HK Audio CDR 210 F - Manual (Page 5)

5
A
1 Line Array Approaches in Recent Years ............ 6
2 Development Objectives ................................ 7
2.1 High Frequency Range .................................... 7
2.2 Middle Frequency Range .................................. 7
2.3 Low Frequency Range ....................................... 7
3 Emphasized Radiation Technology™ ............... 7
3.1 The High Frequency Wave Front .......................8
3.2 Midrange ..........................................................8
3.3 The Subwoofer-Truest Dynamic Response ..........9
Index of Figures:
Fig. 1: Comparison of a 4 m array's near-to-far
field transition in theory and practice ........6
Fig. 2: Gap due to curving ....................................6
Fig. 3: Emphasized radiation in a line array .......... 7
Fig. 3.1: Extended line Array near-field .................... 7
Fig. 4: Effect without gap (red), with evenly
distributed gap (blue), and with
unevenly distributed gap (pink) ................. 7
Fig. 5: Typical J shape ........................................... 7
Fig. 6: The COHEDRA
® acoustic lens'
mode of operation .....................................8
Fig. 7: The COHEDRA ® acoustic lens ...................8
Fig. 8: Effect of the synthetic fiber fleece ..............9
Fig. 9: Front view of the COHEDRA
®
CDR 208 mid/high enclosure ....................9
Fig. 10: 8" speaker cover serving as a
CD horn and part of the
compression chamber ...............................9
Fig. 11: Comparison of moving masses ..................9
Fig. 12: Impulse response: ideal (blue),
10" (red), 18" (purple) ...............................9
Chapter A
The COHEDRA
®
Technology