d&b audiotechnik 27S-SUB Manual Manual

Also see for xS 18A-SUB: Manual

Contents

d&b audiotechnik 27S-SUB Manual Manual Manual pdf 5 page image

2.1. Product descriptionThe 27S-SUB and 27A-SUB are compact high performancecardioid subwoofers for use with d&b xS-Series and xA-Seriesloudspeakers. The cabinets house two long excursion neodymiumdrivers in an integrated cardioid setup: a 15“ driver in a bass-reflex design facing to the front and a 12” driver in a two chamberbandpass design radiating to the rear. The arrangement andtuning provide a cardioid dispersion pattern using a singleamplifier channel.The 27A-SUB incorporates the same acoustic components as the27S-SUB, however, the cabinet is equipped with an integratedrigging system for the design of vertical arrays. The 27A-SUB canbe combined with 10A and 10AL loudspeakers.The frequency response extends from 40 Hz to 140/100 Hz.The enclosures are constructed from marine plywood with animpact resistant black paint finish. The fronts of the cabinets areprotected by a rigid metal grill backed by an acousticallytransparent foam.The 27S-SUB is equipped with four rubber feet to prevent cabinetmovement and protect the bottom panel against scratching.The cabinets are Ball Impact Resistant according to DIN 18032-3.Cardioid dispersionCardioid dispersion avoids unwanted energy behind the systemand greatly reduces the reverberant field at low frequenciesproviding highest accuracy in low frequency reproduction. 27Sand 27A subwoofers can be used as stand-alone systems or instacked or flown combinations with a minimum distance of 60 cm(2 ft) between adjacent cabinets or to side walls. When set up infront of walls, the minimum distance from the cabinet rear panel tothe wall is 15 cm (0.5 ft).27S-SUB rigging componentsThe 27S-SUB side panels are each equipped with a pair of M10threads to accept the Z5410 Horizontal bracket 18S/27S. Thethreaded inserts are covered by dummy caps in cabinet color. Thecaps must be removed before mounting any accessories.27A-SUB rigging components27A-SUB cabinets are connected to form a vertical array eachusing the Z5418 Connector plates xA-SUB. Up to four 27A-SUBcabinets can be connected. When integrated at the top of a 10Aor 10AL array, up to two 27A-SUB cabinets can be combined withup to six 10A/10AL cabinets.Fig. 1: 27S-SUB/27A-SUB loudspeakerRigging examples:27S-SUB ceiling mounted with Z5410 Horizontal bracket 18S/27S.10AL/27A-SUB array.Fig. 2: Cardioid dispersion pattern2. 27S-SUB/27A-SUB loudspeakerd&b 27S-SUB/27A-SUB Manual (1.2 EN) 5