General
Line 6's XD-V75 TBP12 is a very interesting product if you like all the freedom of wireless live stage performances. It is quite possible you're not the only performer on stage and that you need a separate channel as not to interfere with those of your stage colleagues. Luckily, Line 6's XD-V75 TBP12 transmitter allows you to choose from 14 channels, more than enough for even bigger bands and ensembles.
Digital
This transmitter digitises your sound and sends it to the receiver, which turns it back into an audio signal. Why this conversion, you wonder? The answer is simple: an analogue system can be thoroughly messed up by interference, whereas a digital signal is binary - it has just two set values: 0 and 1. Even if the digital signal is tampered with, there's never enough interference to convert a 0 to a 1 or the other way around. Whatever you send to your transmitter will get there unscathed - the sound is absolutely clean.
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