Posted 28 November 2009 - 09:34 PM
From what I see, the real only difference is the FX3 holds more sounds, twice as many batteries and has amplifiers for the speakers.Yes the FX3 does hold 8 batteries vs. 4 with the XR6. Those batteries are needed to drive not only a bigger amp but also 2 amps when you are using both speakers. Is there a big difference in volume between the two?Personally I would say that there is. Because of the bigger amp on the Horn speaker, it is able to be what I would consider about 20-25% louder than the XR6. That's not a technical answer, just my opinion in hearing them both. We call in open rolling hills and need all the volume we can get but what about just adding an extra external speaker to my XR6?You can add an external speaker to your XR6, but you would have to be careful in which speaker you choose. The smaller amp in the XR6 wouldn't help drive a large speaker as effectively depending on the amount of watts the external speaker was rated for.If you have any other questions please feel free to ask and hopefully I can help guide you in the right direction. If you decide to go with the FX3, feel free to check back in with me, as we can get you set up with any production unit with a great price.