by james » Mon Mar 08, 2010 5:31 pm
Sorry to hear you are having problems.
Firstly, to address the tuning issues. You should be able to get close to the Peterson tuner. The Peterson tuner is certainly better than the B2M built-in tuner, but using the built-in tuner you should still get you close to the Peterson tuner -- closer than you can get with most other tuners. The tuning LED works as a strobe, so it stops pulsing when you are in tune. This means the LED could be on, or off, or somewhere in between. You do not want to try and get the LED fully-on. It's not the intensity you need to watch, but the speed of the intensity changing (the pulsing). And, yes, we are using 440Hz as the tuning reference.
The other thing that can complicate tuning is that the B2M may track a strong harmonic and tune to that, whereas the Peterson tuner will always follow the fundamental. On heavy bass strings the fundamental and harmonics won't be in tune with each other, so you will get some difference. The advantage of using the B2M tuner is that you know the MIDI notes will be correctly in tune.
Onto your stability issues... If you are using an MBox you don't need to use ASIO4All. I have an MBox (first generation with no MIDI) that I use on a laptop for demos and the ASIO drivers on it work very well and give really low latency. I suggest if you are only using ASIO4All for the MBox, to remove it and use the MBox ASIO drivers -- it will work much better. I've not used the new MBox with MIDI, so not sure how the ASIO drivers work with that.
What happens when you play single sustained notes? You should be able to play a note on 1 string and the B2M should track that for a long time and be very stable. If that works, try pitch bending a sustained note to see if it follows the bends. If you can do this well, the B2M unit should be working correctly.
Of course, it is possible you have a defective unit, but hopefully it's just a setup issue we can help you resolve.