CPD WH

The CPD WH belongs to the new generation of subwoofers that have been tuned to the modern demands of contem- porary sound reinforcement. Despite its compact size, it produces an impressive, powerful and dry bass that never lacks musicality.

The loudspeaker cabinet is a hybrid principle, both vented and front-loaded, using a single 18” chassis and delivering performance of the highest quality.

A special feature of the CPD WH is its extremely durable 18” speaker chassis with long excursion, 100 mm voice coil and reinforced cone. Also special is the method of sound displacement.

“The air volume behind the membrane forms a resonance chamber with the reflection tunnel. This increases the radiation impedance (resistance) in the range of the resonance frequency and so the efficiency and damping at the rear of the loudspeaker.

The reflection tunnel opens into an air volume (chamber) in front of the membrane, which also increases the radiation impedance there for higher frequencies.
At the same time, the flow velocity from the bass reflex tunnel is reduced in this area by means of the shape of this chamber, which greatly reduces air noise.

This very clever design increases efficiency and sound quality, especially below 40 Hz, where compact designs often require drastic electronic correction for a smooth frequency response down to the sub-bass range.”

Great emphasis was placed on high transmission quality, simplest operation and handling.

The power module of the CPD WH consists of a switched- mode power supply with Power-Factor-Correction, a powerful Class D amplifier

provides the 18" chassis with sufficient power. The digital DSP is equipped with IIR filters that are precisely tuned and measured on the bass driver and its enclosure as a complete system. The filter controls; cross-over modes, frequency curve and limiter.

Another special feature is the automatic recognition and changeover of a pending digital audio signal according
to AES/EBU standard or using the Ethercon DANTETM protocol. Apart from the power switch, the following additional control elements are available: buttons for "input sensitivity" for individual adjustment to the location and the rest of the speaker system, for delay settings in m and ms, various low-pass filters and selection of the digital audio channel. Switching between analogue and digital inputs is automatic. The settings are clearly legible on the display. Further settings, such as a parametric equalizer, can be downloaded and saved via integrated Ethernet switch by the KS REMOTE software.

The small size of the CPD WH makes it particularly suitable for locations where space on and around the stage is limited. In addition, the CPD WH is the right subwoofer to fly as a low extension of the VC LINE and the P LINE.

The integrated CP-Flyware enables safe stacking and rigging of multiple CPD WH but also directly connects to the VC LINE and P LINE. Three CPD WH subwoofers stacked on top of each other provide the right height for stacking

C 1214 fullrange systems or groundtack line arrays.

As in all KS AUDIO loudspeakers, the cabinet construction is made of birch muliplex and has a very durable PU coating. The multigrip handles on the sides provide easy handling. M20 threaded stand flange, stacking feet, a solid speaker grill with foam are further features of this quality product.