Inrush Current; Wiring; Main Power Switch; Speker Damage - powersoft M30D HDSP+ETH User Manual

No naked flame sources such as lighted candles should be
placed on the amplifier.
Do not spill water or other liquids into or on the amplifier.
WARNING
To prevent fire or electric shock:
f The ventilation openings must not be impeded by any item
such as newspapers, tablecloths, curtains etc; keep a distance
of at least 50 cm from the front and rear ventilation openings
of the amplifier.
f Do not expose this amplifier to rain or moisture.
f This equipment must not be exposed to dripping or splashing
liquids: objects filled with liquids, such as vases, must not be
placed on the amplifier.

2.2 Inrush current

Average half-cycle r.m.s. inrush current on initial
switch-on:
M14D and M14D HDSP+ETH: 28 A
M20D and M20D HDSP+ETH: 35 A
M30D and M30D HDSP+ETH: 36 A
M28Q and M28Q HDSP+ETH: 30 A
M50Q and M50Q HDSP+ETH: 39 A
Average half-cycle r.m.s. inrush current after a supply
interruption of 5 seconds:
M14D and M14D HDSP+ETH: 13 A
M20D and M20D HDSP+ETH: 15 A
M30D and M30D HDSP+ETH: 16 A
M28Q and M28Q HDSP+ETH: 14 A
M50Q and M50Q HDSP+ETH: 18 A

2.3 Wiring

This device must be powered exclusively by earth con-
nected mains sockets in electrical networks compliant to
the IEC 364 or similar rules. It is absolutely necessary to verify this
fundamental requirement of safety and, in case of doubt, require
an accurate check by qualified personnel.
POWERSOFT cannot be considered responsible for eventual
damages caused to persons, things or data due to an improper
or missing ground connection.
f Before powering this amplifier, verify that the correct voltage
rating is being used.
f Verify that your mains connection is capable of satisfying the
power ratings of the device.
f Do not use this amplilfier if the electrical power cord is frayed
or broken.
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f Do not remove the cover. Failing to do so will expose you to
potentially dangerous voltage.
f Provide a sectioning breaker between the mains connections
and the amplifier. The suggested device is a 16A/250V AC, C
or D curve, 10 kA.
f Switching mode amplifier is capable of producing hazardous
output voltages. To avoid electrical shock, do not touch any
exposed speaker wiring while the amplifier is operating.
CLASS 2 WIRING
Output terminals are hazardous: wiring connection to
these terminals require installation by an instructed per-
son and the use of ready made leads.
Take care to secure the output terminal before switching the
device on.

2.4 Main power switch

The main power switch on this unit does not provides
a complete insulation of the equipment from the main
power. You must disconnect the main power source to turn off
all power. So make sure that the unit has been installed so that
the power cord can be easily disconnected from the outlet in case
of accident. To avoid fire hazard, the power cord should also be
unplugged from the outlet when the device is not used for a long
period (for example, when you go on vacation).

2.5 Speker damage

Powersoft switching mode amplifiers are among the most
powerful professional amplifiers available and are capable
of producing much more power than many loudspeakers can han-
dle. 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 for power handling recom-
mendations.
Even if you reduce the output volume 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.
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, con-
tact your Powersoft dealer.
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