User Manual
2
1 = -1
2 = +1
3 = -2
4 = +2
5 = -3
6 = +3
7 = -4
8 = +4
Speakon-4P
XLR/F-3P
RCA/(Phono)DIN 3P/5P/7P/8P TRS-JackXLR/F-5P
Speakon-4P
XLR/M-3P
RCA/(Phono)DIN 3P/5P/7P/8P TRS-JackXLR/M-5P
Speakon-8P
Speakon-8P
USB Type B USB Type A
1 32 4 5 76 8
Battery
Check
Ground
RJ45
• Illuminated LED pair indicates continuity of 
corresponding pins
• Illuminated Ground LED indicates short circuit 
(connection between pin and shell)
• Battery Check: bright LED indicates charged battery
• Manual leads: continuity indicated by tone and LED
Jack
1 = sleeve
2 = tip
3 = ring
RCA (Phono)
1 = screen
2 = hot
CBT-12
Speakon
Cable Tester
Precautions
•  Please read and follow these instructions, 
and keep this manual in a safe place.
•  Make sure that this product is intact and that 
there are no missing parts.
•  Keep this unit away from water and any 
ammable gases or liquids.
•  Remove the battery during long periods of 
non-use.
•  Do not attempt to disassemble or repair the 
equipment—doing so will void the warranty, 
and Kopul will not be responsible for any 
damage.
•  Clean the unit with a soft dry cloth.
•  Use only parts provided by the manufacturer.
•  All photos are for illustrative purposes only.
Overview 
Selection knob
Ground
LED
Battery Check LED
Banana plug
jacks
Battery compartment
Pin indicator and 
continuity LEDs
Cable testing jacks








