1. Yes
2. No, not at the same time.
3. The original MX49/MX61 were compatible with iOS for MIDI, the new MX49/MX61 BK/BU are iOS class compliant -which means they will also do audio in addition to MIDI Communication.

The MX BK/BU series features class-compliant, “plug and play” USB audio/MIDI with iOS, Mac and PC. Just plug it in and your MX BK/BU synthesizer becomes your audio and MIDI interface for the rest of your music studio. Monitor all the sounds from your computer via the headphone output of the MX BK/BU or listen to your DAW tracks by connecting the MX BK/BU to external studio monitors or PA gear. The audio converters on the MX BK/BU are made for professional music applications so everything on your computer -- even games -- will sound better when using the MX BK/BU as the output. The MX BK/BU interface is bi-directional for digitally recording your MX BK/BU directly to your computer or iOS device resulting in high-quality audio.

In addition to Cubase AI, the MX BK/BU series is compatible with Cubasis LE, a DAW app for iOS.
Connect MX BK/BU to your iOS device (requires Lightning to USB Camera Adapter) and unlock USB audio and MIDI recording between MX BK/BU and Cubasis LE.

thanks, have waited a long time for this answers, did not now about this forum since today

is there any other obvious changes, as sounds etc vs the old mx?

is there any other obvious changes

the color scheme... and iOS class compliance

i probably will buy this but i am a little nervous about ios10, so i will wait to be shure it works well with ios10

I read now that there is problems with the new mx v2 and audio with windows7 and 10
that only midi works not audio with the mx v2 soundcard
I suppose the audio in and out from mx to pc should work, but is that not the case?

No problem with Windows7 or 10, that I'm aware of.

The problem is with changes Apple made to their audio protocol in iOS 10 - which affects iPads, iPhones and iPods, only.
There will be an official announcement soon.

But as happens from time to time when the platform makers change how the implementation of the MIDI or the audio protocol works, it can cause havoc for musicians and the tools we use. This is again one of those times. There have been no changes in Windows audio implementation that I am aware of, and the new MX works fine on both Windows and Macintosh computer platforms (where the Yamaha Steinberg driver is used).

It is the mobile device (iOS) platform where an audio problem exists with the new MX and new iOS 10... Which came out within days of the new MX shipping.

oops, thanks for sharing, i was just going to order the new mx, the ipad connection is more important for me as i have other soundcard for pc
so i have to wait again ;(

is there problems with the moxf and ios10 also?

I was wondering another thing also, is there anyway to change the rythmicpattern with any external software, or arpeggiators - well i dont think so but have to ask
i guess i have to use external sequenser instead

I have the MX v2 on review here at the moment from Yamaha UK and the midi works on both of my PC's, one running Windows 10 Pro and the other Windows 7 Ultimate but the audio interface does not work.

It also doesn't work in macOS Sierra which given there was plenty of notice that it was coming is a bit of a misstep on Yamaha's part.

I have spoken to Yamaha UK about the Windows problem and they have had no issues themselves so I assume its an isolated incident albeit an odd one given the problem happens on both Windows machines.

By the way, no driver is required for the MX v2 either for midi or audio. I confirmed this with Yamaha UK. A usb driver IS required for the original MX but that is because it is not class compliant.

I don't have any problems using iOS10 however and the MX plus FM Essential works fine there.

I have spoken to Yamaha UK about the Windows problem and they have had no issues themselves so I assume its an isolated incident albeit an odd one given the problem happens on both Windows machines.

The thing consistent in both your attempts is you. There is just a chance that it maybe something you are doing or not doing. Not accusing, just saying. It is you setting up both of these Windows computers - the other thing could be the cables or connectors you are using (they also are consistent in your attempts). As I mentioned no known issues with Windows.

And just because you can't get it working on first attempts doesn't mean a workdwide issue.

I don't have any problems using iOS10 however and the MX plus FM Essential works fine there.

This contrary to Yamaha's findings so again you are out of step with what we know. (We will not be calling on you to test items, I guess :)... Our finding are that the MX V2 does Not work properly with iOS 10 for audio. Works perfectly fine in iOS 9

FM Essential will unlock on an iOS 10 device but the audio will not travel from iPad through the New MX - as it is supposed to... Are you hearing audio from FM Essential through the audio outputs of the new MX? That would be news! Please let us know. I'd like to submit a report on your findings.

As to Sierra please stay current on Compatibility here

how do mx work in ios9? is the audio from ipad mixed with the audio in mx or do you have to choose?

how do mx work in ios9? is the audio from ipad mixed with the audio in mx or do you have to choose?

Works perfectly in iOS 9

is perfectly meas that the audio from the ipad mixes with the audio in mx?

i suppose thats how the old one functioned with laptop, if i remember right
i think you could change the mix settings in the utility menu or something

is perfectly meas that the audio from the ipad mixes with the audio in mx?

Yes, that's what it means. So the audio that would normally come out of the iPad speakers is routed instead to the MX audio outputs... Which you can connect to your favorite professional sound system.

i suppose thats how the old one functioned with laptop, if i remember right
i think you could change the mix settings in the utility menu or something

Not exactly. Laptops are technically computers, so they can't stop the manufacturer from writing their own driver for the product. The Laptop/Computer would use the Yamaha Steinberg USB driver that handles both MIDI and audio to and from the computer. And in the case of the MX you can use it as the MIDI and audio interface for the computer or laptop.

iOS devices are the Apple thing, all devices must comply with Apple's input/output 'driver'... So from time to time when they 'fix' it, it "breaks" how the devices work.

If you own an iOS device every twenty minutes your App Store is telling to update your App... (I'm sure you've noticed this with iOS 10!) The iOS system changes / improvements require a new update in many, many Apps. Sometimes (most times) it a good thing, sometimes it breaks things that used to fine work. C'est la vie, in the world of iOS and Apps.

On the computer side where the playing field is more flexible, typically the manufacturer's driver enables the communication. Changes are less often, and breakage is rare (or less often, anyway).