Players who will be plugging directly into a 'normal' guitar amp will
find that they get great sound quality from the TC in passive form. No
preamp should be required in this situation.
Players who must plug directly into a mixing board will most likely
need to preamp their signal in order to match up with what most mixers
require in terms of impedance and signal strength.
If you wish to have the electronics and battery on board the
instrument then you should be purchasing the 'A' or Active models of
the TC.
Should you require the preamp but don't want to put
it and a battery inside your tricone then you should purchase
the TC
in passive format and add one of our outboard
Preamp/DI units to your pickup system.
If you
already own an outboard guitar preamp, the TC pickups in
passive format should work properly with just about anything you
might have.