Just a quick little moderator sound test on the Huben GK1 in .25 cal. Trying to be fast as it's into the evening here but just had to shoot a short vid.

Presently, it's on a lower power, enjoyable tune--.25 JSB Hades around 750fps.

It's a cheap meter so not intended to be scientific whatsoever. Definitely a subjective sample. Meter was 45 degrees from my 12 o'clock at about 3 feet on a tripod.

Mods tested (and in order):
3D Printed by subscriber
FX by DonnyFL
Impulse Air IA-1350 w/5 baffles