CKd Owner’s Manual
Amplifier Operation
Input Sources
CKd Power Processing amplifiers are designed to accept a balanced input
signal. For use with an unbalanced source, please see the diagram below.
Output Connections
Speakers are connected using the Output Barrier Strip connectors. Spade lugs,
ring tongues or bare wire may be connected to the output barrier strip
elements. Spade Lug measurements for Output barrier strip are as follows:
0.44” (11mm) screw spacing, 0.35” (9mm) lug space. For output spade lugs,
please review the suggested parts below:
Panduit Part Numbers:
PN10-10LF-2K, PN10-10LF-D, PN10-10LF-E, PN10-10LF-L - Locking Fork
Terminal,
nylon insulated, metal insulation grip sleeve, 12 – 10 AWG wire range, #10
stud size.
3M Part Numbers:
LFV10-6, LFV10-8, LFV10-10 - Locking Fork, Vinyl Insulated, Butted Seam,
12 – 10 AWG wire range
Consult the wire gauge charts in Appendix D for speaker wiring
recommendations. Make sure the amplifier is turned off before you change any
output connections or jumpers. Also ensure that the impedance of the load
being connected is not less than the amplifier’s recommended minimum load.
Output Configuration
In standard channel mode, all channels operate independently. Individual
input attenuators control the respective levels of each channel. By default,
signal at Channel 1 input produces output at Channel 1 output, while signal at
Channel 2 input produces output at Channel 2 output and Channel 3 input
produces output at Channel 3 output, etc.. Please be sure to properly set the
channel Mode/Gain Switches (100V, 70V, LowZ) as this sets both gain and
impedance dependant protection thresholds. See table below for minimum
nominal load impedance for Mode/Gain Switches (100V, 70V, LowZ) settings of
CKd Series amplifiers.
Mode
Minimum Impedance
100V Mode:
8 Ohms
70V Mode:
4 Ohms
LowZ Mode:
4 Ohms
Connect loudspeakers to the barrier strip output connectors for all channels 1
thru 8. Connections are shown in the diagram at right.
Use Ferrite beads
included with the unit.
Ch 2
Ch 1
+
-
Further audio routing can
be configured using Nx
modules via software.
Never connect a +
or -
terminal directly
to a
or -
terminal.
CKd Series Owners Manual v1e
Page
11
Ferrite Bead Installation for
Output Connections
Summary of Contents for CKd Series
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