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5

E

FOREWORD

Dear Customer,

Welcome to the team of FEEDBACK DESTROYER PRO users and thank you very much for expressing your

confidence in BEHRINGER products by purchasing this unit.
It is one of my most pleasant tasks to write this letter to you, because it is the culmination of many months of

hard work delivered by our engineering team to reach a very ambitious goal: making an outstanding device

better still. The FEEDBACK DESTROYER has for some  time been a standard tool used by numerous studios

and P.A. rental companies. The task to improve one of our best-selling products certainly meant a great deal

of responsibility, which we assumed by focusing on you, the discerning user and musician. It also meant a lot

of work and night shifts to accomplish this goal. But it was fun, too. Developing a product usually brings a lot

of people together, and what a great feeling it is when everybody who participated in such a project can be

proud of what we’ve achieved.
It is our philosophy to share our joy with you, because you are the most important member of the BEHRINGER

family. With your highly competent suggestions for new products you’ve greatly contributed to shaping our

company and making it successful. In return, we guarantee you uncompromising quality (manufactured under

ISO9000 certified management system) as well as excellent technical and audio properties at an extremely

favorable price. All of this will enable you to fully unfold your creativity without being hampered by budget

constraints.
We are often asked how we can make it to produce such high-grade devices at such unbelievably low prices.

The answer is quite simple: it’s you, our customers! Many satisfied customers means large sales volumes

enabling us to get better conditions of purchase for components, etc. Isn’t it only fair to pass this benefit back

to you? Because we know that your success is our success, too!
I would like to thank all people whose help on “Project FEEDBACK DESTROYER PRO“ has made it all

possible. Everybody has made very personal contributions, starting from the designers of the unit via the many

staff members in our company to you, the user of BEHRINGER products.

My friends, it’s been worth the trouble!

Thank you very much,

Uli Behringer

All manuals and user guides at all-guides.com

Summary of Contents for FEEDBACK DESTROYER PRO DSP1100P

Page 1: ...1 E User s Manual Bedienungsanleitung D Version 1 0 October 1998 FEEDBACK DESTROYER PRO DSP1100P www behringer de All manuals and user guides at all guides com a l l g u i d e s c o m...

Page 2: ...designation and if applicable Article No which refers to this declaration is in accordance with the following standards or stan dardized documents x EN 60065 x EN 61000 3 2 x EN 55020 x EN 61000 3 3 x...

Page 3: ...tion openings Heat The appliance should be situated away from heat sources such as radiators heat registers stoves or other appliance including amplifiers that produce heat Power Source The appliance...

Page 4: ...rametric filters including Frequency Bandwidth and Gain s Single Shot Auto and Manual modes are assignable for each filter s Free FEEDBACK DESTROYER software allows for total remote control via PC dow...

Page 5: ...ortant member of the BEHRINGER family With your highly competent suggestions for new products you ve greatly contributed to shaping our company and making it successful In return we guarantee you unco...

Page 6: ...the main mix bus 16 3 4 Using the FEEDBACK DESTROYER PRO in single channels and sub groups 18 3 5 Using the FEEDBACK DESTROYER PRO in a studio environment 18 3 6 Using the FEEDBACK DESTROYER PRO as a...

Page 7: ...DBACK 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...

Page 8: ...potential of your FEEDBACK DESTROYER PRO please bear in mind the following points 1 No device will fully compensate for wrong microphone handling Be aware that there are some actions on stage may stil...

Page 9: ...the status of the filter By means of an 8 stage LED meter each of the two fully independent channels can be monitored 1 4 1 Front panel control elements Fig 1 2 Display section DSP1100P 1 The two LED...

Page 10: ...E L key to select the left audio channel 9 Use the ENGINE R key to select the right audio channel If you wish to process the left and right channels simultaneously Couple mode press both Engine keys a...

Page 11: ...ce provided on the enclosed Warranty Registration Card Put the instruction manual in a safe place and return the completed Warranty Registration Card to us within 14 days of purchase making sure that...

Page 12: ...microphones e g on the drums After the filter has adjusted itself automatically it enters a special Lock mode which means that although the frequency remains fixed the width and depth of the filter a...

Page 13: ...hange the filter mode selection takes place after a period of approximately one second This is indicated by a dot in the lower right corner of the display By pressing and keeping the FILTER MODE and t...

Page 14: ...he STORE key backwards several times On the first page you can select the MIDI channel The display reads a small c channel The jog wheel adjusts a channel from 1 through 16 To switch off the MIDI func...

Page 15: ...FEEDBACK DESTROYER PRO will be deactivated The full featured MIDI implementation of the FEEDBACK DESTROYER PRO allows for easily integrating the FEEDBACK DESTROYER PRO into any MIDI system s MIDIIN A...

Page 16: ...ruments Additionally vocal mics are not always used at fixed positions It has therefore proven useful to protect the monitor paths against feedback An agreeable side effect when using the FEEDBACK DES...

Page 17: ...o other way to eliminate feedback you can insert the FEEDBACK DESTROYER PRO into the main mix bus Unless your mixing console has dedicated insert points for the main mix bus you can simply connect the...

Page 18: ...maximum of twelve fully parametric equalizers per channel in Parametric EQ mode Thus you can realize any application ranging from slight processing to the total manipulation of music signals For exam...

Page 19: ...e the volume of their instru ment increased on the monitor as the concert goes on With the FEEDBACK DESTROYER PRO you can turn up the volume without having to fear feedback problems When the show begi...

Page 20: ...chinery Hall Sound Pressure Level dB SPL Fig 4 1 Dynamic range of human hearing As can be seen human hearing has a very wide dynamic range of about 130 dB which surpasses the range of a DAT or CD play...

Page 21: ...DBACK DESTROYER PRO you can adjust the relative bandwidth conveniently with the infinitely variable jog wheel The filter bandwidth can be tuned from 2 octaves 120 60 octaves down to 1 60 octave for fi...

Page 22: ...ion in the distance between microphone and loudspeaker results in a variation of feedback frequencies It is therefore very difficult to anticipate feedback frequencies and avoid their occurrence by me...

Page 23: ...lter qualities However your tweeters may well have gone up in smoke before you ve found the frequency at which feedback occurs and managed to eliminate it by adjusting the filter frequency bandwidth a...

Page 24: ...mpling procedure may be thought of as a grid superimposed on the curve The higher the sampling rate and the higher the number of bits the finer the grid The analog signal traces a continuous curve whi...

Page 25: ...aging 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 immediat...

Page 26: ...ting NEVER use fuses of different ratings or cover faulty fuses with aluminium foil This can cause fire and electric shocks and will endanger your life and the lives of others 5 3 Audio connections As...

Page 27: ...centerpiece in such a studio is usually a computer running a sequencer software which not only controls various keyboards samplers and sound modules but can also run the programming of outboard effec...

Page 28: ...144 146 150 153 157 160 164 168 172 176 180 160 Hz 20 kHz 182 184 188 192 196 200 205 210 215 220 225 20 kHz 25 kHz 228 230 235 240 245 250 257 263 270 276 283 25 kHz 32 kHz 286 289 296 302 309 315 3...

Page 29: ...1 Oct 1 Oct 8 dB 4 dB 9 L R SI SI SI SI SI SI SI AU AU PA PA PA SI SI SI SI SI SI SI AU AU PA PA PA 10 Couple SI SI SI SI SI SI SI AU AU PA PA PA MONO 9 single shot filters attenuate room resonances...

Page 30: ...el Default Changed OFF 1 16 OFF 1 16 OFF 1 16 OFF 1 16 memorized Mode Default Messages Altered 1 2 3 4 X X 1 2 3 4 X X Note Number True Voice X X X X Velocity Note ON Note OFF X X X X After Touch Key...

Page 31: ...l Processing Converters 20 bit Sigma Delta 64 128 times Oversampling Sampling Rate 46 875 kHz Display Type 2 digit numeric LED Display Power Supply Mains Voltages USA Canada 120 V AC 60 Hz U K Austral...

Page 32: ...card signed stamped by retail dealer within 14 days of the date of purchase to BEHRINGER INTERNATIONAL address see 3 Failure to return the card in due time date as per postmark will void any extended...

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