I've heard that you can stack biquads on top of each other to get the same (or similar) effect as higher order filters.
For instance a biquads is order 2, so putting something through 3 biquads is like an order 6 filter.
I've heard that doing this is more numerically stable than an actual order 6 filter.
I was wondering though, besides increased numerical robustness, are there any differences between doing this compared to just using a higher order filter?
Does it impact processing speed or frequency response or anything else?
For some context, this for audio synthesis for electronic music, on a modern desktop computer, using 32 bit floating point math.