Any difference between the A9b and the A9?

[Juzen]

Can the A9 use an audio splitter like the A9b?

Thanks.

[Bob]

A9b is just an internally improved A9, several internal design improvements that male it more reliable and about 15% more electrically efficient (resulting in longer battery life). The A9b works just like an A9 (including being able to use coil splitters), only it is better.