The BlockHead Owner’s Manual
3
1.
The Volume Controls.
Big, beautiful, anodized, and aluminum. They feel and
sound as good as they look! Increase the volume for each channel by turning the
knobs clockwise.
2.
The Gain Switches
. The 3-position Gain Switch accomodates various head-
phones’ power needs. For instance, the Low Gain setting would be used for
Grado headphones, allowing a larger range on the volume control pot.
Experiementing with your headphones and the gain switch may help you to deter-
mine which setting you prefer. If have any questions regarding your headphones,
feel free to call and ask us.
3.
The Processor Switches.
When switched toward PROCESS, the Audio Image
Processor is engaged for normal stereo headphone listening. In the OFF position,
the Processor is bypassed for listening to mono or binaural recordings. (These
switches should be in the OFF position when using the headphone amp as a
preamp.)
4.
The Filter Switches.
The filter switch is used to compensate for the warming
action of the processor. In the center position there is no filter in the circuit;
generally this is preferred. But if the processor is causing too much bass or
blurring of the central image, a mild high frequence boost filter can be turned on.
The “bright” setting accentuates the highs at about 3 kHz; with the “brighter”
setting the filter starts an octave earlier and catches some of the upper mids.
Basically, set it to what ever sounds best to you.
5.
The Phase Switches
. Audio sources will commonly invert the phase on a
recording. Use this switch to correct the problem.
6. The Headphone Jacks.
The Neutrik headphone jacks on
The BlockHead
clamp down tightly for optimum signal transfer. They will accomodate both a
1/4” and well as XLR connectors- although the XLR connectors are certainly the
recommended jack for use with the BlockHead.
7. The LED.
The LED simply indicates if your unit is on or off.
About your Blockhead amp...
