Open Speaker (WA-9899 Accessory)

SKU: WA-9900 Category: Tag:



The Open Speaker, designed for the study of sound wave properties, features a high-quality, 13.3 cm woofer mounted on a sturdy base with standard banana jack inputs. The Open Speaker is designed without a speaker cabinet to reduce the resonance of the air surrounding the rear of the speaker, thus making the Open Speaker perfect for resonance experiments wherein students can clearly hear resonant frequencies.

Typical Applications

  • Study wave sound properties including frequency, amplitude, pitch, and wavelennth
  • Explore the resonance of an air column using resonance tubes


  • 13.3 cm woofer with a polypropylene cone
  • High efficiency 10 oz. magnet
  • Rugged aluminum brackets that hold the speaker perpendicular to the table
  • Standard banana plugs for power input


User Resources