Description DESCRIPTION: MUSE 218SA is a direct radiation ground subwoofer, has two B&C 460mm long excursion speakers with 100mm voice coil and 4000W class D amplification, capable of 148.5dB SPL. The bass-reflex cabinet offers substantial energy up to 30Hz and is ideal for extending and reinforcing the low frequencies of the MUSE 210LND line array in ground-stack configuration. It has presets to create various configurations with cardioid directivity, where some subwoofers face rearwards from the audience to acoustically cancel the sound pressure behind the cluster, obtaining a reduction of the SPL on the back by over 15dB. The enclosure, optimized with BEM-type acoustic simulations to reduce resonance and turbulence of the ducts, is built with 18mm birch plywood with six handles and scratch-resistant paint. Reinforced front mesh with protective fabric and provision for optional four swivel-mount 4 ‘’ (100mm) casters in the rear panel. SPECIFICATIONS: CONFIGURATION: 1 Reflex BUILT-IN AMPLIFIER LF/HF: 4000 BUILT-IN AMPLIFIER PEAK LF/HF: 8000 FREQUENCY RESPONSE: 30Hz preset dependant LOW FREQUENCY WOOFER: 2×18\” – 4\” coil MAXIMUM SPL CONT/PEAK: 142.5 / 148.5 half-space DISPERSION: Omnidirectional INPUT IMPEDANCE: 22 AC POWER REQUIREMENTS: 800 INPUT CONNECTOR: XLR IN / OUT POWER CORD: 16.4 NET DIMENSION (WXHXD): 44,88 x 28,13 x 21,85 NET WEIGHT: 218,25 Kg TRANSPORT DIMENSION (WXHXD): 47,24 x 31,49 x 28,74 TRANSPORT WEIGHT: 238 with pallet FEATURES: Ground stack direct load subwoofer Very large area reflex port to ensure no power compression and very low port turbulence Double 18’’ (460mm) B&C very high excursion woofer with 4’’ (100mm) voice coil Frequency Response from 30Hz @-6dB Class D amplifier delivering 4000W RMS with switch mode power supply 0.7’’ (18mm) birch plywood enclosure, scratch resistant black paint, 6 handles and heavy duty metal grille with synthetic protection cloth M20 top mount stand socket Optional 4 swivel-mount 4’’ (100mm) casters Low frequency extension cabinet for the MUSE 210LND line array for ground stacked configurations
