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V – Determine Horizontal Coverage

This fundamental step is actually quite simple. With the KF700 Series, this coverage must be narrowed to the most

appropriate multiple of 30° (90°, 120°, 150°, etc.). Dividing this required coverage by 30° yields the required

number of array columns.

When determining horizontal coverage, it is important to remember the “visible handle” rule of thumb. Because

the KF700 Series pattern edge exhibits dramatic attenuation, the clusters can be ﬂown much closer to on-stage

without the feedback problems associated with conventional arrays. This allows the mixer to take greater advantage

of the KF700 Series stereo separation. It is possible to observe stereophonic information while seated directly in

front of one of the primary clusters.

Out of

coverage pattern

One side shown for illustration purposes

Содержание KF750 Series

Страница 1: ...T h e L a w s o f P h y s i c s T h e A r t o f L i s t e n i n g E A W s K F 7 0 0 S e r i e s T o u r i n g U s a g e G u i d e...

Страница 2: ......

Страница 3: ...act as a single unit Developing and integrating the various loudspeaker modules in the KF850 KF860 and KF900 Series has led us to new ways of looking at array building that provide even coverage throu...

Страница 4: ...ing a true continuum of success Our experience has led us to develop a ve step approach to designing the appropriate array for any venue 1 D E S I G N A R R A Y C O L U M N S Design a single array col...

Страница 5: ...mize destructive interaction between array modules and produce even coverage in three space three dimensions AS3D requires that the array ampli cation be zoned in horizontal rows to permit implementat...

Страница 6: ...cluster It is alright if someone seated house right sees a handle on the house left cluster The KF700 Series loudspeakers provide a 30 horizontal pat tern that drops off very rapidly outside of this n...

Страница 7: ...in uenced by the edge events That is an impulse response measurement reveals two distinct upper mid frequency arrivals coming from the physical edges of the line source i e the top of the top module...

Страница 8: ...T h e L a w s o f P h y s i c s T h e A r t o f L i s t e n i n g E A W s K F 7 0 0 S e r i e s T o u r i n g U s a g e G u i d e INTEGRATING MODULES INTO AN ARRAY COLUMN...

Страница 9: ...riate processing and AS3D techniques will provide even coverage to the front of the venue without creating interference issues in the transition area between KF755 and KF750 coverage Dedicated down ll...

Страница 10: ...rent arrival in order to achieve appropriate summation throughout a venue IIIa GroundstackingSB750 s Many users will choose to use SB750 s in a traditional groundstacked con guration In addition to pr...

Страница 11: ...apparent impact at great distances Additional processing also allows for subwoofer beam steering Unlike conventional ground stacked subwoofers own subwoofers lose the increased output bene t provided...

Страница 12: ...ronounced lobes above and below the cluster This limits the ability to project sub frequency information upward to the far reaches of the venue signi cantly reduces the subwoofer output in the front r...

Страница 13: ...steering 6 5 msec delay on bottom row 3x KF750 1x SB750 1x SB750 1x KF755 IV UsingKF755 sforUp llCoverage Many larger venues medium and large arenas require up ll in order to reach the farthest seati...

Страница 14: ...so as to sum with the energy from KF750 column 2 rows of upfill KF755 s in a large arena 1 237 msec 1 756 msec delay differential A B C Arrival difference from A to B 1 237 msec 2x KF755 inverted 4x...

Страница 15: ...h more delay for the top row and two with less for the second row A delay unit must be carefully chosen such that the latency delay through the unit does not exceed the desired delay for the second ro...

Страница 16: ...is important to remember the visible handle rule of thumb Because the KF700 Series pattern edge exhibits dramatic attenuation the clusters can be own much closer to on stage without the feedback prob...

Страница 17: ...T h e L a w s o f P h y s i c s T h e A r t o f L i s t e n i n g E A W s K F 7 0 0 S e r i e s T o u r i n g U s a g e G u i d e AS3D ARRAY SHADING IN THREE DIMENSIONS...

Страница 18: ...tly linked to the ends of the line source If the array is short these arrivals occur close together In larger arrays the arrivals are further apart These dual arrivals create problems in areas that li...

Страница 19: ...of listening positions For the sake of legibility only three locations are shown 0 10 20 These locations are illustrated in Figure 2 Array Response Locations At 0 10 and 20 these are the listening loc...

Страница 20: ...is generated by the same computer model referenced above By implementing these simple techniques effective and extremely consistent array performance can be provided using the simple dead hung array T...

Страница 21: ...l array shading as throw distances should be relatively consistent However in venues that are particularly long or particularly narrow output levels on the short throw sides may become excessive This...

Страница 22: ...ddress the increased vertical angle associated with closer proximity to the array In an extreme situation increase the horizontal area of attenuated coverage by unplugging the gap box in the second co...

Страница 23: ...T h e L a w s o f P h y s i c s T h e A r t o f L i s t e n i n g E A W s K F 7 0 0 S e r i e s T o u r i n g U s a g e G u i d e DSP SETTINGS...

Страница 24: ...ssover 2 way crossover 2 way crossover 2 way crossover 1 Band PEQ Gain Delay Lim Comp 4 Band PEQ Gain Delay Lim Comp 4 Band PEQ Gain Delay Lim Comp Gain Delay Gain Delay Delay Delay Gain Delay Gain De...

Страница 25: ...14Hz 24dBButterworth PEQ Frequency Boost Cut Q USP 2Q Bandwidth EQ1 500Hz 8 5dB 2 2 0 99 0 52 EQ2 874Hz 5 5dB 10 6 84 0 10 EQ3 1k26Hz 3 5dB 3 6 2 49 0 28 HF GAIN 2 0dB DELAY 1 102msec HPF 1k68Hz 24dBB...

Страница 26: ...354Hz 24dBLink Riley LPF 1k47Hz 24dBButterworth PEQ Frequency Boost Cut Q USP 2Q Bandwidth EQ1 490Hz 8 0dB 2 1 1 02 0 53 EQ2 874Hz 5 5dB 10 6 84 0 10 EQ3 1k26Hz 3 5dB 3 6 2 49 0 28 HF GAIN 2 0dB DELA...

Страница 27: ...Riley LPF 1k47Hz 24dBButterworth PEQ Frequency Boost Cut Q USP 2Q Bandwidth EQ1 490Hz 8 0dB 2 1 1 02 0 53 EQ2 874Hz 5 5dB 10 6 84 0 10 EQ3 1k26Hz 3 5dB 3 6 2 49 0 28 HF GAIN 2 0dB DELAY 1 102msec HPF...

Страница 28: ...4Hz 24dBLink Riley LPF 1k47Hz 24dBButterworth PEQ Frequency Boost Cut Q USP 2Q Bandwidth EQ1 490Hz 8 0dB 2 1 1 02 0 53 EQ2 874Hz 5 5dB 10 6 84 0 10 EQ3 1k26Hz 3 5dB 3 6 2 49 0 28 HF GAIN 2 0dB DELAY 1...

Страница 29: ...earenaswherethebalcony isabovethelevelofthearray ThedelayofasinglerowofKF755up ll modulesiscalibratedtomeettheacoustic originofanarraycomprising3 high KF750 soverasingleKF755down ll module Three Over...

Страница 30: ...quire onlyminoradjustmentdependingonhow theyaredeployed PleaseseeSection2of thisGuideformoreinformationon ying orgroundstackingSB750subwoofers SB750DSPSETTINGS LF GAIN 6 0dB DELAY 0 000msec HPF 35 14H...

Страница 31: ...web www eaw com EUROPE EAW International Ltd tel 44 1494 539090 fax 44 1494 539091 T h e L a w s o f P h y s i c s T h e A r t o f L i s t e n i n g EAW is the worldwide technological and market leade...

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