KSL-GSUB Architectural specifications

The subwoofer system shall incorporate 3 x 15" neodymium LF drivers, two forward and one rear facing driver to produce a cardioid dispersion patterns. The front and rear drivers of the subwoofer shall be driven by separate channels of a dedicated and compatible amplifier, containing loudspeaker specific configurations and algorithms to provide cardioid behavior. The subwoofer shall exhibit extremely low power compression using very large vents.
The enclosure shall be constructed from marine plywood with an impact resistant and weather protecting PCP (Polyurea Cabinet Protection) finish. The cabinet front shall be protected by a perforated steel grill backed with an acoustically transparent foam. Two runners shall extend from the rear to the front panel of the cabinet protecting the bottom panel against scratching. Two correspondingly shaped recesses shall be incorporated in the top panel of each cabinet to accept these runners and prevent cabinet movement when stacking cabinets.
The power handling of the forward elements shall be 900/3500 W while the power handling of rear facing element shall be 500/2000 W (RMS/peak 10 ms).
The frequency response (–5 dB) measured on axis shall extend from 36 Hz - 105 Hz in standard mode and from 33 Hz - 75 Hz in INFRA mode with a maximum sound pressure level (SPLmax peak/1 m) of at least 139 dB.
The connection panel on the back shall be recessed and fitted with one speakON NLT4 F socket.
The dimensions (W x H x D) shall not exceed 1000 x 450 x 1020 mm (39.4" x 17.7" x 40.2") and shall weigh no more than 78 kg (172 lb).

The loudspeaker shall be the KSL-GSUB by: d&b audiotechnik GmbH & Co. KG.