We wanted to clear up any confusion there might be about the new reward tiers.
We considered two options: one was to allow backers to "over-pledge" - for example, if you already made a pledge for an Amico, then you would add the price of the Musica system that you wanted on to your pledge, and we would make note that you had done so. The biggest issue with this solution is that it would be confusing for all involved - shipping costs and other fees differ depending on where in the world you are, making it potentially unclear for backers to figure out how much they would need to add to their pledge. We would also be worried about keeping track of backers unofficially instead of using Kickstarter's interface. And, because we have already created the tiers and there are backers for them, we cannot remove them.
So, don't worry about any of that. The reward tier you pledge for is the tier you receive. If you already pledged for an Amico and want to get a Musica combo tier, then the way to do so is to adjust your current pledge and choose the new tier you want.
The above link explains how to adjust your pledge and change reward tiers. If for some reason that method does not work, then you are also able to cancel your pledge and you can re-do the process. We know this isn't the most streamlined solution, but we think it's the easiest way to handle these new tiers and keep things clear for backers and for us.
If you still have questions, feel free to send us a message or an email at email@example.com.
Thanks for all your support,
The Como Audio team.