RCF C 5212-99 [11/28] Notes about low impedance connections

ENGLISH

NOTES ABOUT LOW IMPEDANCE CONNECTIONS

- The total loudspeaker impedance must not be lower than the amplier output

impedance. Note: a loudspeaker total impedance equal to the amplier output one

permits to get the maximum deliverable power (but an higher loudspeaker impedance

entails less power).

- The total loudspeaker power shall be adequate for the maximum deliverable power of

the amplier.

- The loudspeaker line shall be short (for long distances, it may be necessary to use cables

with large cross-section wires).

- Always use cables having wires with an adequate cross-section, considering the cable

length and the total loudspeaker power.

- Loudspeaker lines must be kept separated from the mains cables, microphone cables or

others, in order to avoid inductive phenomena may cause hum or noises.

- Use loudspeaker cables with twisted wires to reduce hum caused by inductive effects

due to coupling with electromagnetic elds.

- Do NOT connect the low impedance input directly to 70 / 100 V constant voltage lines.

- +

TOTAL IMPEDANCE: 4 Ω

8 Ω

- +

TOTAL IMPEDANCE: 8 Ω

8 Ω