The NXTa (active) 4 - string violin is crafted to exacting standards in the Czech Republic and embodies physical elegance, advanced ergonomics, tremendous ease of play, and full-bodied tone. In any performance setting, the dual mode signal output electronics of the NXTa takes the convenience, versatility and capability of the NXT series to another level. <br /> <br />Using the supplied charger, you can plug the NXT into any AC outlet for 60 seconds to power the capacitor-powered active circuit for up to 16 hours of performance time. The instrument can then be plugged straight into any low or high impedance device (no direct box necessary). <br /> <br />Since there is no signal loss over the full frequency spectrum of the instrument, the fundamentals of every note remain clear and strong, even with extra-long cables. The NXTa can also be played in its passive mode when using a direct box or an amplifier with high impedance input. <br />