Electro-Harmonix Headphone Amp Instruction Manual

HEADPHONE AMP

Congratulations on your purchase of the Electro-Harmonix HEADPHONE
AMP! Now you can rock out anywhere without disturbing your neighbors.

Simply use a 9V battery and any pair of headphones you like, as long as they
have an 1/8” plug attached to them.

—CONTROLS —

VOLUME — Sets the output level.

INPUT JACK – Connect the output of your instrument or effects pedal to

this 1/4" jack. The input impedance presented at the INPUT jack is 100 k.

OUTPUT JACK – Insert the 1/8” stereo plug from your headphones into this
jack.

-OPERATION AND WARNINGS-

Power, from the internal 9-volt battery is activated by plugging into the
output. The headphone cable should be removed when the unit is not in use
to avoid running down the battery. A pop may occur in the headphones
when inserting or removing the plug from the headphone jack.

To change the 9-volt battery, you must remove the 4 screws on the bottom
of the HEADPHONE AMP. Once the screws are removed, you can take off
the bottom plate and change the battery. Please do not touch the circuit
board while the bottom plate is off or you may damage a component.