To our ears and eyes, the Little Blaster from Chinese firm Joyo is based on the high-gain MI Audio Crunch Box distortion, and does a fine job of replicating its thick, British tone.
The mid-heavy, saturated drive tears through your speakers, while the presence control is a boon for tailoring the pedal's top-end to your amp - too much and it gets fizzy, but get it right and it sounds as if you've gained an extra distortion channel.