Crown Audio Pulse 4X300 - Manual (Page 8)

8
Outputs
Your Pulse 4x300 amplifier can be fitted with either
binding post or Speakon
® connectors for each channel.
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 post option, for non bridged
operation, the loudspeakers should be connected
between the RED and BLACK binding post terminals.
If the amplifier is fitted with the Speakon ® connectors
then connect to pins 1+ & 1-.
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
Stereo wiring
A u d i o C o n n e c t i o n s . . .
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.
If Speakon ® connectors are used, switching the amplifier
in to bridge mode 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 and 3 outputs carry the bridged signal. During
bridge mode operation no connector should be inserted
into the channel 2 or 4 outputs. In bridge mode the
amplifier is non-inverting relative to the 1+ pin of the
Speakon connector or the channel 1 RED binding post.
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.
Binding posts
Speakons
®
Binding posts
Speakons
®