COMBINING AMPLIFIERS

NOTE : Remember that the Directed ESP® amplifiers use a digital gain control with a finite number of adjust- ment steps. A very small adjustment may not cause any audible change in level.

The Directed D1200/D2400 subwoofer amplifiers have the capability of connecting two or more amplifiers of the same power rating together in a master/slave combination for increased power with accurate level matching. They are the Parallel Synced Gain and External Synced Bridged combinations.

WARNING: DO NOT attempt to combine amplifiers of different power ratings. These amplifier combinations work correctly only if the Master and Slave amplifiers are identical models.

Parallel Synced Gain

In this master/slave combination the master amplifier pre-amp controls remain active and the slave amplifier pre-amp is bypassed. This allows the master ampli- fier to control gain, filter, and sub-level on both amplifiers.

This combination allows the amplifiers to drive their own separate subwoofer(s) while being synced together via an in- phase audio pre-amp signal from the master amplifier. Wiring connections to the amplifier subwoofer outputs in this combination should be standard in-phase configurations, creating a parallel speaker connection. (Refer to Parallel Synced Gain section of this guide for amplifier and speaker connection

diagrams.)

NOTE:

One master amplifier can control up to three slave

 

amplifiers in this combination. Multiple identical

 

master/slave combinations can be added to any

 

given system.

External Synced Bridged

In this master/slave combination the master amplifier pre-amp controls remain active and the slave amplifier pre-amp is bypassed. This allows the master amplifier to control gain, filter, and sub-level on both amplifiers. This combination allows the amplifiers to drive common subwoofer loads while being synced together via an out-of-phase audio pre-amp signal from the master amplifier. In this subwoofer wiring configuration the master amplifier sends the positive signal to the subwoofer while the slave amplifier sends the negative signal, making an externally bridged speaker connection. (Refer to External Synced Bridged section of this guide for amplifier and speaker connection diagrams.)

NOTE:

Amplifiers in this combination can only be connected

 

in matched pairs. Multiple matched pairs may be

 

added to drive separate subwoofer loads in a given

 

system.

Combined Amplifiers Gain and Filter Settings

NOTE:

You MUST set the Subsonic, EQ, and other filter

 

settings on the master amplifier to the same posi-

 

tions to achieve safe, optimal results. Adjustment

 

guidelines are discussed in the Crossover and Gain

 

Adjustment section of this guide.

16

© 2005 Directed Electronics, Inc. all rights reserved

 

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Directed Audio D2400, D1200 owner manual Combining Amplifiers, Diagrams
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D2400, D1200 specifications

The Directed Audio D1200 and D2400 are advanced car audio amplifiers designed to deliver exceptional sound quality and performance. These models are engineered for audio enthusiasts seeking powerful and reliable amplification solutions capable of enhancing their in-car audio experience.

The Directed Audio D1200 is a compact and lightweight amplifier, equipped with a high-efficiency class D architecture. This design allows it to produce 1200 watts of peak power while minimizing heat generation, making it suitable for a wide range of audio systems without compromising performance. The amplifier features a low-pass filter that helps in controlling the frequency response, ensuring that low-frequency sounds are delivered with clarity and depth. Additionally, its variable gain control allows users to tailor the output levels to their individual preferences, ensuring a personalized listening experience.

On the other hand, the Directed Audio D2400 takes power and performance a notch higher, boasting an impressive 2400 watts of peak power. This amplifier is also designed with class D technology, providing efficient operation and reducing power consumption. The D2400 comes equipped with advanced thermal management features, ensuring that it remains cool during extended use. Its built-in crossover options enable users to achieve precise sound tuning, allowing for optimal integration with subwoofers and other speaker components.

Both models incorporate innovative technologies aimed at enhancing audio fidelity. They feature high-quality signal processing, ensuring that sound remains clear, even at high volumes. The amplifiers are engineered with low distortion levels, providing accurate sound reproduction across various musical genres. Additionally, they include short circuit and overcurrent protection systems, which safeguard the amplifiers against potential damage.

Other key characteristics of the Directed Audio D1200 and D2400 include their robust construction, designed for durability and long-lasting performance. Their stylish designs make them a suitable addition to any audio setup, while the compact form factor ensures easy installation in diverse vehicle types.

In summary, the Directed Audio D1200 and D2400 amplifiers exemplify a commitment to delivering powerful, high-quality audio performance. With advanced technologies and user-friendly features, these amplifiers are ideal for anyone looking to elevate their car audio experience to new heights. Their blend of efficiency, power, and sound fidelity makes them standout choices in the competitive market of car audio amplification.
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