Proel ACDT90 User Manual download pdf (Page 10)

This unit can be used both with constant impedance speakers (4 Ω) and

constant voltage speakers (25V, 70V, and 100V).

CONSTANT IMPEDANCE LINE

To use this amplifier with a constant impedance line (4Ω), please

connect the COM terminal to the negative post of your speaker, and

connect the 4Ω terminal to the positive post COM (fig. 2 ref. 17).

• To obtain the best performances, total speakers impedance

connected to the line, should be equal to the amplifier output

impedance.

• The speakers power sum should not be lower than the amplifier

output power.

• We suggest you don’t use long cables. Anyhow, for longer

distances application use a thicker cable.

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Proel ACDT90 User Manual Page 10