User's Manual

User manual - SR150 2-CHANNEL UNIVERSAL POWER AMPLIFIER | P 8
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ATTENTION
The GOLDMUND SR150 is an extremely high speed amplifier.
Any bad ground connection can generate high frequency oscillation which is
dangerous for tweeters.
It is also generally dangerous to run analog input cable and speaker cables in parallel for a
long distance. If these cables are not of high quality or badly shielded, an “Antenna-Effect”
can generate dangerous high-frequency oscillations.
❑ Protection against DC
The GOLDMUND SR150 is a DC-coupled amplifier. Without protection and if it is associated
with a badly designed or defective analog preamplifier (often true for tube preamps and
some 5 channel processors), the speakers could easily be damaged by the amplified DC.
The SR150 protects itself from such an accident by a feedback DC control that limits the DC
amplified by the circuit.
This protection circuit is totally transparent and has no sonic effect.
❑ Protection against short-circuits
If one output is short-circuited by accident the amplifier self-limits its output so the current
doesn’t become too high.
However, such accidents should be limited over time to avoid excessive heat build-up
occurring. In extreme cases, such mishandling could destroy the amplifier, which is not
covered by the warranty.
There is no risk to leave the speaker terminals unconnected when the amps are on.
SAFETY AND PRECAUTIONS