CXL-80T Installation Instructions v1.0
3
Pri.
Sec.
From amplifier
output (Lo-Z)
To 70/100 V-line
speaker system
100 V
70 V
COM
Red
Black
White
Purple
Blue
CXL-80T
-
(0V)
+
Each transformer is also supplied with an M4 x 45 Posi-head bolt.
To convert one channel of a 46-80 to 70/100 V-line operation, proceed as follows:
1. Disconnect the 46-80 from the mains.
2. Remove the top cover (8 screws) and orient the unit with the rear panel towards you.
3. Mount the CXL-80T transformer on the right-hand side of the 46-80 chassis, using one of the holes in the side of the chassis
and the M4 bolt supplied with the transformer. The centre of the toroid has a captive M4 nut, so the bolt head should be on
the outside of the chassis. If fitting fewer than four CXL-80Ts, any of the fixing positions may be used. Orient the transformers
so that the flying leads face the rear of the chassis.
4. For the zone being converted to 70/100 V-line operation, unplug both ends of the relevant blue/white twisted pair which
connects the power amplifier modules to the 3-pin headers on the PCB immediately behind the SPEAKER OUTPUT
connector.There are four of these (one per zone): CON30 (Zone 1), CON31 (Zone 2), CON32 (Zone 3) and CON33 (Zone 4) -
see diagram on the following page.
