HK Audio CAD 208 - Handbuch (Seite 5)

5
1 CAD 208 Mid/High Enclosure
Fig. 1: CAD 208
Design and Construction
The CAD 208 mid/high enclosure’s top and bottom panels are sloped at an
angle of 7.5°. The housing is made of polyamide resin reinforced with glass
fibers, a tough, rugged, and weatherproof plastic exceptionally well-suited for
constructing loudspeaker enclosures. When configured in a 0° array, each cabi-
net may be tilted up to 15° measured from the next higher rigging point, in 1.5°
steps. The baffle board covering consists of a metal grilled backed with two 8"
speakers and the horns fed by the two 1" drivers.
The (passive) CAD 208 unit weighs 17.5 kg. It is 57.8 cm wide, 37.3 cm high and
27.2 cm deep (including rigging hardware).
Fully integrated rigging hardware serves to fly the mid/high units. It consists of
four quick-release pins and three rigging connectors, two mounted on the sides
and one on the back panel.
Electrical and Acoustical Data
The CAD 208 enclosure is loaded with two 8" cone chassis speakers and two 1"
high frequency drivers feeding CD horns. An internal passive crossover addres-
ses the drivers. The separating frequency for the HF drivers is 2,200 Hz.
The CAD 208 enclosure’s nominal electrical power-handling capacity is 500
watts program (AES signal, 6 dB crest) at 16 ohms overall impedance. It pro-
duces a sound pressure level of 101 dB (1W@1m), measured under half-space
conditions. Maximum SPL measured under the same conditions at a distance of
one meter is 136 dB at 10% THD.
The enclosure radiates sound at a horizontal angle of 100° and a vertical angle
of 15%. Frequency response ranges from 100 Hz to 20 kHz (±3 dB).
Note: The bottom threshold frequency can drop to 70 Hz, depending on the
height of the array.
The CAD 208 is thus able to serve as a fullrange speaker for pure speech rein-
forcement applications. We recommend using at least two enclosures for this.
Connections
The connector panel on the rear of the CAD 208 is recessed to protect the ports
from harm. This enclosure may be equipped with three types of connectors:
a: Connector panel with two Speakon NL 4 ports (Input/Through)
Both ports’ four pins are wired in parallel. Pin assignments are pin 1+ = mid/
high +, 1- = mid/ high -, 2+ = sub +, 2- = sub 2-.
b: Connector panel with binding posts
for tri-amped (without internal crossover, with external controller) or passive
(internal crossover network) and operating modes - optional
c: Connector panel with PG glands
with terminals inside; optional
1.1 Technical Data, CAD 208
(You’ll find frequency measurements on page xxx.)
Nominal power handling (AES, 6 dB crest):
250 W RMS, 500 W program
Frequency range ± 3 dB:
75/100 Hz – 18 kHz (depending on controller)
SPL, 1W@1m:
95 dB full-space
101 dB half-space
SPL, max. SPL@1m:
130 dB@10%THD full-space*
136 dB@10%THD half-space*
Nominal impedance: 8 ohms
Woofers: 2x8" speakers
HF drivers: 2x1"
Horn: 100° horizontal, 15° vertical
X-over frequency: 2.2 KHz, 12 dB/ octave
Connector options:
2x Speakon NL 4
Barrier strip, optional
PG glands, optional
Housing: Polyamide resin
X-over: 2.5-way passive, pure crossover
Filter: Controller
Color: Black, white (or any RAL color on demand)
Front grille: Metal
Rigging hardware: Integrated, with three pick-points
Variable set angle for curving arrays:
0°, 1.5°, 3°, 4.5°, 6°, 7.5°, 9°, 10.5°, 12°, 13.5° 15°
Weight:
17.5 kg / 38.6 lbs.
16.5 kg / 36.4 lbs. (3-Wege, ohne interne FQ-Weiche)
Dimensions (W x H x D):
57.8 cm x 23.8 cm x 37.3 cm
22-3/4 x 9-3/8 x 14-11/16"
Accessories:
• Rigging/ stacking frame for one to 24 CAD 208s
• Wall mount, ceiling mount
• Flight cases for four and eight CAD 208s each
* with four CAD 208s
English
A CADIS™ Speaker Cabinets