
Page 2/2CAD20T_datasheet_AE_en_vn1.0_web
Disclaimer: We reserve the right of changes and errors.
125 250 500 1k 2k 4k 8k
70
75
80
85
90
95
100
Effective Frequency Range CAD20/T 110Hz - 18,000Hz
Speech octave band sensitivity
sensitivity (1W, 1m) dB
Frequency Hz
Average SPL 91dB
4W
2W
1W
0.5W
4W
2W
1W
0.5W
APC4T/ENC
*with capacitor
Circuit Diagram
Circuit Diagram
0359
17
INSTALLATION GUIDE
CAD20/T
With Transformer:
100V/70V line
White wire plus tapping Black
100V 20W 10W 5W 2.5W COM
70V 10W 5W 2.5W 1.25W COM
IMP.(Ω) 500K 1K 2K 4K
20W RED
1 0 W BLUE
5 W ORANGE
2 .5 W YELLOW
100 V COMMON BLACK
1) Drill the mounting
location holes for the unit in
line with the“U”bracket (2
holes 30 millimetres apart)
in the surface where the
loudspeaker is to be located.
2) Remove back lid of the unit if you have not requested our factory to
t the cable for you and connect input cable to the ceramic terminal
block through the cable gland provided.
Important Note
Please ensure that the input cable is connected to the selected
terminal inside the loudspeaker chamber and to no other connection,
as the unused transformer tappings must always be isolated from one
another.
Example: CAD20/T use the Black wire (common) and the red wire for
20 watt tapping.
Use the Black wire (common) and the Blue for 10 watt, etc.
3) Secure the cable gland tightly,
ensuring that all the rubber
washers are in place for the
xing screws.You will observe
that around the inner section of
the chamber where the back lid
was removed is a large rubber
washer, please make sure that
this is in-place when replacing
the back lid.
4) Before connecting 100 volt
line to the unit, it is advisable
to check the impedance of the
circuit.
30 30
145
25
ø138
0
45
ø135
174
185
26
3 x ø7mm
ø 116
Front view
(unit: mm)
Side view
(unit: mm)
ATEÏS Europe B.V.
Celsiusstraat 1, 2652 XN Lansingerland, Netherlands