HK Audio CTA 208 Mid/High - Manual (Page 8)

ConTour Array™ 1.3
Design and Construction
The CTA 208 Mid/High unit‘s top and bottom
panels slope at an angle of 4.5°. Water-repellent,
black PU lacquer coats the enclosure made of
18 mm, 13-ply birch plywood. Your choices of array
curving angles (or splay) are 0° and 9°. The baffle
board cover consists of a metal grille; found behind
it are two CD horns equipped with acoustical lens
for the four 1" drivers.
The CTA 208 weighs 29 kg. It is 51 cm wide,
52.5 cm high and 34.6 cm deep (including rigging
attachments). Two grips on the side panels simplify
transport and set-up.
Fully integrated rigging attachments comprising
three quick-release pins and three rigging
connectors, two mounted on the sides and one in
the rear, serve to fly the mid/high units.
Electrical and Acoustical Data
The CTA 208 enclosure features two 8" cone chassis
speakers and four 1" B&C high frequency drivers
with a front-mounted acoustical lens in a CD horn
configuration. An internal passive crossover with a
crossover frequency of 2 kHz addresses the drivers
via a special acoustic lens. The CTA 208 enclosure‘s
nominal electrical power-handling is 500 watts
RMS at 8 ohms impedance. It produces 105 dB
(1W@1m) sound pressure, measured under half-
space conditions. Maximum SPL measured under
the same conditions at one meter is 134 dB at 10%
THD. The CTA 208 radiates at a horizontal angle of
100°. Frequency response ranges from 95 Hz to
19 kHz (±3 dB).
Connections
The ports are out of harm‘s way on a recessed
connector panel on the CTA 208‘s back. It offers
two Speakon
® NL 4 connectors. Pin assignments
are pin 1+ = mid/high +, 1– = mid/high-.
Caution: Please connect just one CT 208 to each
CTA 118 Sub enclosure. The second port serves to
connect a power amp in parallel (up to two CTA 208
at 4 ohms).
1.1 Specifications, CTA 208
A professional two-way system featuring cylindrical
wave technology, this cabinet serves to set up
vertical line arrays and project a coherent wavefront
across the entire frequency range. The precision-
tuned enclosure sports two 8" midrange speakers.
Four 1" high-frequency drivers address two constant
directivity horns with 100° horizontal directivity via
a special acoustic lens. Vertical directivity depends
on the number of CTA 208s in use.
The housing is made of 15/18 mm birch plywood
coated with black PU varnish. Its fully integrated
rigging hardware adjusts to two 0° and 9° angles
for setting up line arrays. An integrated pole mount
offers two tilt angles of 3° and 11°. An impact-
resistant steel grille covers the front.
The active CTA 118 Sub system subwoofer with
an integrated DDO-Pro™ Controller drives the
enclosure. CTA 208‘s frequency response (+/- 3 dB)
ranges from 95 hertz to 19 kHz. Axial sensitivity is
105 dB, measured under half-space conditions at @
1W / 1m. Maximum SPL measured under the same
conditions with two CTA 208s is 134 dB at 10%
THD. Each unit‘s nominal power handling is
500 watts RMS at 8 ohms.
Connectors: 1 Neutrik NL 4 Speakon ® .
Dimensions (W x H x D): 51 x 52.5 x 34.6 cm
Weight: 29 kg
Model: HK AUDIO CTA 208
B. ConTour Array™ Speakers
1. The CTA 208 Mid/High Unit
Fig. 1: CTA 208