www.cleveracoustics.co.uk
MA 135 Mixer Amplifier
User Manual
7
Output connections:
The amplifier may be used to drive either low impedance (4/8/16Ω) loads or 100V line constant voltage
loads, only one output may be used, the amplifier is not designed to drive multiple loads simultaneously.
Low impedance:
The amplifier has been designed to drive into loads between 4Ω and 16Ω. The appropriate output
terminal should be selected to match the impedance of the speakers to be connected. When installing
low impedance speaker systems, the cable lengths should be kept to a minimum to help prevent
voltage drop within the cable.
DO NOT
connect a speaker load to the amplifiers output terminals of lower
impedance than is marked on the output terminals.
100V Line:
For longer cable runs, the amplifier may be used to drive 100V loudspeaker systems reducing losses
within the cable. Connect the 100V line level loudspeakers using a parallel wiring configuration taking
care to ensure the load connected to the amplifier is within 85% of the amplifiers rated wattage to
leave appropriate headroom. Care should be taken to check the wiring and load for short circuits before
connecting the cable to the COM and 100V terminals on the rear panel.
Operating instructions
COM 4Ω 8Ω 16Ω 100V
100V
100V
100V
100V
+
-
+
-
COM 4Ω 8Ω 16Ω 100V
Total impedance: 4Ω
+
-
COM 4Ω 8Ω 16Ω 100V
Total impedance: 8Ω
+
-
+
-
COM 4Ω 8Ω 16Ω 100V
Total impedance: 16Ω
8Ω
8Ω
8Ω
8Ω
8Ω
