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XP-30 Owner’s Manual
Additional channels beyond the normal two may require a different
fuse value, please contact the factory for your specific application.
The input frequency rating of the power-supply is presumed 50-
60 Hz in all instances. Some individuals may wish to use a power
regeneration apparatus, and slightly higher lines frequency is
presumed acceptable. The preamplifier typically draws 45 watts
of power from the utility mains during operation as a 2 channel
preamplifier. Additional channel demands increase the demand for
line wattage by approximately 15 watts per channel.
We have provided a high quality standard IEC AC power cord that
fits into the IEC 320 line receptacle at the rear of the power supply
/ control chassis. This is the power cord we use for all product
evaluation. You may substitute an equivalent “after market” power
cord of your choosing; however, we strongly suggest that any cord
you select must carry all appropriate government certifications for
your location.
Under no circumstances defeat the safety ground provided by the
power cord. We have provided internal isolation to help prevent
ground loops. If ground loops exist in your system which suggest
to you that you might want to disconnect this earth ground, please
contact your dealer or the factory first. Be aware that some of the
internal noise filters of this product presume a good earth ground
through the power cord. Removing that ground may compromise
system performance.
Do not plug in the power cord yet.
Second
Place the components that comprise the XP-30 in the locations
where you plan to use them. They don’t need a lot of ventilation,
but a little is helpful.
On the rear of each control chassis are two identical DIN-25 sockets
in parallel with one another. You may connect either socket to the
control chassis, as previously indicated they are identical. The second
socket provides daisy chain capability for additional gain channels.
The DIN-25 connecting cables only communicate power, and
control commands to the gain stages. At no time does audio signal
cross the DIN-25 umbilical cables. Keeping each gain channel
chassis 100% isolated from every other gain channel chassis reduces
channel cross-talk to a near theoretical minimum.