Hk-audio CTA 118 Sub User Manual download pdf (Page 8)

ConTour Array™ 1.1

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 CDR 108 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

one Speakon

NL 4 connector. Pin assignments are

pin 1+ = mid/high +, 1– = mid/high-.

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

1 2 3 4 5 6 7 8 9 10 11 12 13 ... 51 52

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Hk-audio CTA 118 Sub User Manual Page 8

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