In the words of Ashville Music Tools:

The ADG-1 is the latest installment in Hawkers legacy of highly sought-after analog delay designs. Utilizing a pair of Xvive high voltage BBDs, this delay features up to 700ms of harmonically rich, perfectly floating echoes with an extensive and fully analog control set unprecedented for a pedal of its size. From a bright country slapback to washy dotted eight leads to psychedelic modulated odysseys, the ADG-1 is the new standard in compact analog delays.