Specifications

Wheatfield Audio Wheatfield Audio HA-4 Users Manual
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Using your HA-4
After connecting your HA-4, you're ready to listen.
Start with the volume control all the way down (counterclockwise), and the EQ
controls and crossfeed selector all at mid-range.
When you turn on the power (with the power switch, located on the back next to
the cord), the yellow POWER ON LED will illuminate. After a delay of about 5
seconds, the green OUTPUT ON LED will illuminate, at which time a relay will
energize that connects the headphones to the amplifier, and the amplifier will be
operating.
Adjust the volume up to your liking.
Play around with the EQ and crossfeed controls until you are happy with the
sound. The next section discusses in more detail what the controls do.
If you desire to listen without any of the EQ and crossfeed, or for comparisons,
push the BYPASS switch in and the amplifier will operate as a completely flat and
linear amplifier.
When you are done listening, you can place your headphones safely on the HA-
4's specially designed surface. A holder is provided on the back of the HA-4 for
you to store the headphone cord. Simply wrap the cord around the holder to
keep it out of the way.