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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
This combination allows the amplifiers to drive their own separate subwoofer(s) while being synced together via an in- phase audio
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
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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