Lanzar VCT2020 User guide

36Watts 2 Channel High Power MOSFET Amplifier

with Protection LED Indicator

You have purchased a quality product designed and engineered to give you many years of uncompromised
musical service. Lanzar Vector ampliers are designed with the lates technology available, which provides
headroom for even the most demanding peaks and dynamic ranges found on modern CD's and recordings.

TABLE OF CONTENTS

Features and Specications

Electrical Connections

Stereo/Mono Input Connections

System Wiring Speaker Connections

Mounting and Installation

Protection Circuitry and Troubleshooting

Precautions

PLEASE READ THE FOLLOWING INSTRUCTIONS CAREFULLY

AND KEEP THIS MANUAL IN A SAFE PLACE FOR FUTURE REFERENCE.

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Features and Specications

Crossover Mode Selector: When used with neutral, full range system, set this switch to "FULL". lf you wish to use the
internal crossover to power a driver or specic frequency range, use the "LPF" or "HPF' for the "L0WPASS" or "HIGH-

PASS" settings.

Input Level Controls: Enables the matching of input levels to the output levels from head unit (or other signal source).

The input sensitivity of adjustment ranges from 6V to 200mV.

Crossover Frequency Control: When crossover mode selector is in HIGHPASS mode, this cantrol sets the lower
frequency limit for audio program sent to the speakers. When crossover mode selector is in LOWPASS mode, this
control sets the upper frequency limit for audio program sent to the speakers. The crossover is continously variable
adjustment from 40 to 250Hz.

Bass Boost Selector: This selector switch permits the bass level an increase of 18dB.

Low Level Input: This amp features RCA type jacks for high impedance input. Use these with car stereo input which

uses RCA type connector cables.

High Level Input: If your car stereo jacks are not RCA type output, use the high-low level input adaptor to connect the
speaker output leads of car stereo and the RCA input jacks of amp.

AUX Line Outputs: This amp features RCA jacks for AUX line outputs. Use these for unlimited system expansion to the
next amplier.

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Power LED: This indicator is illuminated in Green when power is applied.

Protection LED: This indicator is illuminated in Red when the built-in protection circuitry is activated.

Power Fuse: The fuse protects the amplier and your car's electrical system from short circuit conditions.

Power Terminals: Use these connectors to deliver power, ground, and remote turn-ON control to the amplier.

Speaker Connectors: These terminals are guarantee high conductivity and minimum signal loss.

Features:

• Slim Size Amplier Design For Easy Installation

• Thermal / Overload / Short Circuit Protection

• Soft Turn On/O

• Power & Protection LED Indicator

• Low-Level RCA Input: 20K Ohms

• Line Level RCA Output

• MOSFET Power Supply

What's in the Box:

• 2-Channel High Power Amplier

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Technical Specs:

• Construction Material: Aluminum Badge, Aluminum Heatsink

Iron End Panels

• Variable Hi-Pass: 40 Hz-250 Hz

• Variable Low-Pass: 40 Hz-250 Hz

• Variable Input Level (Gain) Control: 6V-200mV

• Bass Boost Switch:0-18dB

• 36W x 2 @ 4 Ohms, 14.4V

• 2 Ohm Stable

• Frequency Response: 15 Hz-30K Hz

• Signal to Noise Ratio: >95dB

• THD:0.1 %

• 2x20 Amp Maxi Type Fuse

• Dimensions: 10.63''W x 1.78''H x 7.48''

Controls

Low level inputs

AUX line inputs

Input level control

Power Terminals

Power/protection LED

Crossover frequency control
Crossover mode selector

Bass boost selector

Speaker connections

Power fuse

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Electrical Connections

Stereo/Mono Input Connections

Using LOW Level Inputs

12V battery

Head unit

To remote turn-ON

+12V

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L/R Audio

Outputs

Head unit

Using HIGH Level Inputs

Head unit

LL RR

From speaker terminals

Mono Input Connections

Using LOW Level Inputs

to a second

amplier

High Level

Input Adaptor

Y Adaptors

Another

Amplier

Head unit

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Using HIGH Level Inputs

Head unit

LL RR

High Level

Input Adaptor

From speaker terminals

System Wiring Speaker Connections

Stereo Output Mode

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High Level

Input Adaptor

LEFT Speaker

2-4 OHMS

Another

Amplier

RIGHT Speaker

2-4 OHMS

Bridged Mono Output Mode

MINIMUM SPEAKER

Speaker

IMPEDANGE 4 0HMS!

Mounting and Installation

Your new Lanzar Vector Amplier comes complete with all required mounting hardware. When determining a suitable

location in your vehicle for the amp, please remember that it is a high-power electronic device capable of generating

high heat.

For this reason, always choose a location in your vehicle which has low vibration, adequate ventilation,

a minimum of dust, and no moisture. Be sure to mount the amp in such a manner as to allow reasonable air ow

over the cooling ns.

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Mark the location for the mounting screw holes by positioning the amp where you wish to install it and use a scribe

(or one of the mounting screws) inserted in each of the mounting holes to mark the mounting surface.

If the mounting surface is carpeted, measure the hole centers and mark with a felt tip pen.

Before attempting to drill the mounting holes, take note of any wires, lines or other devices in your vehicle

which may be Iocated behind the mounting surface! Then drill pilot holes in the mounting surface for the mounting

screws and insert them. Tighten the screws securely.

When making electrical connections to your amplier, please observe the following:

• Use at least 8 gauge wire for power and ground connections.

• Wire the amplier directly to the car battery.

• For the ground connection, use the shortest possible wire to a good chassis ground point.

• Wire the remote connection to the auto start lead of your head unit, equalizer or power antenna.

About Power Fuses:

Lanzar Vector ampliers feature built-in fuse systems. These fuses protect both the amplier and electrical system in

your vehicle from fault conditions. If you ever need to replace the fuse in your amplier, use a fuse of exactly the same

type and rating. A dierent type or rating may result in damage or re.

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Troubleshooting

PROTECTION CIRCUITRY

The built-in protection circuitry in the Lanzar Vector Series ampliers will disable the amplier if it senses an input
overload, a speaker short circuit, or extreme temperature conditions.
When the protection circuit is activated by any of these conditions the Protection LED will be illuminated.
lf this occurs carefully inspect the system to determine the source of the problem.

• lf the shutdown was a result of a thermal overload condition, allow the amplier to cool down before attempting to

restart it.

• lf the shutdown was a result of an input overload, or speaker short circuit, be sure to correct the condition before

restarting. The amplif ier can be restarted by turning the remote power OFF and then ON again.

No Output

Conrm that all terminal strip connections are secure and tight. Check both in-line and built-in fuses. Both the +12V
and the remote terminals must have +12V referenced to chassis ground. Conrm that the audio signal source (car radio,
equalizer, etc.) is connected and is supplying output signal. To check if the amp is supplying signal, unplug the cables
from the signal source (but leave them plugged into the amp.) Briey tap the center pin of each of the disconnected
RCA plugs with your nger. This should produce a noise (feedback) in your speakers.

Only once channel works

Conrm that all terminal strip connections are secure and tight. Check the balance control on the head unit (or other
source) to verify that it is set to its midpoint. If you are using the Low Level RCA input, reverse the input plugs at the
amplier (i.e., switch the L with the R). If the channels which is silent switches to the other side, the problem is either in
the head unit/other source or the connecting cables.

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Weak Output

Readjust the input level control(s) to better suit the input signal.

Noise in the Audio

If the noise is a “whine” whose pitch follows the engine speed, conrm that the amplier and any other signal sources
(head unit, etc.) are properly grounded.

If the noise is a “clicking” or “popping” noise whose rate follows the engine speed, this usually means that the vehicle is
equipped with resistor spark plugs and wires, or that the ignition is in need of service.

Check the rounting of the speaker and input wires to make sure they are not adjacent to wires which interconnect
lights and other accessories.

If the above steps fail to improve or clear noise interference, the system should be checked by a professional mobile
audio installer.

Precautions

• Do not operate the amplif ier when it is unmounted. Attach all audio system components securely within the

automobile to prevent damage, especially in an accident.

• Do nor mount this ampiif ier so thatthe wire connections are unprotected. or in a pinched condltlon or likely to be

damaged by nearby objects.

• Before making or breaking power connections in your system, disconnect the vehicle battery. Conrm that your

head unit or other equipment is turned o while connecting the input jacks and speaker terminals.

• If you need to replace the power fuse, do so only with a fuse identital to that supplied with the amplier.

Using a fuse of a dierent type or rating may result in damage that isn’t covered in the manufacturer’s warranty.

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2-Channel Amplier

(Operating in Stereo)

4 ohm

4 ohm

2-Channel Amplier

(Operating in

Bridged Mono)

4 ohm

Two 4-ohm speakers, wired in stereo, will present

a 4-ohm load to each channel of the amplier.

Most two-channel ampliers will work well in this

conguration.

4 ohm

Two 4-ohm speakers, wired in parallel to a bridged

two-channel amplier will present a 2-ohm mono

load to the amplier.

MOST TWO-CHANNEL AMPLIFIERS DO NOT SUPPORT

2-OHM MONO OPERATION! AMPLIFIER DAMAGE

COULD RESULT!

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Questions? Issues?

We are here to help!

Phone: [phone]

Email: [e-mail]