Transcript
OZ VECTOR ®
Boca Raton, Florida 33487 e-mail
[email protected] www.jti-innovation.com
05/06
VA.1 CLASS D HIGH PERFORMANCE AMPLIFIER
1181 South Rogers Circle, Suite 18
Congratulations you have invested in Oz Audio’s Vector amplifier system! This amplifier system is the product of years of research and development to ensure that you receive the best overall performance that money can buy. This amplifier system exceeds all industry standards in performance and reliability to guarantee years of quality use.
Specifications: M o del:
VA700.1
VA2000.1
RMS Power @ 4 Ω Mono (14.4V)
200W x 1
600W x 1
RMS Power @ 2 Ω Mono (14.4V)
400W x 1
1100W x 1
Features
RMS Power @ 1 Ω Mono (14.4V)
800W x 1
2100W x 1
• Designed and Engineered in the U.S.A.
RMS Power @ 4 Ω Mono (12.5V)
175W x 1
500W x 1
• Class D Operation
RMS Power @ 2 Ω Mono (12.5V)
350W x 1
1000W x 1
• High efficiency MOSFET Amplifier
RMS Power @ 1 Ω Mono (12.5V)
700W x 1
2000W x 1
THD
<.5%
<.5%
Frequency Response
10 Hz - 250 Hz
10 Hz - 250 Hz
• Oversized Capacitor Banks
Signal to Noise
>90dB
>90dB
• Adjustable Low-pass X-Over (50Hz – 250 Hz)
Damping Factor
>200
>200
• Adjustable Subsonic Filter(20Hz – 50 Hz)
Input Sensitivity
.2 - 8 volt
.2 - 8 volt
• Adjustable Phase Control (0-180)
Variable Low-pass
40 Hz – 250 Hz
40 Hz – 250 Hz
• Soft Turn-on and Turn-off circuitry
Variable Subsonic
10 Hz - 50 Hz
10 Hz - 50 Hz
• Remote Bass Control
Slope per Octave
12dB
12dB
Dimensions W x H x L
11.25 x 2.25 x 15
10.5 x 2.25 x 21.65
• Oversized High Current Multi-Stranded Power Torroid • 1 ohm stable
• Two Amplifier Systems can be “Strapped” for Huge Power Gains • Master/Slave input-output • Gold Plated Inputs, Outputs, and RCA Jacks • 1/0 Gauge Power and Ground Inputs • 8 Gauge Speaker Outputs • Three year warranty. (When Installed by an authorized dealer)
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IMPORTANT
Amplifier layout:
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Mounting:
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Choosing the appropriate location for the amplifier(s) is important for prolonged trouble free performance. The location chosen should allow for sufficient air flow, be free of moisture, and excessive heat. Popular choices would include under a seat, the trunk, or in a custom rack. Orientation of the amplifier also plays a key role in heat dissipation as well. The amplifier should be mounted upright. Upside down orientation will compromise the dissipation of heat through the heat sink causing the unit to enter thermal protection sooner than normal. Excessive heat build up will also shorten the lifespan of the internal electronics which can lead to premature failure of the amplifier. To prevent this be sure the amplifier is mounted upright and 2.5 inches of clearance is allowed around the amplifier. If this amplifier is to be mounted in an enclosed fashion a fan should be utilized to aid cooling. Be careful when mounting your amplifier; thoroughly check the area for electrical wires, vacuum lines, and fuel or brake lines to prevent accidental or expensive mistakes.
Electrical Connections:
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The quality of installation is critical to insure that your new amplifier system performs to its full potential. Also improper installation techniques may void the amplifier’s warranty. If you have any doubts or questions it is highly recommended that you have this unit installed by your authorized Oz Audio dealer.
Oz Audio amplifier systems are designed to work within 11.5 to 16 volts DC. As a preventative measure it is highly recommended that the vehicle chosen for installation have its electrical system tested. First using your digital multi meter (set to DC voltage) connect the test leads to the battery terminals with the ignition in the off position and the vehicle off. The DMM should register no less than 12.5 volts. Next check the voltage with the engine running between 1500 rpm and 2000 rpm. The DMM should register between 13.5 – 14.4 volts. If the vehicle does not meet these electrical specifications, we strongly recommend that the vehicle be serviced by an automotive mechanic before continuing with the installation.
Power Wire and Fuse Recommendations: The proper gauge wire and fuse are critical for proper current flow and amplifier performance. These are minimumrecommendations and are for distances up to 20 feet.
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Model
Wire
Fuse
6. After all the ground connections are made, spread silicone over the bolt to prevent
VA700.1
4AWG
70Amp
rust and moisture from entering the vehicle.
VA2000.1
1/0AWG
200Amp
Power Connections: The power cable needs to be connected directly to the battery with the recommended gauge wire. Never connect to the fuse box for main amplifier power. Before starting choose the easiest route from the battery to the amplifier that is free of moving mechani cal parts or sharp metal that may bind or damage the power cable. The following are guidelines for running power cable through the vehicle. 1. Use grommets when passing power wire through any wall (firewall or floor pan). 2. Avoid running power over engine components or near heater cores. 3. Use an inline fuse installed near (within the first 18”) the battery, to help protect the power wire and prevent fires from a short circuit (damage to power due to collision, excessive heat, etc…). 4. Be sure to solder all ring terminals to prevent loose or isolated connections. 5. It is also recommended that the charging wire from the alternator to the battery be upgraded to the same gauge as the power wire as a minimum(bigger is better).
Ground Connections: TThis wire should be the same gauge as the power wire. Make sure to use a different color wire (normally black) to prevent confusion and reversed power connections at the amplifier. Here are the guidelines for connecting the ground wire properly. 1. Avoid using seat bolts, seatbelt bolts, and non-structural metal pieces of the chassis for ground. 2. For applications up to 8 gauge wire, the floor pan can be used for ground connection. Be sure to remove all paint, grease, and oil from the area before drilling and attaching your ground bolt (not a ground screw).
Remote turn on: This terminal must be connected to a 12-volt switched source to make the amplifier operational. As a rule, the remote turn on lead is provided by an aftermarket head unit. This connection will turn the amplifier on or off whenever the head unit is turned on or off. This is done to prevent unnecessary current draw on the battery. Generally this wire will be blue or blue with white stripe, and as always verify this circuit with your DMM before making your connection. If a factory head unit is being utilized the power antenna wire should be used provided it registers 12-volts when energized (colors vary from make, model, and year). If neither one of these options is available a 12-volt source interrupted by a switch can be used. A 16 – 18 gauge wire is recommended for this con nection and to prevent inducted noise it is suggested that this wire be routed with the power wire.
Signal Inputs: IIn order to achieve the utmost clarity and output from your new Oz Audio amplifier- sys tem the signal path must be clean. The recommended signal cable would be in the form of high-end RCA’s, if you are unsure as to which use, consult your local authorized Oz Audio dealer. These signal cables will run from the rear of the head unit to the amplifier. As with the power cable it should be routed away from sharp objects and sharp bends to prevent damage to the signal cable. It is also recommended that this cable be routed on the opposite side of the power cable (power wire down the driver’s side and signal cable down the passenger’s side or vice versa), away from large wire looms and fan motor wires. All of these precautions are to avoid inducted noise into the amplifier. Once this cable is run, you can connect them to the amplifier through the jacks marked input, take a minute to verify that left and right into the amp are matched with left and right out of the head unit as well as for front and rear channels.
Speaker Connections:
connections from the battery to the frame and the frame to the chassis.
Vector mono amplifier systems are designed to reach their output potential at 1-ohm mono. Lower impedances will send the amplifier into protection and may possibly dam age the electronics inside. To held avoid this possibility we have included these formu las to help determine the load put onto the amplifier.
4. Your ground bolts should have lock washers and star washers to insure good contact.
Formula for parallel:
3. If a power wire of 4 gauge or larger is being used (multiple amplifiers or when improved current flow is desired) the ground straps must be upgraded. These are the
5. Ring terminals should be soldered and have direct contact with the ground source.
Impedance divided by the # of coils = New Impedance. For instance, let’s say we have two dual 4-ohm subwoofers.
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4 ٠/ 4 coils = 1 ٠What if you have three single 4-ohm subwoofers? 4 ٠/ 3 = 1.3333٠�������������������������
Now we can look at series. Impedance + Impedance = New Impedance So if we have the same single 4-ohm subwoofers.
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Connecting a subwoofer to these amplifiers will require one extra piece of speaker wire. Connect the speaker wires as shown in the illustrations, if you have any questions or concerns please call Technical assistance (561) 998-0211, or ask your local Oz Audio dealer.
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CAUTION: The nominal impedance is now 2-ohm. If a resistance less than 2-ohm is used, damage to the speaker and or amplifier may occur! ������ ����
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With Vector class D amplifiers, you can “strap” two amplifiers together in a master/ slave configuration. This strapping will result in doubling your power. In this configuration, the master amplifier has total control over the slave amplifier. To strap two amplifiers you need to set one amplifier to MASTER, and the other to SLAVE. The input signal from the head unit should plug into the MASTER amplifier only. Using a single RCA connect the MASTER/SLAVE output to the MASTER/SLAVE input of the SLAVE amplifier. Now, the MASTER amplifier has total control gains, crossovers, and phase.
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Turning the Dials:
Strapping:
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In this section, we will cover the adjustments necessary to achieve great sound from your new amplifier system.
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If you have any questions or concerns contact your local authorized dealer or call Oz Audio Technical Support at 561-998-0211.
When making the connections at the amplifier it is very important to make sure they are making solid contact. Strip the wires insulation back approximately 0.5 an inch and insert the wires into the appropriate openings on the amplifier (power to power, ground to ground). Tinning of the wires is not recommended and should not be done. Be sure no wires are exposed outside of the terminal to prevent possible short circuits. Tighten the set screw until you can tug on the cable without it slipping. It is highly recommended that this step be completed by hand with a screwdriver and not with a power drill to prevent the stripping of the set screw or possible damage to the amplifier. Once all of the connections are complete we can continue to the next step.
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4 Ω + 4 Ω + 4 Ω = 12 Ω
Making the Connections:
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Making the Connections: When making the connections at the amplifier it is very important to make sure they are making solid contact. Strip the wire’s insulation back approximately 0.5 inch and insert the wires into the appropriate openings on the amplifier (power-to-power, ground-toground). Tinning of the wires is not recommended and should not be done. Be sure no wires are exposed outside of the terminal to prevent possible short circuits. Tighten the 9
set screw until you can tug on the cable without it slipping. It is highly recommended that this step be completed by hand with a screwdriver and not with a power drill to prevent the stripping of the set screw or possible damage to the amplifier. Once all of the connections are complete we can continue to the next step.
Setting the Crossover:
Turning the Dials:
Subsonic filters (crossover) allow frequencies higherthan the one selected to pass through to the speaker. Here is an example:
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Setting the Gain: It is a common misconception that the gain is the “volume” knob of the amplifier. This is not true. The purpose of the gain adjustment is to match the signal output of the source unit (aftermarket CD player or factory radio) to the input of the amplifier to allow the largest amount distortion free play. This is important because the less total distortion present the more volume you will be able to achieve. This is a simple process that will allow you to get the gain very close to “dead on” without lots of trial and error. First, with the gain at its lowest setting, turn on the vehicle, and the head unit. Using a musical track that is dynamic and of good recording quality (no MP3’s please), turn the volume of the source unit until audible distortion occurs (normally 3/4 of the way up). Now reduce the volume roughly 1/8th of a turn. Next, slowly turn the amplifier gain clockwise until audible distortion occurs, then reduce the gain by 1/8th turn. Now the gain should be close to matched. Take a listen to several CD’s of different style music and verify that the volume levels desired can be achieved without any audible distortion. If so, you are done. It is important to note that in head units with higher voltage preamps (we recommend >4 volts) full volume (100%) of the source unit will be possible as well as full potential of the amplifier at verylow gain. The less gain utilized the less opportunity for noise to enter the system.
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Your new Vector amplifier system is equipped with adjustable high-pass and lowpass crossovers. In order to set the crossover properly we must understand the job it performs. A crossover determines which frequencies a chosen speaker will reproduce.
If a speaker is in a ported enclosure tuned to 35Hz, but the signal to speaker is carrying frequencies of 10Hz – 200Hz the subsonic filter should be set to 35Hz to eliminate all frequencies lower than 35Hz. This is recommended for all applications utilizing ported boxes. Correct use of the subsonic filter will improve subwoofer efficiency and reduce the possibility of overdriving the woofer. In this situation many would adjust the bass at the source unit. However, this would remove bass from the whole bandwidth producing poor sound quality. This action is not recommended. Low-pass filters work in a similar fashion except they allow all frequencies lowerthan the one selected pass through to the speaker. Here is the example: If a subwoofer has a frequency response of 28Hz – 150Hz and your other speakers are crossedover at 100Hz you will find that this crossover setting will be very similar. Using the same musical track as before at medium-high volume slide the crossover selector to low-pass, and slowly turn the frequency selector counter-clockwise (lower in frequency) until all vocals and audible distortion are eliminated. Test the system at 90% of full volume to check if sound continues to be distortion free. If it does the setting is correct. With correct crossover settings your subwoofer should blend seamlessly into your midrange providing you with full bandwidth with excellent fidelity.
Utilizing the Remote Bass Control: Included with your Vector amplifier system is a Remote Bass Control. This RBC allows you to have subwoofer control from the driver’s seat. An important note is that the RBC is not a master gain you will still have to go through the process of setting the gain at the amplifier for optimum results. To use, plug the RBC cable (supplied with the amp and RBC) into the terminal marked “REMOTE” on the amplifier. Once this is done, begin routing the cable to the location you wish to mount the RBC. Using the supplied bracket mount the RBC. Continue routing the cable (away from all moving linkage and sharp edges.) and finish by plugging the remaining end into the Remote Bass Control. When the system is active the blue led on RBC should light up, test the function and you have completed the installation of your Remote Bass Control. This completes the amplifier installation. If you have any questions or concerns contact your local authorized dealer or call Oz Audio Technical Support at 561-998-0211. 11
