
Robert Keeley spent something like three years designing the ultimate echo/delay pedal for Andy Timmons and all that R&D time was not wasted. The Keeley Electronics Halo was and remains one of the most expressive stompboxes of recent years.
Timmons rarely has it off and calls it the “ultimate dual echo sound” – and we would not/could not argue with him. And yet, when you have a pedal that is so groundbreaking, with so many features, it can take a bit of time to get used to, maybe even the manual.