Rane TF 4 Transformer (Discontinued)

For 25 volt audio distribution systems, the TF 4 can be used by connecting the 25V loads between its 70V and 100V taps (green and yellow wires). Thermal resistance of the TF 4 is only 1C/W.

Other creative combinations are possible. For example, the yellow/green pair can drive 8Ω loads near to the amplifier, with the red/yellow pair being simultaneously used for a 70 V system. Depending on loading of the 70 V system, this arrangement presents an impedance between 4 and 8Ω to the amplifier.

The TF 4 Transformers can be used at power ratings much higher than 100 W, provided that the low-cut frequency is moved up accordingly. Since voltage capability doubles with each octave, power capability quadruples each octave.

• Fully isolated, high performance toroid transformer
• 100 W 25/70/100 V Transformer
• Provides flat frequency response within 1 dB from 40 Hz to 20 kHz
• Insulation materials compatible with surface operating tempertaures > 60°C
• All materials flammability rated UL94V0

Data Sheet