The Aria Super Fuzz Sustainer is a variant on the Big Muff, probably based on the Elk Sustainar as it shares the same values mostly (based on a Triangle BMP).
The tone stack is a bit different, and it’s clearly missing a recovery stage at the end, not unlike a Colorsound Supa Tone Bender. Unusual to see the 6n8 cap and 100k resistor before the tone stack as well, as this reduces the overall output – given there’s no gain recovery stage, this is probably not ideal. Bypassing or removing the 6n8 / 100k resistor doesn’t appear to affect the output response, but it does provide a large jump in output level.
ARIA SUPER FUZZ SUSTAINER – VERO LAYOUT
ARIA SUPER FUZZ SUSTAINER – SCHEMATIC
Schematic from the thread on FSB
Pretty similar to a big muff, but with a lower frequency mid-range scoop
