Introduction, Design concept, Before you begin

1. INTRODUCTION

With the FEEDBACK DESTROYER PRO you have purchased a highly useful device for the control of sound reinforcement systems, which will enable you to focus your attention on what is essential: your music. The fully featured FEEDBACK DESTROYER PRO not only suppresses feedback but also incorporates a wealth of additional functions in one single unit. Its 24 separate filters can be edited in all parameters and automatically detect and suppress feedback frequencies. With its pro-level internal signal processing circuitry, the unit can also be used as a high-end equalizer for stage and studio applications. The MIDI interface allows for integrating the FEEDBACK DESTROYER PRO into any MIDI system, and the open system architecture enables you to update the system software whenever you want. In short: the BEHRINGER FEEDBACK DESTROYER PRO was built for the next millennium.

+The following operational manual will introduce you to the BEHRINGER FEEDBACK DESTROYER PRO and its various functions. After reading the manual carefully, make sure it is always on hand for future reference.

1.1 The design concept

Despite extensive computing work which is done in the DSP1100P by a “dual-engine” 24-bit processor, the FEEDBACK DESTROYER PRO can be operated easily and conveniently. All parameter edits are performed with the jog wheel (rotary control). 10 presets are available to store user-defined programs.

The philosophy behind BEHRINGER products guarantees a no-compromise circuit design and employs the best choice of components. Top-quality 20-bit AD/DA converters which belong to the best components avail- able owing to its outstanding specifications and excellent sonic characteristics. Two 24-bit DSPs are used as the heart of the FEEDBACK DESTROYER PRO. These perform the precise calculations needed for the pro- cessing of the complex algorithms. Additionally, the FEEDBACK DESTROYER PRO uses high quality resis- tors and capacitors with very tight tolerances, high-grade switches, low-noise operational amplifiers (type 4580) as well other selected components.

The FEEDBACK DESTROYER PRO DSP1100P uses SMD technology (Surface Mounted Device). These subminiature components known from aerospace technology allow for an extreme packing density, improving the unit’s reliability even further. Additionally, the unit is manufactured in compliance with a ISO9000 certified management system.

1.2 Before you begin

Your BEHRINGER FEEDBACK DESTROYER PRO was carefully packed in the factory and the packaging was designed to protect the unit from rough handling. Nevertheless, we recommend that you carefully examine the packaging and its contents for any signs of physical damage, which may have occurred in transit.

+If the unit is damaged, please do not return it to us, but notify your dealer and the shipping company immediately, otherwise claims for damage or replacement may not be granted. Shipping claims must be made by the consignee.

The BEHRINGER FEEDBACK DESTROYER PRO fits into one standard 19" rack unit of space (1 3/4"). Please allow at least an additional 4" depth for the connectors on the back panel.

Be sure that there is enough space around the unit for cooling and please do not place the FEEDBACK DESTROYER PRO on high temperature devices such as power amplifiers etc. to avoid overheat- ing.

+Before you connect your FEEDBACK DESTROYER PRO to the mains, please make sure that your local voltage matches the voltage required by the unit! (see chapter 5 for details)

The mains connection of the FEEDBACK DESTROYER PRO is made by using a mains cable and a standard IEC receptacle. It meets all of the international safety certification requirements. Please make sure that all units have a proper ground connection.

+Please ensure that only qualified persons install and operate the FEEDBACK DESTROYER PRO. During installation and operation the user must have sufficient electrical contact to earth.