Every musician battles hum in their signal chain. The Hum Debugger
turns it into dead silence, courtesy of a little EHX magic. Not a noise
gate, and not a noise suppressor -- but a real hum extractor. Silence is
golden.

Quick Specs - True bypass
- Absolutely eliminates hum from any audio source
- Tough and compact die-cast chassiS
- 7.5AC-400 power supply included
- Dimensions in inches: 4.0 (w) x 4.75 (l) x 2.25 (h)
- Dimensions in mm: 102 (w) x 121 (l) x 89 (h)

-CONTROLS and I/O Jacks-

NORMAL/STRONG TOGGLE SWITCH - Sets the amount of Hum Elimination. In
NORMAL mode the Hum Debugger removes only the odd harmonics from the hum present in your signal. In STRONG mode the Hum Debugger removes both odd and even harmonics from your signals hum content.

STATUS LED - When the LED is lit the Hum Debugger is active. When the LED is off the Hum Debugger is in True Bypass mode.

FOOTSWITCH - Toggles the Hum Debugger between active and True Bypass modes.

CONNECTIONS - Connect your instrument to the INPUT Jack. Connect your
amplifier or the rest of your effects chain to the AMP Jack.

POWER - Plug the barrel connector from the AC Adapter that came with
your Hum Debugger into the power jack at the top of the Hum Debugger.
Plug the AC Adapter into a solid wall outlet. You must use the AC
Adapter that the Hum Debugger came with and the AC Adapter must have an
output of 7.5VAC with the ability to supply at least 200mA of current.

-Using the Hum Debugger-

There are no special tricks necessary when using the Electro-Harmonix
Hum Debugger. You can use it like you would any other effects pedal.
The only thing to remember is you must use the AC Adapter that the Hum
Debugger comes supplied with.

When using the Hum Debugger first set the toggle switch to NORMAL
mode. NORMAL mode should work well in most situations. If you find that
the Hum Debugger is still letting some hum through then move the switch
up to STRONG mode, this should remove the rest of the hum.

If you use more effects pedals than just the Hum Debugger we advise
that the Hum Debugger be inserted at the beginning of the effects chain.