HQ -HA30W Installations- Und Bedienungsanleitung Seite 7

100V Line
These loudspeakers are most commonly used in the Europe for PA distribution. When the
amplifier is at full output, 100V RMS will be present at the output terminals. Only use 100V line
loudspeakers with this output. All loudspeakers should be wired in parallel and the sum of the
power tapping of each loudspeaker must not exceed the rated output of the amplifier, due to the
nature of the loudspeaker and transformer impedance. It is advisable not to load the amplifier to
more than 70% of its rated output when using music sources.
70V / 25V Line
This system is common in the USA, it operates on exactly the same principals as 100V line except
that at rated output the amplifier will have 70V RMS or 25V RMS on its output terminals.
Low Impedance (8Ω)
This output allows connection of standard low impedance loudspeakers, the minimum load
impedance must be 8Ω. When two or more loudspeakers are used, ensure that they are wired in
such a way that the load impedance is between 8Ω and 16Ω.