Lanzar OPTI Class-D User manual

OPTI OWNER'S MANUAL-1
1. Contents
2. Introduction
3. Features
4. 5. Specifications
6. Amplifier installation
7. 8. Features and controls
9. 10. 11. 12. System wiring
13. 14. Troubleshooting

OPTI OWNER'S MANUAL-2
Thank you for purchasing the Lanzar OPTI Class-D amplifier. Rest assured you have purchased a quality
product designed and engineered to give you many years of uncompromised musical service.
The OPTI Class-D amplifier has been designed using the latest in electronic technology available today.
This mono subwoofer amplifier is the result of advanced high speed switching technology that overcomes the
less-efficient classAB design. The OPTI Class-D amplifier reflects your true appreciation for powerful bass
reproduction in the mobile environment.
This amplifier is designed for low-frequency information only and it is not capable of reproducing any
mid/high-frequency information.
This is due to the noise introduced into the signal by the switching speed of the power supply, which must be
filtered out of the audio signal.
The power supply incorporated into OPTI amplifier is a DC to DC switching power supply designed to
have adequate headroom for even the most demanding peak and dynamic range found on today's Cds
and recording.

OPTI OWNER'S MANUAL-3
Low - frequency information for subwoofer only.
High efficient power
Stiffly regulated PWM power supplies.
MOSFET switches maintain rated power over a wide range of battery voltages.
Adjustable from 50Hz to 150Hz with a slope of 24dB per octave.
This allows for the adjustment of the upper point of the frequency bandwidth
and the respective subwoofer.
Adjustable from 15Hz to 40Hz with a slope of 24dB per octave.
This allows for the attenuation of frequencies that are mostly inaudible and
cause unnecessary strain on the amplifier.
CLASS-D DESIGN
POWER SUPPLIES
LOWPASSFILTER
Protection against thermal, Overload and short circuit conditions.
This amplifier come complete with a compact remote GAIN CONTROLLER
which can be conveniently mounted on or under the dashboard of your car.
PROTECTION CIRCUITRY
REMOTE DASH-MOUNT GAIN CONTROL
VARIABLE SUBSONIC FILTER
COOLING FAN

OPTI OWNER'S MANUAL-4
90dB
15Hz to 150Hz (+/-3dB)
400
50Hz~150Hz, 24dB/Octave
15Hz~40Hz, 24dB/Octave
0~+18dB
200mV to 8V
10K Ohm
100 Ohm
10.08" x 2.12" x 14.96"
30A x 4
0 to 180
800W MONO
1000W MONO
1300W MONO
0.1%
OPTI 1400D
500W MONO
2600W MONO
N/a
90dB
15Hz to 150Hz (+/-3dB)
400
50Hz~150Hz, 24dB/Octave
15Hz~40Hz, 24dB/Octave
0~+18dB
200mV to 8V
24K Ohm
100 Ohm
10.08" x 2.12" x 17.91"
30A x 5
0 to 180
800W MONO
1200W MONO
1900W MONO
0.1%
OPTI 1500D
500W MONO
4200W MONO
N/a
90dB
15Hz to 150Hz (+/-3dB)
400
50Hz~150Hz, 24dB/Octave
15Hz~40Hz, 24dB/Octave
0~+18dB
200mV to 8V
10K Ohm
100 Ohm
10.08" x 2.12" x 12.59"
30A x 3
0 to 180
650W MONO
900W MONO
1000W MONO
0.1%
OPTI 1000D
350W MONO
2000W MONO
N/a
Signal-to-Noise Ratio, below rated power output
Frequency Response, at 1 Watt, 4 Ohm
Damping Factor at 20Hz, 4 Ohm
Low Pass Filter
Variable Subsonic Filter
Variable Bass Boost Control
Phase Shift Control
Input Sensitivity
Input Impedance
Line Output Impedance
Dimensions(Inches)
Fuse Rating
RMS Power, INTO 2 Ohms
RMS Power, INTO 1.3 Ohms
MAX Power, INTO 1.3 Ohms
MAX Power, INTO 0.5 Ohms
THD at 1 Watt, 4 Ohm
RMS Power, INTO 4 Ohms
BRIDGE MAX Power, INTO 2 Ohms

1. Find a suitable location in the vehicle to mount the amplifier.
2. Make sure there is sufficient air flow around the intended mounting location.
3. Bolt the amplifier to the mounting surface.
4. Connect the power ground terminal to the nearest point on the chassis of the
car. Keep this ground wire less than one meter (39") in length. Use 4 gauge wire.
5. Connect the remote terminal to the remote output of the head unit using 14 gauge.
6. Connect an empty fuse holder within 300mm (12") of the battery and 4 gauge
or larger high quality cable from this fuse to the amplifier location.
7. Make sure there is no fuse in this fuse holder. Then make the connection to the "BATT"
connection on the amplifier.
8. If multiple amplifiers are being used, use cables (each with its own fuse at the battery)
or a #0 or a #2 cable from the fuse holder at the battery to a distribution
block at or near the amplifier's location.
9. Connect all line inputs and outputs using high-quality RCA-RCA cables.
10. Insert fuse(s) at the battery fuse holder(s).
11. Recheck all connections before powering up.
12. Set all level controls to their least sensitive positions and set all crossover controls, switches,
etc. to the desired frequency or position.
13. Once the system is powered up, set the volume control on the head unit to about the
2 o'clock position, and then set all the amplifiers' level controls for maximum output level.
14. Further fine tuning of the various controls may be necessary to obtain the desired results.
OPTI OWNER'S MANUAL-6

InputLine out
Min Max 15 40 15050 0dB 18dB 0180
Phase
Bass
Boost
Low
PassLevel Speaker
Pwr
Prot
L
R
Data Link
Slave
Master
Mode
Sub
Sonic
0180 15050 0dB 18dB
Min Max 15 40
Subsonic Bass
Boost
Level
InputLine out
L
R
Remote
Power
Protection
Phase
Shift
Low
Pass
Data Link
Slave Master
Bridged Mode
OPTI OWNER'S MANUAL-7
OPTI 1 1400D/2000D000D/
1258
347
6
910
12
6
3457
9
10
11
OPTI 1500D/1900D

OPTI OWNER'S MANUAL-8
9. Power & Protection Indicators- Provide instant information on status of amplifier,
including short-circuit and thermal overload alerts.
7. Bridged Mode
8. Bass Boost Remote Control Input
1. Line Out RCA Jacks - The LINE OUT allows you to build multiple amplifier systems
with out having to use splitter cords to distribute the signal. Now it is simple a matter of
bringing one set of RCAs into the first amplifier, then using the line out RCA jacks as the
feed to the next amplifier.
2. Input RCA Jacks - These inputs are for signal cables from the source.
Always use high quality shielded RCA cables.
3. Level Control- Enables the matching of input levels to the output levels from
the head unit(or other signal source).
4.Variable Subsonic Filter-15Hz~40Hz
6. Phase Shift control -Allows you to change the phase of your subwoofer from 0 to 180 degrees
to help compensate for timing differences between drivers.
5.Variable Low Pass Filter- When Crossover Mode Selector is in Low Pass Mode, this control
limits the frequencies which will be distributed to the speakers to those below the value
to which this is set within the range 50~150Hz.
10. Variable Bass Boost Control- 0~18dB.
11. Speaker

InputLine out
Min Max 15 40 15050 0dB 18dB 0180
Phase
Bass
Boost
Low
PassLevel Speaker
Pwr
Prot
L
R
Data Link
Slave
Master
Mode
Sub
Sonic
OPTI OWNER'S MANUAL-10
B+ REM GND
Power
Fuses
SUBWOOFER
SPEAKER IMPEDANCE 1~8 Ohm
TO OUTPUT FROM HEAD UNIT
TO REMOTE GAIN CONTROLLER
OPTI 1500D/1900D
TO CAR STEREO AUTO ANTENNA
CHASSIS GROUND
(BARE METAL)
FUSE
30A x 5
30A x 5
FUSES
Fuse Rating
OPTI 1500D
OPTI 1900D
MODEL

InputLine out
Min Max 15 40 15050 0dB 18dB 0180
Phase
Bass
Boost
Low
PassLevel Speaker
Pwr
Prot
L
R
Data Link
Slave
Master
Mode
Sub
Sonic
InputLine out
Min Max 15 40 15050 0dB 18dB 0180
Phase
Bass
Boost
Low
PassLevel Speaker
Pwr
Prot
L
R
Data Link
Slave
Master
Mode
Sub
Sonic
OPTI OWNER'S MANUAL-12
Slave Amp
BRIDGING TWO AMPLIFIER
SPEAKER IMPEDANCE
2 Ohms!
Bridging two amplifiers can be done only between two amplifiers of the same model number.
30A x 5
30A x 5
FUSES
Fuse Rating
OPTI 1500D
OPTI 1900D
MODEL
Master Amp
(BRIDGED SWITCH : MASTER POSITION)
(BRIDGED SWITCH : SLAVE POSITION)
Slave
Master
Slave
Master

OPTI OWNER'S MANUAL-13
Before removing your amplifier, refer to the list below and follow the
suggested procedures. Always test the speakers and their wires first.
Check for good ground connection.
Check that remote DC terminal has at least 13.8v DC.
Check that there is battery power on the +terminal.
Check all fuses.
Check that Protection LED is not lit. If it is lit, shut off amplifier briefly
and then repower it.
Disconnect all RCA inputs to the amplifier(s)-if hiss / noise disappears, then plug
in the component driving the amplifier and unplug its inputs. If hiss / noise
disappears, go on until the faulty / noisy component is found.
It is best to set the amplifier's input level as insensitive as possible. The best
subjective S/N ratio is obtainable this way. Try to drive as high a signal level from the
head unit as possible.

OPTI OWNER'S MANUAL-14
Check for shorts on speaker leads.
Check that the volume control on the head unit is turned down low.
Remove speaker leads, and reset the amplifier. If the Protection LED still comes
on, then the amplifier is faulty.
Check that the minimum speaker impedance for that model is correct.
Check for speaker shorts.
Check that there is good airflow around the amplifier. In some applications, an
external cooling fan may be required.
Check that the Level control(s) is set to match the signal level of the head unit.
Check that all crossover frequencies have been properly set.
Check for shorts on the speaker leads.
This is always caused by a poorly-grounded RCA patch cord.

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