Turbosound

I've had an ip2000 v2 for a while and just picked up another one second hand but I didn't realize it was the first version. I'm having trouble connecting the two via Bluetooth. Does anyone know if v1 and v2 should be compatible and maybe it's just user error on my part? 

I purchased the speaker about 1 yr ago. About 2 months ago I notices when plugged in to the XLR the sound would slightly fade out for for about half a second about every 10-15 min. It never did that with bluetooth.  Note im not a proffessional so i may use it for a few hours on the weekend, never turning the volume higher than 60%. As of about 2 weeks ago ,at about 10% as soon as the first bass hit the sound goes in and out even with bluetooth. The speak is not blown it seems like a connection issue withthe sub and the tower. Note: I have the latest firmware  V1.2.2 

Acquired 2 Turbosound iQ15 speakers for sound events. At the very first event, people complained that high frequencies are very hard to hear, and there is practically no low frequencies. How can this problem be corrected?

Everytime we hook up and power up our subs I go into the presets and load the preset I saved that has the crossover   Menu set as user, 100.25 hz. The subs don't seem very loud but if I go into crossover menu and reselect the user setting and push the encoder to select it the subs get noticably louder. Any answers as to why?

I've always set the eq settings on my iQ tops and subs to "None" because I think it would be flat giving me more precise control from my X32 mixer. Having said that, what exactly does the "Live" setting do?  What frequencies does it boost/cut?  Should I consider it for indoor/live performances?

I'm not near my PA otherwise I would try A/B the settings so I was hoping to get some real-world feedback.