Electronic Protection And Reliability; Phase Control - Halcro DM8 Owner's Manual

dm8

Phase Control

To toggle the unit between in-phase and out-of-phase mode depress the phase switch on the
front panel (Fig 1,10) or depress the function key (Fig 7, 5) on the remote control twice, the
display (Fig 3) will display In or Out, now press either of the volume buttons on the remote
control to toggle the unit between in-phase and out-of-phase mode.

Electronic Protection and Reliability

Components
Our components are selected not only for performance, but reliability as well.
For Example:
All HALCRO™ electrolytic capacitors are rated at a minimum of 105 degrees C instead of the
usual 85 degrees C rating. The operational life of electrolytic capacitors is severely shortened at
temperatures near their maximum temperature rating. This is shown in the table below.
All HALCRO™ integrated circuits are at least "industrial grade" rather than the usual
"commercial grade." Industrial grade components are rated at least from –40 degrees C to +85
degrees C whereas commercial grade components are only rated between 0 to 70 degrees C. In
addition, the electronic specifications of industrial grade components are superior to
commercial grade.
Electrolytic
capacitor
temperature
rating
85 C (most
commonly
used)
105 C (used in
HALCRO™
preamplifiers)
Mains transient overload protection
The mains input is protected against all but the most severe mains input transients. Two
independent circuits achieve this.
Mean lifetime
at 40 degrees
Centigrade
50,000 Hours
180,000 Hours
Typical data
Mean lifetime
at 85 degrees
Centigrade
2,000 Hours
8,000 Hours
TM
Mean lifetime
at 105 degrees
Centigrade
(0)
2,000 Hours
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