Safety Rules; Speaker Damage; Speaker Output Shock Hazard - powersoft M50Q HDSP+ETH User Manual

M Series User Guide
amplifier on heat generating sources. Install this amplifier as far as
possible from tuners and TV sets. An amplifier installed in close
proximity of such equipment may experience noise or generic
performance degradation.
WARNING: To prevent fire or electric shock:
The ventilation openings must not be impeded by any item
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such as newspapers, tablecloths, curtains etc; keep a distance
of at least 50 cm from the front and rear ventilation openings
of the amplifier.
Do not expose this amplifier to rain or moisture.
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This equipment must not be exposed to dripping or splashing
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liquids: objects filled with liquids, such as vases, must not be
placed on the amplifier.
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1.3 Safety Rules

This device must be powered exclusively by earth connected
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mains sockets in electrical networks compliant to the IEC 364
or similar rules.
It is absolutely necessary to verify this fundamental
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requirement of safety and, in case of doubt, require an
accurate check by qualified personnel.
The manufacturer cannot be held responsible for damages
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caused to persons, things or data due to an improper or
missing ground connection.
Before powering this amplifier, verify that the correct voltage
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rating is being used.
Verify that your mains connection is capable of satisfying the
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power ratings of the device.
Do not spill water or other liquids into or on the amplifier.
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Do not use this amplifier if the electrical power cord is frayed
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or broken.
Do not remove the cover. Failing to do so will expose you to
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potentially dangerous voltage.
No naked flame sources such as lighted candles should be
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placed on the amplifier.
Provide a sectioning breaker between the mains connections
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and the amplifier. The suggested device is a 10 A/250 V AC
(230 V AC mains voltage) or 16 A/250 V AC (110 V AC mains
voltage), C or D curve, 10 kA.
Contact the authorized service center for ordinary and
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extraordinary maintenance.
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1.4 Speaker Damage

Powersoft Class D amplifiers are amongst the most powerful
professional amplifiers available and are capable of producing
much more power than many loudspeakers can handle. It is the
user's responsibility to use speakers suitable to the amplifier and
to use them in a sensible way that will not cause damage.
Powersoft will not be held responsible for damaged speakers.
Consult the speaker manufacturer
5
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recommendations.
Even if you reduce the gain using the amplifier's front panel
attenuation controls, it is still possible to reach full output power if
the input signal level is high enough.
A single high-power tone can damage high frequency drivers
almost instantaneously, while low frequency drivers can usually
withstand very high, continuous power levels for a few seconds
before they fail. Reduce power immediately if you hear any
speaker "bottoming out" - harsh pops or cracking distortion that
indicate that the speaker voice coil or diaphragm is striking the
magnet assembly.
Powersoft recommends that you use amplifiers of this power
range for more headroom (cleaner sound) rather than for
increased volume.

1.5 Speaker Output Shock Hazard

A Class D amplifier is capable of producing hazardous output
voltages. To avoid electrical shock, do not touch any exposed
speaker wiring while the amplifier is operating.
This manual contains important information on operating your
Powersoft amplifier correctly and safely. Please read it carefully
before operating your amplifier. If you have any questions, contact
your Powersoft dealer.
for power handling