Inside there are NOS (New Old Stock) components, so produced in the 60-70s, but still brand new. In particular, Big Willy has NOS capacitors and resistors.
The goal with this device was to have a vintage sounding BOOST, with a great volume gain
and with an high impedance output in order to pre-saturate and overdrive the amp tubes.
It has True bypass and a warm, powerful sound, clearly vintage-style.
Big Willy is fully customizable through the pots SHOT (gain) and LVL (output level) to reach the sound you like.