I thought I knew the answer to this question but recently I read somewhere that mixing a sealed sub with a ported sub in a listening area may not be such a mortal sin after all.
My situation is pretty simple. After conducting the sub crawl I found three good sub placement locations. I'm getting ready to order new subs very soon and had planned on going with dual PSA XV15s. The XV15 will fit fine in one of the locations but it will be a challenge to fit the XV15 in either of the other two locations, it can be done but it will extend well out into an area we walk through. On the other hand a XS15 would fit much better in either of those locations due to the smaller size.
Both PSA and SVS suggested ported subs due to the size of my room so I had originally planned to get two XV15s but now I'm wondering if mixing a XV15 and a XS15 would be okay? Or would that be a bad idea? Also could you please explain why, I'm interested in learning as much as possible.
Any help with this is greatly appreciated.