https://www.youtube.com/watch?v=ItltiQcVUlk
Mas ingles, pero como apenas hay informacion...:
The Z Cable has an active interface with a special designed cable that is part of the circuit (balanced and noise cancelling) and replicates the output properties of a passive pickup coil which is so much more than just the output impedance. In fact the interface has a pickup coil in it. It receives your signal, buffered, true bypass, whatever, and re-introduces these coil properties into the signal path using some technology that we designed from scratch. You can control the reactance of this coil which changes the top end dynamics and you can change the virtual cable length. The capacitance in a cable has an amazing interaction with a passive PU coil and effects so much more than how bright or dark your tone is. If you've auditioned a bunch of different cables you'll know they have a massive impact on your sound. So the Z cable gives you the ability to fine tune this to suit your particular rig.
Also because the design of the unit the actual cable that is integrated into this circuit can be any length. We sell 4, 8, and 12 metre lengths but tested it with a 40 meter cable and it worked exactly the same.
Now, what's the point you ask?
I have tried to explain this as best I can at the website but perhaps I need to do better.
The point is the output impedance from a guitar pickup is dynamic. It's not set, it changes according to how you play, how the field of the coil is interrupted. That dynamic connection is altered when you have the signal locked down by a standard buffer. Even with the Dragster, that dynamic relationship doesn’t come back, you can simply have control over the impedance. The major difference with the Z Cable is that the dynamic impedance relationship is re-established at the end of the chain. It is still a low impedance signal, but that impedance is dynamic and is dependant on the signal that goes through the coil. One of our customers put it best when he said ‘it puts the dance back in’.