The Q-Series continues the established d&b audiotechnik approach to the design and manufacture of loudspeaker systems, adding another dimension to d&b's maxima. It is designed for a wide range of small to medium scale applications and a clear perspective to provide flexible, configurable array solutions to the most arduous sound reinforcement situations. Control of dispersion behaviour is a particular fixation at d&b, while at the same time keeping the size and weight of systems to an absolute minimum. It also embodies the d&b holistic approach to sound reinforcement solutions: integrating loudspeakers, electronics, mechanical deployment assemblies, remote control functions and set up design tools for precise calculation of array performance.

The scope of applications for the Q-Series is intentionally very broad, ranging from single loudspeakers right through to larger multiple cabinet arrays for locations which all share the same fundamental requirements, acoustical and mechanical compatibility to achieve precise control of directivity that is maintained to the lowest possible frequency.

Q-Series A	Q-Series B

Q1 loudspeaker

The Q1 is a line array loudspeaker for use in vertical columns giving a 75° constant directivity dispersion pattern in the horizontal plane. The Q1 cabinet is a passive 2-way design that houses 2 × 10" LF drivers and a 1.3" HF compression driver with a toroidal wave shaping device to achieve a 75° × 15° (h × v) dispersion characteristic. The two 10" neodymium LF drivers are positioned in a dipolar arrangement providing an exceptional dispersion control even at lower frequencies, with the 75° nominal dispersion angle being maintained down to 400Hz. Q1 cabinets can be combined with the Q subwoofer system; in line array set ups with the Q-SUB flown on top of the array or as a separate column, or in ground stacked applications where the Q-SUB also mechanically supports the Q1s. The Q-SUB extends the system frequency response to below 40Hz, for further extension of bandwidth and headroom ground stacked B2 subwoofers can be used (driven in INFRA mode). The Q1 cabinet is constructed from marine plywood and has an impact resistant paint finish. The front of the loudspeaker cabinet is protected by a rigid metal grill covered with a replaceable acoustically transparent foam. The cabinet incorporates a pair of handles and mounted on the rear panel are two EP5 or NL4 connectors wired in parallel.

Q-7 Loudspeaker	Q-10 Loudspeaker

The Q7 and Q10 loudspeakers use a 1.3" HF driver fitted to rotatable 75° × 40° and 110° × 40° (h × v) constant directivity horns allowing them to be configured for use both vertically or horizontally. When deployed upright, the Q7 and Q10 are accurate stand-alone full range loudspeakers with vertical directivity control extending approximately one octave below similarly sized biaxial loudspeakers.

Q-Sub-A	Q-Sub-B

The Q-SUB cabinet completes the Series sharing the same width as the other three loudspeakers and has compatible flying fittings enabling its use at the top of columns with other Q-Series loudspeakers. The Q-SUB is a bass-reflex design with an 18" high excursion driver and uses d&b SenseDrive technology when driven by the D12 amplifier. Q-SUBs can be combined to produce Cardioid Subwoofer Array performance when the CSA mode is selected in the D12.

Configuration Examples (Click to enlarge)