Calla: 43-inch Audio Horn Speakers


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Call  for items in stock or to order custom colors. Custom horn speakers require 3 – 6 month production time.


The prototype Calla horn speaker was originally produced for Aero Dynamisms – my show of eight new and unique horn speakers in an 8 channel audio system for a sculpture/sound exhibition, in collaboration with composer Glenn Kotche.

The first Callas utilized re-cycled newsprint. Only four pairs of these have been produced.

Calla horn speakers now utilize Italian Poplar wood, which reveals a subtly undulating grain within a lovely blond glow and gives a more crisp and sleek appearance.

Custom finishes are available as special order.

In terms of physical stature, they fall in between the 36″ Little Horn and the 40″ Liederhorn speakers.  Their more pronounced truncation produces an enhanced spatial sound-stage. In other words, bigger sound in a smaller package.

  • Dimensions

    - 43" tall overall
    - 17" horn diameter
    - 8" cube base
    - 12" minimum shelf depth

  • Driver

    Fostex FE-108EZ 4" full range driver

  • Impedance

    8 ohms

  • Sensitivity

    1 W/1m 90 dB

  • Frequency Response

    77Hz - 23kHz

  • Power handling

    24 watts max