CS5

That’s a hell of an upgrade straight from tv speakers. There’s nothing wrong with the triangles, they’re just doing what they were made to do. You’re just not used to hearing it. There’s a couple things you can do; Keep listening to them until your ears become used to the sound, Exchange them for so

its Sony SS-CS5 passive speaker (i think the product is no longer available), great for budget audiophile the mid-high sound impresive enough but lack bass so i hook up a subwoofer under my table Edifier T5s

I’d start with speakers. Those Sonys look like a hot mess. Three way bookshelves? Jeez. Here’s some testing to verify that they are treble forward, shall we say: https://www.audiosciencereview.com/forum/index.php?threads/sony-ss-cs5-3-way-speaker-review.13562/