Vortex 315

Vortex 315, designed by Silvio Della Mattia and Viscount, is the ultimate rotary speaker built specifically for organs using high quality materials and components. The most reliable sound in a lightweight rotary speaker.

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Vortex 315 is a 2 amplified channels rotary speaker composed by a woofer with rotating drum and a driver with rotating horn, specifically designed in collaboration with Silvio Della Mattia, to reproduce the original rotary horn speakers. This system of sound amplification and diffusion became popular with the advent of the electromechanical organ and consisted of two sections, one dedicated to high tones (horn) and another concerning low tones (drum), which could rotate at different speeds and which produce a particular three-dimensional effect due to the rotation of the loudspeakers. This effect is the result of the sum of the Doppler effect, due to the relative displacement of the sound sources with respect to the listener, and the sound reflections resulting from the rotation.

The front panel gathers the main controls for quick speaker set-up, such as choosing the stop position (Brake), adjusting the horn rotation speed, EQ, volume, selecting one of the 6 tone response presets, and the connection connectors.
Slow / Fast rotation speeds or Brake are selectable via the lever control of your Legend or Legend Soul connected to the 11-pin connector, or via a foot-switch pedal or MIDI.
Also available for free download is the Windows and Mac Os (also iOs) compatible Vortex Editor application, which allows fine tuning of the most important configuration parameters.

Vortex 315 is the perfect speaker to connect to your Legend Soul, or any other organ, bringing that vintage style that will make the difference.



Type 2 amplified channels (woofer with rotating drum + driver with rotating horn)
Power (W) 300W Nominal (≈200W RMS)
Crossover Frequency 800Hz - 1200 Hz depending on the selected preset
Subsonic filter Yes
HF Protection compressor, short circuit, thermal
PC Control Yes
Connections 3 pins IEC 250 VAC, 1x unbalanced input jacks, jack pedal, USB B TYpe, MIDI IN, UNDECAL 11 pin connector
Controls Volume, Equalizer (bass - mid gain - mid frequency - treble), 11 pin input sensitivity, FACTORY RESET, rotative presets selector
Engine Controls The led is: green when the motors are brake; orange when the motors are slow; red when the motors are fast.
You can brake (independently from the horn) the rotor bass by it’s switch.
Choose the rotations of the horn on three speed by its switch.
Choose the horn position when it’s brake, if rear or random.
Speakers 1x15" Woofer, PA Driver with rotating horn
Cabinet Mdf
Protection Metal grids
Dimensions (WxHxD) cm 52 x 75 x 48 - 20.4" x 29.5" x 18.9"
Weight 30Kg - 66 Lbs
Colours / Finishes Black, Red Walnut