User Manual

Repeat the previous step for all Channels that have headphones connected, making sure

to start the LEVEL knob completely counterclockwise and then slowly raising it until the

desired level is achieved. If you have connected different models of headphones to the

various Channel Headphone jacks, you may find that some require more gain than others

to achieve the same volume. This kind of disparity will occur if the various headphones

have different impedances. The lower the impedance, the louder the headphone will sound

compared to another, higher impedance headphone at the same VOLUME setting.

Another factor affecting headphone loudness is called sensitivity. This is generally meas-

ured by determining the decibel (dB) level generated by 1 mW of power input. The higher

the dB rating, the louder the headphone. See the Reference chart on page 5 of this manu-

al for more details.

Typical Set-up

The diagram below shows a typical set-up for a small band using the S amp headphone

amplifier with a stereo mixers for a sophisticated personal headphone monitoring system.

Operating the S amp