L ACOUSTICS - SB15P Self-powered LF extension - Finish : white (New)

Self-Powered LF Extension

• Compact and discrete dedicated P series subwoofer
• High power handling and high efficiency for increased reliability
• Low thermal power compression, low distortion
• Digital system drive and equalization with quick set-up
• Suitable for live monitoring and distributed SR
• White and architectural RAL color program

Subwoofer Technology

In 2004 L-ACOUSTICS® introduced a new diffraction model, the DED. The Distributed Edge Dipole was published in the AES journal and provides a logical, predictable methodology for low frequency sound design. The DED model describes how a part of the wave produced by the speaker spreads toward the cabinet edges where it is diffracted with group delay and phase inversion. The DED model is implemented for modeling the physics of cardioid applications and the size of enclosures.

The latest subwoofer design incorporates a vent with a progressive profile and ultra-low vibration walls for a significant gain in peak SPL, laminar airflow and drastic reduction of turbulence noise.

Low frequency limit  (-10dB)

40 Hz

Maximum SPL

131 dB

Component

LF: 1 x 15’’ transducer mounted in a bass-reflex enclosure, 4’’ coil

Electrical specifications

Input stage: balanced input, max level of +12 dBu (at 0 dB setting)

DSP: 24 bit/48 kHz

Amplifier power rating: 1000 W, 8 ohms

Physical data

H x W x D: 440 x 520 x 520 mm - 17.3 x 20.5 x 20.5 in

Weight (net): 36 kg - 79.4 lb.

Connectors: 2 x XLR in parallel,

2 x Powercon® 120 or 230 V selectable by switch

Material: 18, 24 and 30 mm Baltic birch plywood

Finish: Grey-brown RAL 8019®

Front: polyester powder-coated steel grill, Airnet® acoustically neutral fabric

Rigging: integrated pole mount socket, optional ETR15P bracket