Steren AMP-025SD Manual De Instrucciones página 26

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1.For connecting the speakers can do it in
different ways for example:
Two 8 ohms speakers connected in
parallel to obtain an impedance of 4 ohms.
Two 8 ohm speakers connected in series
to obtain an impedance of 16ohms.
Four 8ohm speakers in series / parallel for
8 ohms impedance.
2. When you require to connect more than four speakers or combinations
of them and because of the difficulty of getting through series / parallel
impedance standard, you must use 70-volt line amplifier.
To use 70-volt line, it is necessary to use a line transformer, which couples
the impedance of the speakers to the line of 70volts.
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