A:AnswerI assume you mean A6400, not AX6400. Either way, if it has a 3.5mm microphone input jack, then this system will work.
I have used this system quite a bit and it works very well. The wireless signal is good and the included lavalier works well and sounds pretty good. Noise is low and there are multiple gain options to get the proper levels. It's a great system for the price and is very easy to use. It has decent battery life with AA batteries, and when they get low you can quickly swap them out and get back at it.
I haven't used the The Wireless Go system, but I've looked into it quite a bit. It is much smaller and has a mic built into the transmitter. The small size is one of the big advantages of the Wireless Go system. You can add a wired lav to the transmitter, but it doesn't come with one. It has built-in rechargeable batteries, which is nice, but if they die you can't quickly swap them to keep recording. The wireless signal isn't quite as strong at that of the RodeLink system, so you may not get quite the same range, and it seem to be more easily blocked by people's bodies, for possible drop-outs when the transmitter is clipped on the back of someone's belt, for instance. From all that I've read and listened to, I'd say the audio quality of the Wireless Go system is good, but the RodeLink system is a bit better.
I would say that the RodeLink system is worth the price if it's in your budget and you can make the larger size work. But the Wireless Go system could be a good option as well. Just remember to factor in the cost of a lavalier microphone if you don't want to use the microphone built into the transmitter of the Wireless Go system.
