DB Drive Okur A7 Series A71100.1 User manual

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A7 75.4 A7 125.4 A7 300.2
A7 750.1 A7 1100.1 A7 1500.1
A7 2000.1 A7 2500.1
User Manual
Installation Instructions/Owner’s Manual
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DUE TO CONTINUOUS IMPROVEMENT OF THE PRODUCT THE SPECIFICATIONS ARE SUBJECT TO CHANGE WITHOUT NOTICE.

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1. OKUR AMPLIFIER’S SPECIFICATION
1-1. OKUR DIGITAL MONOBLOCK AMPLIFIERS
Load Voltage & THD A7 750.1 A71100.1 A7 1500.1 A7 2000.1 A7 2500.1
4ohm 14.4 volts & 1% 1 X 175 1 X 225 1 X 375 1 X 740 1 X 1300
2ohm 14.4 volts & 1% 1 X 375 1 X 550 1 X 750 1 X 1300 1 X 2350
1ohm 14.4 volts & 1% 1 X 750 1 X 1100 1 X 1500 1 X 2200 1 X 4300
Working Voltage 8.5~16 Volts
Frequency Response 20Hz ~ 250Hz
Signal to Noise Ratio < 100dB
Damping Factor 250 <
Low Level Input 6V ~ 0.2V
Low Pass Filter Variable 35Hz ~ 250Hz
(@ 24dB Slope)
Bass Boost @ 45Hz Variable 0 ~ 9dB
Subsonic Filter
(@ 24dB slope) Variable 10Hz ~ 50Hz
Phase Shift Variable 0 ~ 180 degree
Master/slave (Linkable) Yes
Remote Level Control Yes
RCA line Output Yes
Minimum working impedance 1 ohm for single unit
2 ohm for linked
1-2. OKUR 2 AND 4CHANNEL CLASS AB AMPLIFIERS
Load Voltage & THD A7 75.4 A7 125.4 A7 300.2
4ohm 14.4 volts & 1% 4 X 60 4 x 110 2 x 300
2ohm 14.4 volts & 1% 4 x 90 4 x 170 2 x 450
4ohm bridged 14.4 volts & 1% 2 x 180 2 x 340 1 x 600
Frequency Response 20Hz ~ 30KHz
Signal to Noise Ratio 105dB
Damping Factor 200 <
Low Level Input 6V ~ 0.2V
High Pass Filter Variable 50Hz ~ 5KHz
( @ 18dB Slope )
Crossover Selector HP-FULL-LP / BP
Low Pass Filter Vairable 50Hz ~ 500Hz
( @ 18dB Slope )
Bass Boost @ 45Hz Variable 0 ~ 18dB
Input Mode Selector CH2 - CH4
Remote Level Control Yes
RCA line Output Yes
Minimum working impedance 2 ohm stereo or 4 ohm mono.
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INPUT
Connect RCA output cables from the headunit to
OKUR digital amplifiers’ RCA Input.
OUTPUT
Is used when connecting multiple amplifiers
POWER & PROTECTION INDICATOR
Power LED - Green-lit shows normal operation
Protect LED - RED-lit shows general malfunction,
faulty connection or thermal protection
GAIN (6V ~ 0.2V)
Matching the output voltage of the headunit’s RCA
line-outs to OKUR amplifiers’ input section.
SUBSONIC FILTER (10Hz ~ 50Hz @ 24dB/Oct)
Control the high Pass point for the speaker outputs
to eliminate extreme low frequencies that can
damage your subwoofers.
BASS BOOST (0~9dB @ 45Hz)
It boosts the bass 0 ~ 9dB
REMOTE LEVEL CONTROL PORT
This port is for connecting remote gain level control.
LOW PASS FILTER (35Hz ~ 250Hz @ 24dB/Oct)
Controls the low pass point for the speaker outputs.
PHASE (0 ~ 180 degree)
It controls phase from 0 ~ 180 degree
OUTPUT MASTER / INPUT SLAVE
OUTPUT MASTER / INPUT SLAVE connection makes
OKUR digital amplifiers as daisy chain connection
to 2 ohm.
+12V (POWER CONNECTION)
This must be connected to the fuse positive terminal
(+12V) of the battery.
Recommended wire is 4 gauge for A7750.1 &
A71100.1 and 0 gauge for A71500.1, A72000.1,
A72500.1 check the battery voltage
GND ( GROUND CONNECTION )
It is connected to the Negative or ground cables of
the Vehicle.
Recommended wire is 4 gauge for A7750.1 &
A71100.1 and 0 gauge for A71550.1, A72000.1,
A72500.1
REM (REMOTE)
It is connected to switched +12V with a Trigger cable
coming from the head unit
SPEAKER OUTPUTS
It connects amplifier’s terminals to subwoofer
speakers.
Minimum speaker wire is 12 gauge.
Minimum impedance is 1 ohm for single unit.
Linked connection’s minimum impedance is 2 ohm.
2. OKUR AMPLIFIER’S CONTROL & CONNECTION.
2-1. OKUR DIGITAL MONOBLOCK AMPLIFIERS
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INPUT
Connect the RCA output cables from the headunit to
OKUR amplifiers’ RCA Input.
POWER & PROTECTION INDICATOR
Power LED - Green-lit shows normal operation
Protect LED - RED-lit shows general malfunction,
faulty connection or thermal protection
GAIN (6V ~ 0.2V)
The gain control matches the voltage of the
headunit’s RCA line-outs to OKUR amplifiers’ input
section.
HIGH PASS FILTER (50Hz ~ 5KHz @ 18dB/Oct)
Controls the high pass point for the speaker outputs.
CROSSOVER SELECTOR
Selectable @ HP-FULL-LP / BP
LOW PASS FILTER (50Hz ~ 500Hz @ 18dB/Oct)
Controls the low pass x-over point for the speaker
outputs.
BASS BOOST ( 0~18dB @ 45Hz )
Variable @ 0 ~ 18dB
MODE (CH2 / CH 4)
Selectable input setting
REMOTE LEVEL CONTROL PORT
This port is for connecting the remote gain level control.
OUTPUTS
Is used when connecting multiple amplifer to the
same RCA signal
GND ( GROUND CONNECTION )
It is connected to the Negative or ground cables of
the Vehicle.
Recommended wire is 4 gauge for A7300.2 ,
A775.4 & A7125.4
REM ( REMOTE )
Connected to switched +12V remote cable from the
head unit.
+12V ( POWER CONNECTION )
This must be connected to a fused positive terminal
(+12V ) of the battery.
Recommended wire is 4 gauge for A7300.2 ,
A775.4 & A7125.4
FUSES
Protect the amplifiers power supply from any shorts.
Any use of overvalued fuses will void all warranty.
SPEAKER OUTPUTS
The minimum recommended speaker wire is 12 guage.
The minimum impedance is 2 ohm stereo or 4 ohm
mono.
2-2. OKUR 2 AND 4CHANNEL CLASS AB AMPLIFIERS
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3. INSTALLATION
In case you install the OKUR amplifiers by yourself, please read owner’s manual very carefully. Before you
start your installation, please take all steps into consideration. or, you can have DB Drive or DB Reseach’s
authorized dealer to check installation and set your car audio systems.
3-1. MOUNTING PREPARATION
Disconnect the negative ( - ) battery cable before mounting your OKUR amplifier or making any connections.
Check the battery and alternator ground ( - ) connections. Make sure they are properly connected and Free of
corrosion before selecting a mounting location. Please take some concerns into consideration with cooling
efficiency and safety.
3-2. MOUNTING PREPARATION
The OKUR amplifier uses a specially designed heat radiation heatsink to avoid excessive heat from OKUR
circuitry. But for better heat dissipation, It is good to find the mounting location where you can install OKUR
vertically with the heatsink fins and better air flow around heat sink.
For the safety, you have to find a dry and well ventilated location and make sure any cables and drilling car
equipment are not interfere with mounting location. Be sure the mounting location and drilling of pilot cables
will not present a hazard to any cables, control cables, fuel lines, Fuel tanks, hydraulic lines or other vehicle
systems or components.
3-3. +12V, GND, REM CONNECTION
12V ( POWER CONNECTION )
Before mounting Platinum series, disconnect the negative ( - ) wire from battery to protect any accidentIal
damage to amplifier and audio system. A775.4 , A7 125.4, A7 300.2 ,A7 750.1 ,A7 1100.1 and A7 1500.1
are designed to use minimum 4 gauge power and ground cables A7 2000.1, A7 2500.1, are designed to
use minimum 0 gauge cables.
Connect the power cables to power terminal labeled as + 12V. A775.4, A7 125.4, A7 300.2, A7 750.1,
A7 1100.1 and A7 1500.1 have built-in fuses. A7 2000.1, and A7 2500.1 are not euipped with fuses so
you need to install external fuses.
In order to install external fuses, connect one end of fuse holder to the power cable and the other end of
fuse holder to positive battery within 18in of the same cable gauge. This fuse location will protect the system
and the vehicle against the possibility of a short circuit in the power cable. Be sure to use fuses and fuse
holders adequate for the current draw application.
GND ( GROUND CONNECTION )
Locate a secure grounding connection as close to platinum series as possible. Make sure the location is
clean and provides a direct electrical connection to the frame of the vehicle.
Connect one end of a short piece of the same gauge cable as the power cable to the grounding point.
Run the one end of the cable to the grounding point.
Run the other end of the cable to the mounting location.
Connect the ground cable to the screw terminal labeled as GND.
REM ( REMOTE CONNECTION )
Run a remote turn on cable from the head units remote switched + 12V output.
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OKUR +12V, GROUND, REMOTE CONNECTION DIAGRAM
Remote turn on
12V
Ground
BATTERY
8~ 1 ohms
3-4. SPEAKER CONNECTION
DB Drive recommends to use minimum 12 gauge speaker connecting cables. Run 12 gauge speaker
connecting cables from your speakers to OKUR amplifier’s mounting location.
Keep speaker cables away from power cables and OKUR amplifier’s input cables. Use grommets anywhere
the cables have to pass through the holes in the metal frame or sheet metal. Connect to the speakers
according to the type of terminals on each speaker. Strip 3/8” of insulation from the end of each cable and
twist the cables strands together tightly. Make sure there are no stray strands that might touch other cables
or terminals and cause a short circuit.
Crimp spade lugs over the cable ends or tin the ends with solder to provide a secure termination.
Connect the cable ends to Platinum series amplifiers as speaker system diagram.
OKUR DIGITAL AMPLIFIERS’ SPEAKER CONNECTION DIAGRAM 1.
A7750.1, A71100.1, A71500.1, A72000.1, A72500.1 amplifiers
minimum impedance is 1 ohms. Linked minimum impedance is 2 ohms.
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OKUR AMPLIFIERS’ SPEAKER CONNECTION DIAGRAM 2.
OKUR 4CHANNEL AMPLIFIERS’ SPEAKER CONNECTION DIAGRAM 1.
A7300.2, A775.4 & A7125.4 Amplifiers’ minimum impedance is
2 ohms stereo or 4 ohm mono
8~ 2 ohms
8~ 2 ohms
8 ~ 2 ohm 8s ~ 2 ohm s
8 ~ 2 ohm 8s ~ 2 ohm s
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WORLD RECORD BREAKING TECHNOLOGY
OKUR 4CHANNEL AMPLIFIERS’ SPEAKER CONNECTION DIAGRAM 2
OKUR 4CHANNEL AMPLIFIERS’ SPEAKER CONNECTION DIAGRAM 3.
8 ~ 2 ohm 8s ~ 2 ohm s
8 ~ 2 ohm 8s ~ 2 ohm s
8~ 4 ohms
8~ 4 ohms
8 ~ 2 ohm s
8 ~ 2 ohm s
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MASTER AMPLIFIER
SLAVE AMPLIFIER
LR
Headunit
3-5. OKUR DIGITAL AMPLIFIER’S MULTI-LINKING CONNECTION
Multi-linking connection allows linking of 2 digital amplifiers to work as 1.
Please read the following connection diagram cautiously to ensure the correct connection.
Step 1. Connect the master amplifier to the head-unit and set its output master and input slave switch to
output master position.
Step 2. Connect the master and slave amplifiers in daisy chain RCA jack as shown in the diagram.
Step 3. Set slave amplifier output master & input slave switch to slave input position.
Step 4. Connect speaker cable ( + ) on master amplifier to subwoofer ( + )
Step 5. Connect speaker cable ( + ) on slave amplifier to subwoofer ( - )
Step 6. Connect speaker cable ( - ) on master amplifier to speaker cable ( - ) on slave amplifier
A7750.1, A71100.1, A71500.1, A72000.1 & A72500.1 Amplifiers’
Linked minimum impedance is 2 ohms.
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WORLD RECORD BREAKING TECHNOLOGY
Remote turn on
12V
Ground
BATTERY
Ground
MASTER AMPLIFIER
SLAVE AMPLIFIER
8 ~ 2 ohm s
A7750.1, A71100.1, A71500.1, A72000.1, & A72500.1 Amplifiers
Linked minimum impedance is 2 ohms.
Headunit
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4. TROUBLE SHOOTING
NO SOUND ( NO OUTPUT )
1) Please check all connections, cables’ rounting, short and voltage at OKUR amplifiers and headunit.
2) Please check built-in or external fuses ,If it is brown, please replace with new one.
3) Please check whether speakers work well, you can test speakers by connecting to another amplifier.
PROTECTION
1) Please check overload, overheat ( thermal ), short, voltage and DC offset.
2) Minimum working impedance for 2 and 4 channel amplifiers is 2 ohm stereo or 4 ohm mono
minimum working impedance for all Class D mono amplifiers is 1 ohm for single unit and 2 ohm for
linked operation.
3) If the OKUR amplifiers are shut down due to overheat, Reset by turning off the remote input and allowing
time to cool down.
Please make sure there are no airflow obstructions around OKUR amplifiers to prevent thermal
protection.
4) A7 750.1, A7 1100.1, A7 1500.1, A7 2000.1 and A7 2500.1 have voltage protection as 8.5V~16V
If Voltage is out of range as above, Platinum series amplifiers will be protected.
POOR BASS RESPONSE
1) Please check speaker polaritys.
WHINING NOISE
1) Engine noise is caused by poor grounding of OKUR amplifiers, headunit, other components, battery or
alternator, so please check all grounding connections.
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LIMITED WARRANTY
DB DRIVE warrants the OKUR amplifiers for a period of 1 year from
the date of original sales invoice. This warranty applies to the original
purchase only. The OKUR amplifiers must be purchased directly from an
authorized DB Drive dealer or DB Research.
This limited warranty does not extend to units that have been subjected
to misuse, abuse, neglect, or accident. Products that in DB DRIVE’s
judgment shows evidence of having been altered, modified, abused or
serviced without DB DRIVE’s authorization, will be ineligible under
this warranty.
The original sales invoice must be presented at the time any warranty
claim is made. All OKUR amplifiers returned for warranty will be inspected
before any warranty agreement is issued.
For anyquestions about the warrantyservice please contact DB Research.
DB Research L.L.P.
302 Hanmore Industrial Parkway // Harlingen, TX 78550
ph: 877.787.0101 // www.dbdrive.net