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Grund Audio STP-36 3 Way Full Range Speaker

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The Grund Aaudio Design 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 STP Series are built with high-quality materials including: multi-layer void-free plywood construction; T-baffle bracing; epoxy powder coated, steel perforated grilles; durable, soil-resistant black carpet covering; black metal corners; and complex second or third-order, optimized crossover networks for matched transition between drivers, with full protection circuitry. All models carry a five year limited warranty.


The Grund Audio Design STP-36 may be pole-mounted for use as a mid-sized, full-range, portable PA system or installed PA. A subwoofer may be added for additional low-end support. This model is ideal where vocal articulation is important. It is also well-suited for playback mix, main PA, or side-fill applications. Use the STP-36 for DJs, live bands, clubs, house of worship, corporate A/V, and educational facilities.


  • Power Handling: 300 Watts
  • Frequency Response: 40 Hz - 20k Hz
  • Sensitivity (1W @ 1M): 98 dB SPL
  • Nominal Impedance: 8 ohms
  • Dispersion: Horizontal 90 degrees, Vertical 40 degrees
  • Components: LF: 15" Cone, MF: 6" Cone, HF: 1" Compression Driver
  • Crossover Frequency: 800-3k Hz
  • Enclosure Type: Two 1/4" & Two - NL4 Speakon
  • Grille: Powder-Coated, Perforated Steel
  • Connectors: 2 - 1/4"
  • Dimensions: H - 30.00" W - 18.75" D - 18.50"
  • Weight: 64.0 Lbs