Audio Connections; Outputs; Stereo Operation; Bridge Mono Operation - Crown Pulse 21100 User Manual

Outputs

Both binding post and Speakon
for each channel, these are internally wired in parallel
so either or both may be used. Note that it is possible
to lever the caps out of the ends of the binding posts to
insert 4mm banana type plugs but this will invalidate
the product safety approvals in some territories. The
side entry positions for these connectors should
therefore be used if possible.

Stereo operation

If you are using the binding posts, for non bridged
operation the loudspeakers should be connected between
the RED and BLACK binding post terminals or the
®
Speakon 1+ & 1- pins. The amplifier will be non-
inverting with respect to the RED terminal and 1+
®
Speakon pin.
More than one speaker can be connected to each channel
as long as the total impedance per channel is not less
that 2 ohms. See section 7.0d of this manual for more
information about how to calculate impedance.
Bridge wiring
1 +
1 -
®
connectors are provided
Do NOT
connect
Do NOT
connect
8
A u d i o C o n n e c t i o n s . . .
Stereo wiring
1 + 1 -

Bridge mono operation

To use the amplifier in bridge mode, for binding post
connection, the speakers must be connected between
two RED terminals leaving the BLACK terminals
unconnected. In bridge mode the amplifier is non-
inverting relative to the 1+ pin of the Speakon
and the channel 1 RED binding post.
®
If the Speakon connector is used, switching the
amplifier in to bridge automatically takes care of the
®
Speakon wiring for you. Therefore the loudspeaker
connector is WIRED THE SAME WAY AS FOR NON BRIDGE
MODE, i.e. between 1+ and 1-. This significantly
simplifies the speaker wiring enabling the same leads
to be used for bridged and non-bridged modes. Channel
1 output carries the bridged signal. During bridge mode
operation no connector should be inserted into the
channel 2 output.
More than one speaker can be connected to the bridged
pair of channels as long as the total impedance is not
less that 4 ohms. See section 7.0d of this manual for
more information about how to calculate impedance.
1 - 1 +
®
connector