2x400Ohm earspeak.600 Ohm cond. mic.

2x400 Ohm earspeakers, 600 Ohm condenser mic.

2x40Ohm earspeak. 2,2k Ohm dyn. mic.

2x40 Ohm earspeakers, 200 Ohm dynamic mic.

2x40Ohm earspeak. 2,2k Ohm elect. mic.

2x40 Ohm earspeakers, 2.2k Ohm electret mic.

2x400Ohm earspeak. 200 Ohm dyn.. mic.

2x400 Ohm earspeakers, 200 Ohm dynamic mic.

2x400Ohm earspeak. 200 Ohm dyn. mic.

2x400 Ohm earspeakers, 200 Ohm dynamic mic.

2x40 ohm earspeakers no mic.

2x400 ohm earspeak, 200 ohm dyn. mic.

2x400 Ohm earspeakers, 200 Ohm dynamic mic