The system targets the degrading effect of wall reflections – the loss of speech intelligibility when a listener receives equal or more sound from the reverberant field than the primary sound system (‘critical distance’) – through the use of a custom HF waveguide. The waveguide design is such that it directs the sound away from the walls and ceiling to direct the sound to where it is needed, not to the reflective surfaces of the surrounding area. This is achieved by an asymmetrical shape that provides 60° horizontal dispersion at the base of the flare and 30° at the top. Vertical dispersion above the box is limited to 15°. The horn wave-guide can also be rotated 90° for horizontal installation.

A multi-purpose lightweight flying/installation system has been developed specifically for the HPI-110 system. All HPI systems in the range have been manufactured to have a very high power-to-weight ratio. An array of three HPI-110 speakers has a combined weight of 47kg. Quest claims that the low cabinet weight and cusatom rigging makes the HPI-110 one of the most efficient powered systems available.

The rigging system is progressive with its ‘top spine hanging bracket’ system for single speaker systems. Additionally, various attachments can be connected to make up almost any type of pan/tilt wall mount, truss mount or multi-box hanging array

More: www.questaudio.net