Quote from elnero:
"So now if we want a fully balanced DAC/Amp that works better with IEM's we have to sell the M8 to get the new Mini-M8. As a primarily IEM M8 owner who bought the M8 with the understanding that it itself did this and would work well with IEM's without the need for special mods I'm feeling more than a bit disenchanted. Will there at least be special pricing for previous M8 owners?"
Yeah, this is a tough one... I can only say that I never sold my iPhone 3 and simply bought iPhone 5, skipping a generation. The old 3 is collecting dust and serving as memorabilia. I accepted that technology moved on and never looked back. My new phone is better.
Mini-M8 in some respects is better than HiFi-M8 and in some respects is not. It's better in the number of inputs (4 vs. 2). It's better in terms of battery life (11 hrs vs 6.5 hrs). It's better because it has true balanced output amplifier that drives the + and - lines differentially, giving you more power. It's better because it's 30% thinner than HiFi-M8 and weighs less.
But -- it's not better in terms if output power (300 mW vs. 1.5 W). That's the main difference, which actually allowed us to bring you all the other benefits (smaller size, longer battery life, etc). That raw power in HiFi-M8 is expensive in terms of real estate and once you make the decision to lower it, a lot of options open up.
We feel that HiFi-M8 is very good and will be hard to unseat as the leader in terms of output power and sound quality. It will remain an awesome choice for large cans. Rather than trying to beat it with the next generation product, we decided to go after its drawbacks, which are size and weight.
We knew that many people don't use large cans and rather prefer IEMs. In the past, we tried to accommodate them with mods, etc., but frankly we were working at cross purposes with the HiFi-M8, as it was trying hard to be all things to all people. That's the drawback of crowd-sourcing. You try to please everyone and someone invariably ends up being unhappy.
Rule of thumb:
If you have large cans, you probably don't need to sell your HiFi-M8. It will serve you well for years to come.
If you want a smaller, lighter device that adds two more inputs and DSD, consider Mini-M8. Know however, that it will not drive all cans, so that's a limitation.
Regarding 24/96 compatibility with Apple, we worked hard for over two years and so far have been unable to extract that from iDevices. We did some research and noticed that no other manufacturer managed to do so either. At this point, I would not hold my breath. If something changes with apple, we will definitely let you know. Please note that 24/192 is still and always was available over the USB input. All you need is a CCK. You will lose the ability to charge the phone via the USB jack, and some portability, other than that, 24/192 is available if you need it.