DB Research OKUR OA Series User manual

USER MANUAL
Installation Instructions | Owners Manual
AMPLIFIERS
4 CHANNEL
OA4200.4 PRO, OA4800.4PRO
OA SERIES
OKUR warrants any products purchased in the U.S.A.
from an authorized OKUR dealer. All products are warranted to
be free from defects in material and workmanship under normal
use and service for a period of one (1) year when the unit is
installed by an authorized OKUR dealer. Non-authorized
dealer installed products carry a one (1) year parts and labor limit
ed warranty. This warranty applies to the original purchase only.
OKUR will either repair or replace (as its option) any
unit that had been found to be defective and under warranty
provided the defect occurs within:
One (1) year, if purchased through an authorized OKUR
dealer with original proof of purchase.
This limited warranty periods do not extend to units having been
subjected to misuse, abuse, neglect, or accident. Products that in
OKUR’s judgment shows evidence of having been altered,
modified, or serviced without OKUR’s authorization, will be
ineligible under this warranty.
To obtain warranty services please contact your retailer or visit
our website at www.okurelectronics.com for more details.
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[e-mail]
LIMITED WARRANTY
TM
OA4800.4PRO
4 Channel Amplifier

proper use of this unit, please make sure to read the owner's manual carefully before
operating and keep it for future reference.
KEEP YOUR SALES RECEIPT
Take this time to attach your sales receipt to the manual and out in a safe place. In case
of any unforseen reason this product may need warranty service, your receipt will be
necessary to establish purchase date.
RECOMMENDATION
maximize the system’s overall performance. It is recommended that you have our
product installed by an authorized OKUR retailer. If you decide to install it yourself,
please carefully read through this manual and take your time to do a quality install-
tion. Due to continuing product improvements and possible manual revisions, we
recommend checking our website for the latest product information at:
IMPORTANT! Before making any connections, disconnect the vehicle’s battery until
the installation is completed to avoid possible damage to the electrical system.
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Congratulations on your purchase of this OKUR Audio Amplifier.
INTRODUCTION
1

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SAFETY PRECAUTIONS
NOTES
TM
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The OKUR OA4200.4PRO and OA4800.4PRO are equiped with a built
in variable crossover network allowing you to select the crossover function and frequency
for each the front channels or rear channels of the amplifier independently.
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FEATURES AND BENEFITS NOTES
TM
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L O W I M P E D A N C E S T A B I L I T Y
HEIGHT WIDTH LENGTH
2.04” / 52 mm
2.04” / 52 mm
10.82” / 275 mm
11.73” / 298 mm
9.33” / 237.38 mm
9.33” / 237.38 mm
OA4200.4PRO 2Ω STEREO
OA4800.4PRO 2Ω STEREO
4 CHANNEL STEREO AMPLIFIERS
POWER FUSING
REMOTE TURN- ON
ADJUSTABLE INPUT SENSITIVITY
THESE SETTING CANBE USE ON CHANNELS 1-2 OR 3-4
INDEPENDENTLY OR FOR ALL CHANNELS
OA4200.4PRO, O48000.4PRO
Adjust HP to desired frequency Adjust LP to desired frequency
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LOW IMPEDANCE STABILITY BUILT-IN CROSSOVER
The OA4200.4PRO and OA4800.4PRO amplifier allow you to select the crossover
mode (High-Pass, Full Range or Low Pass / Band Pass) and desired crossover
point for channels 1-2 and 3-4.
For example if you wish to use a 2-way loud speaker on channels 1-2, simply set
the crossover switch to HPF and adjust the frequency setting to the desired HPF
setting to block out any unwated low frequencies.
If you wish to run a subwoofer on channels 3-4, simply set the crossover switch to
LP/BP.You must adjust the HPF Frequency setting to 50 Hz and the LPF Frequency
setting to the desired Low Pass setting to block out unwanted high frequencies.
If you wish to run a component midrange on either channels 1-2 or 3-4 set the
crossover switch to LP/BP. Then use both HPF and LPF frequency controls to
create the desired band pass frequency range.

Class A/B Circuitry
2ΩLoad Stereo Capability
Low level RCA inputs
Selectable HP/LP/BP
High Efficiency Mosfet Design
Heat Management System
Specifications:
Features:
OA4200.4PRO | OA4800.4PRO
OA4200.4PRO OA4800.4PRO
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4 x 250 W @ 4ΩStereo
4 x 500 W @ 2ΩStereo
2 x 1000 W @ 4ΩBridged
Compatibility 2ΩStereo
>0.5%
(-3 dB) - 18Hz- 22Hz
( 1k Hz @ 4Ω) - 100
>90dB
285 Mv - 6 V
2 ΩStereo
Pre in R C A
12dB
20 Hz - 250 Hz
50 Hz - 250 Hz
@45 Hz 0-18 dB
4 x 275 W @ 4 ΩStereo
4 x 550 W @ 2 ΩStereo
2 x 1100 W @ 4 ΩBridged
Compatibility 2 Ω Stereo
>0.5%
(-3 dB) - 18Hz- 22Hz
( 1k Hz @ 4Ω ) - 100
>90dB
285 Mv - 6 V
2 ΩStereo
Pre in R C A
12dB
20 Hz - 250 Hz
50 Hz - 250 Hz
@45 Hz 0-18 dB
Rated Power:
Rated Power:
Rated Power:
THD at Rated Power:
Bandwidth:
Damping Factor:
Signal to Noise Ratio:
Input Sensitivity:
Minimum Load Impedance:
Input:
Crossover Filter Slope in Stereo:
Channel 1-2 HP Filter Range:
Channel 3-4 LP / BP Filter Range:
Selectable Bass Boost:
4 CHANNEL STEREO AMPLIFIERS4 CHANNEL
Power Connection Leads
Notes on the Power Supply
FUSE LEFT RIGHT +12V
REMGND
POWER INPUT SPEAKER OUTPUT
MIN 1Ω
98.5 FM( ( (
( ( (
TM
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Bridgeable outputs @4Ω load

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4 CHANNEL 4 CHANNEL AMPLIFIER
OA4200.4PRO &OA4800.4PRO
System 2: Bridged / Stereo Connection Subwoofer
System 1: 4 Channel Model
Ω
4 8
Ω
4 8
Ω
4 8
Ω
4 8
Ω
4 8
Subwoofer Connection
Ω
4 8
Ω
4 8
98.5 FM( ( (
( ( (
98.5 FM( ( (
( ( (
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