may result in damage to the 200 W speaker, as they will each receive
250 W. Electrovision accepts no responsibility for damage caused to
speakers by over-driving.
When choosing loudspeakers, always refer to the RMS rating,
“music power” or “peak music power” ratings which are normally
between two and four times higher than the RMS power capability,
should be ignored. (The NJA1000 has a Peak Music Power Output
(PMPO) rating of 1700 Watts per channel)
When the NJA1000 is operating normally, the
Signal
LED will be
illuminated.
If a fault occurs within the amplifier leading to a DC condition on the
speaker outputs, the speakers will be disconnected before any
damage can occur. If this occurs, consult a dealer.
Short circuit protection.
The NJA1000 is protected against short-circuits on the outputs. If
this happens, it will limit its output current to a safe level until the
short circuit is removed. A short circuit should be removed as soon
as it is discovered, as the amplifier is not intended to be run
indefinitely into a short circuit. Short circuit protection does not
protect the amplifier from having too many speakers connected to
the output.
If speaker leads are too long or too thin, their resistance may prevent
the short circuit protection operating in the case of a short circuit at
the loudspeaker end of the lead - in this case the impedance of the
cable may be indistinguishable to the amplifier from a low
impedance speaker.
Standards
The NJA1000 complies with:
EN60065 (Electrical Safety),
EN55103 (Electromagnetic Compatibility) and
EN61000-3-2 (mains harmonic currents)
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