DB Research Okur A3 85.2 - User Manual

Due to continuous improvement of the product the Specifications are subject to change without notice.
A3 85.2 , A3 65.4 , A3 85.4 , A3 850.1D ,
A3 1050.1D , A3 1550.1D

Summary

Limited Warranty

Safety Precautions

Fuse Amplifier Power Wire at the Battery

Fuse power wire within 12" of the car's battery to protect the car from short circuits.

Mounting Caution

Short and Ground Wire Practices

Features and Benefits

DC Offset Protection

Protects speakers from DC voltage at the output stage by shutting down the amplifier.

Short Circuit Protection

Protects the amplifier from damage due to speaker shorts or wiring contact with ground.

Thermal Protection

Built-in Crossover

Power Fusing

Protects the amplifier against short circuits and excessive current.

Remote Turn-on

Adjustable Input Sensitivity

Low Impedance Stability

Power Connections

Connect Amplifier to Car Battery

Connect amplifier's power wire to car battery's positive terminal with an in-line fuse.

Connect Ground to Car Chassis

Connect amplifier's ground wire to the car's chassis at a clean, paint-free point.

Connect Remote Terminal

Connect the remote terminal to a switchable +12V source to turn the amplifier on/off.

Speaker Connections (Specific Models)

Bridged Mode Caution

Caution: Bridged mode requires a 4 Ohm load or higher to prevent overheating and damage.

Adjustments and Settings

A3 85.2 Crossover Settings

A3 65.4;A3 85.4 Crossover Settings

Fine-Tuning Input Sensitivity

Troubleshooting the System

Specifications

DB Research Okur A3 85.2 Specifications

A3 85.2

Power Output

power output	2 x 85 Watts
rated power @ 4 Ohm	2 x 65 Watts

Frequency Response

frequency response	15Hz - 25KHz
crossover frequency	50Hz - 250Hz
subsonic filter frequency	20Hz - 500Hz

Electrical Characteristics

sensitivity	90dB
input voltage range	285Mv - 6V
current draw	1 x 25 Amp

A3 65.4

Power Output

power output	4 x 65 Watts
rated power @ 4 Ohm	4 x 45 Watts

Frequency Response

frequency response	15Hz - 25KHz
crossover frequency	50Hz - 3kHz
subsonic filter frequency	20Hz - 500Hz

Electrical Characteristics

sensitivity	>90dB
input voltage range	285Mv - 6V
current draw	2 x 25 Amp

A3 85.4

Power Output

power output	4 x 85 Watts
rated power @ 4 Ohm	4 x 65 Watts

Frequency Response

frequency response	15Hz - 25KHz
crossover frequency	50Hz - 3kHz
subsonic filter frequency	20Hz - 500Hz

Electrical Characteristics

sensitivity	>90dB
input voltage range	285Mv - 6V
current draw	2 x 30 Amp

A3 850.1D

Power Output

power output	1 x 500 Watts
rated power @ 1 Ohm	1 x 300 Watts

Frequency Response

frequency response	15Hz - 250Hz
crossover frequency	40Hz - 150Hz
subsonic filter frequency	15Hz - 55Hz

Electrical Characteristics

sensitivity	90dB
input voltage range	285Mv - 6V
current draw	2 x 25 Amp

A3 1050.1D

Power Output

power output	1 x 525 Watts
rated power @ 1 Ohm	1 x 425 Watts

Frequency Response

frequency response	15Hz - 250Hz
crossover frequency	40Hz - 150Hz
subsonic filter frequency	15Hz - 55Hz

Electrical Characteristics

sensitivity	>90dB
input voltage range	285Mv - 6V
current draw	2 x 35 Amp

A3 1550.1D

Power Output

power output	1 x 500 Watts
rated power @ 1 Ohm	1 x 600 Watts

Frequency Response

frequency response	15Hz - 250Hz
crossover frequency	40Hz - 150Hz
subsonic filter frequency	15Hz - 55Hz

Electrical Characteristics

sensitivity	>90dB
input voltage range	285Mv - 6V
current draw	4 x 25 Amp