In the Psr-S970 and S975 we are able to install ONLY 6 or 7 extra Audio Styles using the Expansion Manager due to memory limitation. Now, with the SX-900 memory capacity, I wonder how many Audio Styles we are going to be able to have on its user memory. Can Anybody guess??
The SX900 and Genos work in the same way as Audio Style packages. It has 2 GB of Audio Style (This information is not published by Yamaha, but I found it through the SX900's Info.n27 file.
You can see in the picture below. In YEM when I selected 8 pack Audio Style, 1Gb memory for sample is still intact.
When I switch to Pack Install, we can see 8 pack Audio Style, It took 619MB of the total capacity of 4096MB.
This means that you can install up to 128 Audio Style packages, each with up to 128 Style Audio per pack.