Grund Audio STP-52 15" Two Way Speaker with 2" Compression Driver

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The Grund Audio Designs ST Pro Series products are designed with the aid of the most advanced technologies in the audio field. Sophisticated design and measurement equipment, including computer assisted design software, is used for each design to achieve optimized balance and interface between components to give better quality, performance, and longer life. The ST Pro series product line consists of models ranging from very high power medium/long-throw, to low power near field, and subwoofer models from very high to medium power. These products are used by musicians, DJs, rental companies, and many fixed installations including houses of worship, theaters, music halls, meeting rooms, amusement parks, hotels, stadiums, nightclubs, and auditoriums. The following are some of the quality features: multi-layer void-free plywood construction; T-baffle bracing; epoxy powder coated, steel perforated grilles; durable, soil-resistant black carpet covering; black corners; and complex third-order, optimized crossover networks for matched transition between drivers, with full protection circuitry. All models carry a five year limited warranty.


  • Power Handling: 300 Watts
  • Frequency Response: 40 Hz - 16k Hz
  • Sensitivity (1W @ 1M): 99 dB SPL
  • Nominal Impedance: 8 ohms
  • Dispersion: Horizontal 90° Vertical 40°
  • Components: LF: 15" Cone HF: 2" VC Compression Driver
  • Crossover Frequency: 1.8k Hz
  • Enclosure Type: Trapezoidal 8.5°
  • Grille: Powder-Coated, Perforated Steel
  • Connectors: Two 1/4" & Two - NL4 Speakon
  • Dimensions:
    • Height: 30.00" 
    • Width: 18.75" 
    • Depth: 18.50" 
    • Weight: 60.0 Lbs