Yamaha IS1118
18" 8 Ohm Subwoofer

IS1118

Yamaha Installation Series Loudspeakers

The Installation Series provides a wide range of models with seamlessly integrated hardware to meet the expectations of contractors and end-users for audio quality, ease of installation, and system design. All models feature a phase differential of less than 90 at 2 kHz . This minimizes the reduction of sound level and unwanted coloration in the "overlapped" area when combining/arraying speakers. The overall effect on frequency response is held to a minimum, ensuring a consistent family sound of speakers.

• Ideal for medium to large-scale installations.
• Uniform phase response throughout the entire series.
• A wide selection of dispersion characteristics forlong-range, short range, and long/short range use.
• Standard U-bracket and array-frame hardware availablefor maximum installation convenience and efficiency.
• Switchable single-amp and bi-amp drive modes.
• Certified measurement and prediction EASE data.Including polar plots, CAD files, and DXF data.
• Constructed of high strength premium 11-ply / 5/8inch-thick Finland Birch enclosures on most models.
• Grilles have 63% transparency for better clarity ofsound.
• Speakers include a barrier-strip and NL4 Neutrik*with parallel connections.
• Horns are manufactured from fiber-reinforced plasticto minimize unwanted resonance.
• The entire line of speakers incorporates rotatablehorns, when space consideration dictates the speakers orientation.
• High frequency drivers feature one-piece titanium diaphragms formed toprecision tolerances for high performance, endurance and superior sonicquality.

Specifications:

• Frequency Response: 40 Hz-2.5k Hz
• Frequency Range: 33 Hz-3k Hz
• Power Rating: 700W(AES)
• Nominal Impedance: 8 ohms
• Sensitivity (1 W @ 1 m): 96 dB SPL
• Calculated Peak SPL: 130 dB SPL
• Calculated Continuous SPL: 124 dB SPL
• LF Component: 18" Woofer, 4" Voice Coil
• HF Component: n/a
• Dimensions: 23.3" H x 24.0" W x 27.9" D
• Weight: 84 lbs.
• Shape: Rectangular
• Material: 3/4 inch (19mm), 13-ply Finland Birch(Baffle) 5/8inch (16mm), 11-ply Finland Birch
• Finish: Textured Black
• Grill: 14 gauge powder coated perforated steel backedwith acoustically transparent reticulated foam
• Connectors: 1x Neutric NL4 and barrier strip, wiredin parallel
• Suspension Points: 12x M10
• U-bracket: HAF3-S18(W)

Our Part #  IS1118