Lanzar Car Audio SX7 User Manual

SX7

electronic crossover

© 1999 Lanzar Audio Inc.

owner’s manual

troubleshooting

SX7

electronic crossover

If you experience....

Electronic crossover does
not turn on.

Level of sound is low.

Background noise is
too high.

Check that:

• Remote Turn-On wire has 12V

• 12V wire has 12V

• Ground wire is properly connected

• Wiring is not loose or cables
misconnected/disconnected

• RCA cables are not faulty

• Wiring is not loose or cables
misconnected/disconnected

• RCA cables are not faulty

precautions

Enjoy your system, but use it wisely and safely!

• Never drive with the volume raised so high you cannot hear what is occuring in traffic
around you.

• Be aware that repeated exposure to excessive volume levels can permanently damage

your hearing!

• Keep all electronics away from moisture, dust, extreme heat or extreme vibrations.

• Lanzar Audio products are capable of sound pressure levels in excess of 150 dB.

Continuous exposure to sound pressure levels over 100 dB may cause permanent
loss of hearing. Use common sense and PRACTICE SAFE SOUND.

9

system diagram

SX7

electronic crossover

3-Way system application using the SX7

Head unit (Stereo, CD Player, Tape Deck, etc.)

SUBWOOFER

SX7

power

Lanzar Vibe SX7 Electronic Crossover

.

.

.

.

phase

.

.

.

400

32

freq

32

max

min

freq.

Gain

MIDRANGE HIGH RANGE

.

.

.

.

.

.

.

400

Rear Panel

min

Gain

32

max

freq.

HIGH

LR

400

min

OUTPUT

LR

.

.

.

.

.

.

.

max

Gain

Left and Right
Line Inputs

MID

LOW

LR

Left and Right
Line Outputs
from Head Unit

+12 Rem Gnd

INPUT

LR

Fuse: 1A

to Ground (Black)
to Remote On

(Orange)
to +12v Battery

(Red)

8

HIGH CHANNEL
Power Amplifier

–+

HIGH RANGE

Speakers

MID CHANNEL
Power Amplifier

–+

–+

MID RANGE

Speakers

–+

LOW CHANNEL

Power Amplifier

–+

LOW RANGE

Speakers

–+

owner’s manual

contents

SX7

electronic crossover

Congratulations

Features

Specifications

Controls and Displays

Operation

Installation

Wiring Directions

System Diagram

Troubleshooting and Precautions

Limited Warranty

2

2

3

4

5

6

7

8

9

10

1

features

SX7

electronic crossover

Thank you for choosing
Lanzar Audio, and
congratulations on joining
a select group of dedicated
enthusiasts committed to
the very best in mobile
sound performance and
dependability.

You are now the proud
owner of one of the world’s
most sophisticated
electronics components.
This Lanzar product is the
result of an extensive
engineering program with
the sole purpose of creating
the finest mobile audio
experience imaginable.
We’re confident that this
product will provide you
with many years of
outstanding musical
entertainment.

• 6 Channel Outputs (Sub, Mid, High)

• Infinitely Adjustable Crossover Points

• Sub, Mid and High Gain Controls

• 2 Channel RCA Input Jacks

• Subwoofer Phase Shift Adjustment

• LED Power On Indicator

• 12dB per Octave Slope

• Fully Isolated DC-t0-DC Power Supply

• Remote Power On/Off

• Half-DIN Size Cabinet

• Mounts In or Under Dash

2

owner’s manual

wiring

SX7

electronic crossover

Electronic connections

Connect 12V DC from a constant battery source to a +12V slip-on spade terminal

11

and install a one (1) amp fuse in line.

Connect the SX7’s GROUND to a good chassis ground, near where the unit

2

is mounted, or to the case of the head unit.

Connect the SX7’s REMOTE TURN-ON lead to the remote turn-on lead of the

3

head unit, and install a 1/2 amp fuse in line. (A relay should be used if turning
on more than one component, such as EQ’s, crossovers or amplifiers.)

Connect stereo RCA cables from the head unit’s left and right front outputs

4

to the left and right inputs of the SX7.

Connect stereo RCA cables from the left and right Low, Mid and High outputs

5

of the SX7’s to the corresponding left and right inputs of your amplifiers.

Turn the unit on, and adjust the input gain on the SX7 to match the output

6

of the head unit (1/2, or at center position, is about 1 V). Be careful not to
overdrive the input of your amplifier(s) or signal processor(s). Use clip
detectors to adjust output.

Adjust each of the 7 rotary equalizer controls +/- 12 dB to acheive the desired

7

sound characteristics.

7

installation

SX7

electronic crossover

Installing your SX7 under the dash of your car

Please take the time to install your new
Lanzar Signal Processor securely, according
to this diagram, using the hardware provided.

4x 6 mm machine screw (4)

Dashboard

6

Mounting Bracket

4x12mm
self-tapping screw (2)

4 mm spring
washer (2)

Signal Processor enclosure

This Half-DIN size unit can also be installed in the
dash adjacent to the head unit, provided that there
is a slot available.

4 mm plain
washer (2)

owner’s manual

specifications

SX7

electronic crossover

Subwoofer Crossover Range
Midrange Crossover Range
High Pass Crossover Range

Frequency Response

Input Level

(for 400 mV Output)

Total Harmonic Distortion (THD)

(at 400 mV Output)

Output Impedance

Signal-to-Noise Ratio (S/N)

Separation

Current Drain

Power Supply Voltage

Dimensions,WxDxH (mm)

32 Hz to 400 Hz
32 Hz to 400 Hz
640 Hz to 8 KHz

20 Hz – 30 kHz

400 mV

< 0.01%

1.2 k-Ohm

90 dB

60 dB

250 mA Maximum

10 – 16 V Neg. Ground

7.0 x 6.25 x 1

(190 x 115 x 29 mm)

3

controls

SX7

electronic crossover

Front panel

32

freq

SUBWOOFER

.

.

.

.

400

min

Gain

.

SX7

power

4

Subwoofer Output Phase Switch

5

Midrange Frequency and Gain Controls

6

High Pass Frequency and Gain Controls

1

Power Switch

2

Power Indicator LED

3

Subwoofer Frequency
and Gain Controls

MIDRANGE HIGH RANGE

.

.

phase

.

.

max

.

32

freq

.

.

.

.

.

.

.

400

.

640

max

min

Gain

freq

.

.

.

.

.

.

.

.

8K

.

max

min

Gain

4

Rear panel

HIGH

LR

OUTPUT

MID

LR

7

Input Connectors

LOW

LR

+12 Rem Gnd

INPUT

LR

8

Power Connections

(+12V, Remote, Ground)

9

Low Outputs

10

Mid Outputs

11

High Outputs

owner’s manual

Control/Connector Function

operation

SX7

electronic crossover

1

Power Switch

2

Power Indicator LED

3

Subwoofer Frequency
and Gain Controls

4

Subwoofer Output
Phase Switch

5

Midrange Frequency
and Gain Controls

6

High Pass Frequency
and Gain Controls

7

Input Connectors

8

Power Connections

(+12V, Remote, Ground)

Used to turn power on and off to the SX7.

This LED is illuminated when the unit is
properly powered, grounded and the remote
power has been turned on.

The frequency control adjusts the range of
the signal delivered to the Sub channel. The
gain control adjusts the level of that signal.

This is used to reverse the phase of the
subwoofer channel to the other channels in
the system for proper signal alignment.

The frequency control adjusts the range of
the signal delivered to the Mids channel. The
gain control adjusts the level of that signal.

The frequency control adjusts the range of
the signal delivered to the Highs channel The
gain control adjusts the level of that signal.

RCA cables are used to connect the input
signal from a head unit or other source.

Connect to power source as follows:

+12v: Connect a red wire of at least 12 gauge to

the car battery or other power source.

GROUND: Connect a black wire of at least 12 gauge
to car chassis for ground connection.

9

Low Outputs

10

Mid Outputs

11

High Outputs

REMOTE: Connect an orange wire to remote
activating (12V DC) wire of car stereo or other
head unit.

RCA cables are used to connect the low
channel ouputs to the subwoofer amplifier
inputs.

RCA cables are used to connect the mid
channel ouputs to the midrange amplifier
inputs.

RCA cables are used to connect the high
channel ouputs to the high range amplifier
inputs.

5

warranty

CAR AUDIO

Quality

Quality

Technology

Technology

Performance

Performance

Limited Warranty Policy

All Lanzar Signal Processors are carefully constructed and thoroughly
tested before shipment. Units purchased in the USA are warranted
to be free of defects in material and workmanship for three (3) years
from the date of purchase. This warranty is limited to the original
retail purchaser of the Signal Processor.

Should the unit fail due to a factory defect in material or workmanship,
your unit will be repaired or replaced at the sole discretion of Lanzar.

To obtain warranty service, you must first call our Consumer Return
Hotline number at [phone] to obtain a Return Authorization
(RA) number. This RA Number must appear on the outside of your
package and on all paperwork relating to your return.

When returning the unit to us for warranty service, it must be
carefully packed and shipped prepaid to:

R.A. # ______________
Lanzar Service Center
1600 63rd Street
Brooklyn, NY 11204

You must also include the following items with your return:

• A copy of your sales receipt or other proof of purchase

• A brief letter indicating the problem you are experiencing with
the product

• Include in your letter your return address, daytime phone number
and RA Number

• Also include a check or money order for $15.00 for return shipping,
handling and insurance, or provide your VISA/MasterCard
number with expiration date.

Our obligation under this warranty is limited to the repair or
replacement of the defective unit when it is returned to us prepaid.
This warranty will be considered void if the unit was tampered with,
improperly serviced, or subject to misuse, neglect or accidental
damage.

All implied warranties of merchantability and fitness for a particular
purpose are limited in duration to the length of the warranty. Lanzar
expressly disclaims any liability for incidental or consequential
damages caused by product defects. This warranty does not cover
any expense incurred in the removal and/or reinstallation of the
Signal Processor. Lanzar’s total liability will not exceed the purchase
price of the Signal Processor.

Some states do not allow the exclusion or limitation of incidental or
consequential damages, or limitations on how long an implied
warranty lasts, so the above limitations and exclusions may not apply
to you. This warranty gives you specific legal rights, and you may
also have other rights which vary from state to state.

Lanzar Audio Inc.
1600 63rd Street, Brooklyn, NY 11204 [phone]