
What is it?
The Rotary speaker effect is a classic of the early rock n'roll era. In its original form, the effect was created mechanically by rotating horns around the treble tweeter, and a rotating drum in front of the bass woofer.

The Rotary speaker effect is a classic of the early rock n'roll era. In its original form, the effect was created mechanically by rotating horns around the treble tweeter, and a rotating drum in front of the bass woofer.