The Keeley Magnetic Echo, also known as the Mag-Echo, emulates vintage tube tape echo sounds through a unique delay circuit combined with modulation effects. This pedal achieves a warm, guitar-friendly delay by incorporating a touch of Lo-Fi delay and a filtered echo response. One of the standout features is the modulation labeled as 'Wow and Flutter,' which creates a slight pitch shift, reminiscent of the old-school tape reel sounds. It’s equipped with a straightforward control setup that includes Delay Time (40-600ms), Regen for adjusting the number of repeats, and Level for managing the mix of wet and dry signals. Additionally, the modulation features Depth for controlling the intensity and Rate for setting the speed, allowing creative users to experiment with their sound and achieve truly unique tones suitable for genres ranging from Rockabilly to classic rock.