Dynacord L2400 Manuale d'uso - Pagina 14

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REAR PANEL

POWER AMPLIFIER OUTPUT CONNECTORS

SPEAKON output connectors are provided for the power

ampliﬁ er channels A (left) and B (right).

The Bridged Out Connector for bridged operation is sealed

with a plastic cover to prevent connection errors.

LIMITER

The time constant of the built-in limiter to avoid overdriving

is adjustable. Position "SLOW" is the factory preset and this

should also be the normal position.

If the power ampliﬁ er is used as a MID/HI-frequency ampliﬁ er

in active multi-way systems, the limiter switch should be set

to "FAST".

If the power ampliﬁ er is used as LOW-frequency ampliﬁ er in

active multi-way systems, the limiter switch should be set to

"SLOW".

Slide switch to change from Normal Stereo mode to Bridged

mode. In Bridged mode the built-in power ampliﬁ ers operate

in "push- pull" and the double output voltage from channel A

and B appears at the Bridged output connector. The phases of

Channel A and B are in opposite and therefore the individual

channels must not be used as loudspeaker outputs.

HI-LO-CUT FILTER

This ﬁ lter attenuates subsonic and high frequency signals

so that the power ampliﬁ ers are not modulated with these

signals. This switch should normally always be in position ON.

The OFF position is only for applications where an upstream

unit, e.g. a crossover or a equalizer, has integrated HI-Cut and

LO-Cut ﬁ lters.

Hum loops can be avoided with the groundlift switch. If the

power ampliﬁ er is operated together with other units in one

19" rack, the switch should be in GROUNDED position. If

the power ampliﬁ er is used with units which have different

earthing potentials, the switch should be adjusted to the

UNGROUNDED position.