Steren SEL-400 Manual De Instrucciones página 16

If your amplifier can use 4 ohm loads
Selection 1
Selection 2
Selection 3
Selection 4
If your amplifier can use 2 ohm loads
Selection 1
Selection 2
Selection 3
Selection 4
Calculating Impedance
If you want to calculate the impedance of speakers with different
impedance here is how to do it.
Parallel Impedance is equal to (R1 x R2) / (R1 + R2).
Say you had a 6 ohm and an 8 ohm speaker. The parallel impedance
if you select these two speakers would be: (6 x 8) / (6+ 8) =48 / 14 =
3.4 ohms.
If the calculated impedance is less than the minimal amplifier allowed
impedance, turn the PROTECTION mode on.
4 ohms 6 ohms
Protection OFF Protection OFF
Protection ON Protection ON
Protection ON Protection ON
Protection ON Protection ON
4 ohms 6 ohms
Protection OFF Protection OFF
Protection OFF Protection OFF
Protection ON Protection OFF
Protection ON Protection ON
8 ohms 16 ohms
Protection OFF Protection OFF
Protection OFF Protection OFF
Protection ON Protection OFF
Protection ON Protection OFF
8 ohms 16 ohms
Protection OFF Protection OFF
Protection OFF Protection OFF
Protection OFF Protection OFF
Protection OFF Protection OFF
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