HK Audio CTA 118 Sub - Manual (Page 10)

ConTour Array™ 1.1
Design and Construction
Made of 18 mm 13-ply birch plywood, water-
repellent, black PU lacquer coats the CTA 118 Sub
enclosure. A robust metal grille backed with
laminated acoustic foam rubber covers the baffle
board.
The CTA 118 Sub weighs 59 kg. It is 51 cm wide,
73 cm high and 71 cm deep. Three slot grips routed
into the side panels enable easy transport and
set-up; a recessed handle is on the lid. The active
circuitry resides in a separate chamber at the back
of the enclosure. A removable dolly protects the
electronic components and simplifies transport.
Electrical and Acoustical Data
The CTA 118 Sub enclosure features an 18" woofer.
The CTA 118 Sub enclosure‘s nominal electrical
power-handling is 700 W RMS at 8 ohms impedance.
It produces 101 dB (1W@1m) sound pressure,
measured under half-space conditions. Maximum
SPL measured under the same conditions at one
meter is 130 dB at 10% THD. The CTA 118 Sub‘s
frequency response ranges from 42 Hz to fx
(+/-3 dB). The two integrated PWM power amps
for the subwoofer and the mid/high output deliver
1000 W RMS each.
Connections
Ports are out of harm‘s way on a recessed connector
panel on the CTA 118 Sub‘s back. It offers one
Speakon
® NL 4 connector. Pin assignments are pin
1+ = mid/high +, 1- = mid/high. A Powercon mains
socket with another Powercon output connects to
the power supply. A female XLR and a male XLR port
serve to route signals. Two Neutrik Ethercon ports
serve to network several CTA 118 Subs.
2.1 Specifications, CTA 118 Sub
A professional active subwoofer equipped with a
DDO-Pro™ Controller and a 1000 W RMS PWM
power amp, the CTA 118 Sub delivers excellent
impulse response and exceedingly dynamic low-
frequency response. It features an 18" woofer
mounted in a precision-tuned bass reflex enclosure.
Another 1000 W RMS PWM power amp drives
HK AUDIO CTA 208 or ConTour Series™ speakers.
The rectangular block housing is made of 18 mm
birch plywood coated with black PU lacquer. An
impact-resistant steel grille covers the front. A
removabledolly protects the electronic components
and simplifies transport
Its frequency response ranges from the crossover
frequency down to 42 Hz (-3 dB) and 36 Hz (-10 dB).
Maximum SPL under half-space conditions is 130 dB
at 10% THD.
Connectors: 1 Neutrik NL 4 Speakon ® output, 1 XLR
female, 1 XLR male, 2 Powercon, 2 RJ45 Ethercon
Dimensions (W x H x D): 51 x 73 x 71 cm
Weight: 59 kg
Model: HK AUDIO CTA 118 Sub
2. CTA 118 Sub
Fig. 3: CTA 118 Sub