Empress Effects · Distortion

Heavy Menace

9V · ≥250 mA supply · maker

Empress Effects Heavy Menace power requirements

9V DC · centre negative · needs a supply of at least 250mA
the voltage it ships for · from the maker
“Input Voltage: 9VDC Centre-Negative … Required Current: 250mA” source
Checked 2026-10-13
12V DC · centre negative · needs a supply of at least 250mA
from the maker
“250mA … 9v-12v dc … Any power supply rated at 9V DC, supplying negative tip polarity and at least 250mA of current should work.” source
Checked 2026-10-13

66.04 × 121.92 × 63.5 mm (2.60 × 4.80 × 2.50 in)

Width × depth × height, from the manufacturer.

Each has an output that can power it, checked against its published figure. Plan the whole board to see what runs everything.