT.
2.  While playing the same musical selections used during the gain setting process, slowly increase the level of the Bass EQ. You should be able to notice a obvious change between O and + l 2dB. If you do not notice much difference, then it will not serve any benefit to increasing the boost further.
3.  If the boost has audible benefits without adding appreciable distortion, find a level that suits your taste. Remember: it’s much easier to construct the right subwoofer enclosure for your listening preferences than relying on a bass boost control to do the job!

System Diagrams

TRADITIONAL SUBWOOFER l OHM CONFIGURATION (CVPro3K/5K):

PRO AUDIO FULL RANGE MONO l OHM CONFIGURATION SPECIFICATION

PRODUCT SPECIFICATIONS

WARRANTY

Thank you for purchasing a Cerwin Vega Mobile product and we hope to provide you with countless hours of listening enjoyment. Please take a brief moment to register your new product. By registering your new product, you will receive benefits such as:

•  Important product notifications that may pertain to your purchase.
•  Confirmation and record of ownership in case of loss or theft.
•  Knowledgeable customer service and technical assistance pertaining to your product.

Register your new product by completely filling out this Product and Warranty Registration Card or register online at www.cerwinvegamobile.com. Registration is voluntary and failure to register will not diminish your limited warranty rights.

Limited Warranty (U.S.A.)
Cerwin Vega Mobile warrants all of our amplifiers and speakers to be free of defects in materials and workmanship for a period of one ( l ) year. This warranty is non-transferable and applies only to the original purchaser from an authorized Cerwin Vega Mobile dealer. If service is required and necessary under this warranty due to manufacturing defect or malfunction, then Carwin Vega Mobile will repair and/ or replace the defective product with either new or remanufactured product at no charge at our discretion. Damage to the product caused by the following will not be covered under this warranty: abuse, accident, misuse, neglect, modifications, repairing attempts, seller/installer misrepresentation. This warranty does not cover any incidental, consequential, or cosmetic damage due to accidents or normal wear and tear, nor does it cover the cost of removing or reinstallation of the product. Warranty is void if the product’s serial number has been removed, defaced, and/or tampered with.

Warranty Procedure:
We recommend that you contact your Cerwin Vega Mobile authorized dealer where your original purchase was made to initiate all warranty claims. Our authorized dealers can guide you through the warranty procedure to ensure that your claim will be processed in a timely manner. All warranty returns must be accompanied by proof of purchase (a copy of the original sales receipt) and be shipped freight prepaid to our facility with an RA (Return Authorization) number clearly marked on the outside of the package. Direct returns from consumers or non-authorized dealers will be refused if shipped without a valid RA number authorized by Cerwin Vega Mobile beforehand.

INTERNATIONAL

• Products purchased outside of the U.S.A. are covered only by that country’s distributor and not by Cerwin Vega Mobile U.S.A.
• Please Ship All Warranty Claims With Pre-Authorized RA Number To:
• CV&DA Holdings, Inc.
• ATTN: Customer Service Department
• 37 61 South Hill Street
• Los Angeles, CA 90007 USA
• Please contact Customer Service for Further Warranty Information:
• The U.S.A.
• Tel: 213-261-4161 /Fax: 213-246-2423

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