Reactive dummy load for a small power tube amp.
Contrary to a pure resistive dummy load (high power resistor) this one follows the non linear impedance curve of a real speaker, including the resonance peak and the slow impedance rise in the mid/high range.
- Maximum dissipation power 5W,
- Nominal impedance 8 Ohm,
- 3 position Resonance switch, allows to set the resonance peak height,
- 5 position rotary Presence switch, allows to set one of five, different impedance rise curves.
Here is an interesting experiment showing what direct impact on the sound has the speaker's impedance curve (simulated by this device):