background image

28

5.5 Operating level Switch

To adapt the FEEDBACK DESTROYER PRO to the used operating level, the unit can be switched between

homerecording level (-10 dBV) and professional level (+4 dBu). Use the LED bars on the frontpanel to deter-

mine the optimal setting. The Level indicators should read somewhere between -10 and -6 dB, while the clip

LED should not light up at all.

6. APPENDIX

6.1 Frequency chart

In order to maintain a better survey only every second value is registered in the table. The adjustable values do

not exactly fit into a 1/60 octave interval, because also the ISO frequencies do not perfectly fit into a physical

1/3 octave interval. Rather a linear approximation is used to specify the values.
Background

f

1

,f

2

, ...

ISO frequency

1 third = 20/60 octave (idealized ISO interval)

increment

(

)

f

f

f

n

n

n

=

+

1

20

Display

 -9/60

 -8/60

 -6/60

 -4/60

 -2/60

ISO

 +2/60

 +4/60

 +6/60

 +8/60

 +10/60

Display

20 Hz

20

20.5

21

21.5

22

22.5

20 Hz

25 Hz

22.8

23

23.5

24

24.5

25

25.7

26.3

27

27.6

28.3

25 Hz

32 Hz

28.6

28.9

29.6

30.2

30.9

31.5

32.4

33.2

34.1

34.9

35.8

32 Hz

40 Hz

36.2

36.6

37.5

38.3

39.2

40

41

42

43

44

45

40 Hz

50 Hz

45.5

46

47

48

49

50

51

53

54

55

57

50 Hz

63 Hz

57

58

59

60

62

63

65

66

68

70

71.5

63 Hz

80 Hz

72.4

73

75

77

78

80

82

84

86

88

90

80 Hz

100 Hz

91

92

94

96

98

100

103

105

108

110

113

100 Hz

125 Hz

114

115

118

120

123

125

129

132

136

139

143

125 Hz

160 Hz

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

324

332

341

349

358

.32 kHz

.40 kHz

362

366

375

383

392

400

410

420

430

440

450

.40 kHz

.50 kHz

455

460

470

480

490

500

513

526

539

552

565

.50 kHz

.63 kHz

572

578

591

604

617

630

647

664

681

698

715

.63 kHz

.80 kHz

724

732

749

766

783

800

820

840

860

880

900

.80 kHz

1.00 kHz

910

920

940

960

980

1000

1025

1050

1075

1100

1125

1.00 kHz

1.25 kHz

1138

1150

1175

1200

1225

1250

1285

1320

1355

1390

1425

1.25 kHz

1.60 kHz

1443

1460

1495

1530

1565

1600

1640

1680

1720

1760

1800

1.60 kHz

2.0 kHz

1820

1840

1880

1920

1960

2000

2050

2100

2150

2200

2250

2.0 kHz

2.5 kHz

2275

2300

2350

2400

2450

2500

2565

2630

2695

2760

2825

2.5 kHz

3.2 kHz

2858

2890

2955

3020

3085

3150

3235

3320

3405

3490

3575

3.2 kHz

4.0 kHz

3618

3660

3745

3830

3915

4000

4100

4200

4300

4400

4500

4.0 kHz

5.0 kHz

4550

4600

4700

4800

4900

5000

5130

5260

5390

5520

5650

5.0 kHz

6.3 kHz

5715

5780

5910

6040

6170

6300

6470

6640

6810

6980

7150

6.3 kHz

8.0 kHz

7235

7320

7490

7660

7830

8000

8200

8400

8600

8800

9000

8.0 kHz

10.0 kHz

9100

9200

9400

9600

9800

10000

10250

10500

10750

11000

11250

10.0 kHz

12.5 kHz 11375

11500

11750

12000

12250

12500

12850

13200

13550

13900

14250

12.5 kHz

16.0 kHz 14425

14600

14950

15300

15650

16000

16400

16800

17200

17600

18000

16.0 kHz

20 kHz 18200

18400

18800

19200

19600

20000

20 kHz

Tab. 6.1: frequency chart

6. APPENDIX

All manuals and user guides at all-guides.com

Содержание FEEDBACK DESTROYER PRO DSP1100P

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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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