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Grund Audio AC-15S Single 15" Passive Subwoofer

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The Altar Clarity Series of loudspeakers provides exceptional performance and versatility for house of worship live sound reproduction. Three beautiful finishes are available. White or black texture paint, or a natural, ready to paint or stain finish is available on the Baltic birch enclosures. Each model is equipped with component concealing grilles for visual aesthetics.

True, two-pole crossovers and pattern-controlled horns are used for accurate and smooth sounding musical performances and the spoken word. Vast assortments of model choices are available to fit every application.

The Altar Clarity Series offers many installation solutions including, pole mount sockets, 2x2 fly points, U-bracket mounts and wall bracket mounts.


  • Power Handling: 250 Watts
  • Frequency Response: 40 Hz - 2000 Hz
  • Sensitivity (1W @ 1M): 98 dB SPL
  • Nominal Impedance: 8 ohms
  • Dispersion: Omni-Directional
  • Components: LF: 15" Cone
  • Enclosure Type: Rectangle
  • Grille: Cloth Covered, Powder-Coated, Perforated Steel
  • Connectors: 5-Way Binder
  • Dimensions: H - 28.75" W - 18.50" D - 18.25"
  • Weight: 53.0 Lbs