Rear Panel - Inter-m OT-4240 Operation Manual

OUTPUT TRANSFORMER UNIT

Rear Panel

Rear Panel
1. AMP INPUT TERMINALS
These terminals are connected to the output of a low-impedance amplifier like the Inter-M OT-4240
(4Ω/60W), OT-4480 (4Ω/120W) or OT-4960 (4Ω/240W).
2. SPEAKER OUTPUT TERMINALS
These output terminals may be connected with high-impedance distributed speaker systems.
For 120VAC operation, the 70V output terminal is recommended. For 230VAC operation, the 100V or 70V
terminals may be used.
The chart below shows recommended impedances.
OT-4240 / 120VAC
OT-4240 / 230VAC
OT-4480 / 120VAC
OT-4480 / 230VAC
OT-4960 / 120VAC
OT-4960 / 230VAC
4
OT-4240/4480/4960
100V
166.7Ω
83.3Ω
41.6Ω
70V
81.7Ω 10.4Ω
81.7Ω
40.8Ω
40.8Ω
20.4Ω
20.4Ω
25V
5.2Ω