The Siglent and Rigol are better quality than the Hantek. I have the Siglent SDS1202X-E. It has a max input of 400Vpk. Rigol DS1202Z-E has a max input of 300Vrms. You must observe the input voltage limit of any scope. I think the Siglent control layout is more intuitive, especially if you grew up with analog scopes.
I also have a Tektronix 465B, considered the workhorse of the industry for a long time. There are lots of good Tek scopes available for $200 or less.
All mentioned scopes are way more than capable of servicing audio.
I loved my 465B. Once upon a time, my father let me carve out a little space in his home shop to set up a bench. One of the things he kept in there was a large mast and boom from a wooden sailboat which hadn't seen the ocean in 20 years. When someone came to take the boat, they dropped the mast
on my 465 trying to take it out completely destroying the cam switches which control the horizontal and vertical settings.
I tried buying a couple of replacements locally, but they all ended up needing quite a bit of maintenance. Tek has some dynamite service literature for this scope, but I realized that I really need a scope to do the service I want to do and I don't want to be spending time repairing a scope.
So, during the pandemic I bought a Siglent SDS2202X-e. I really like this scope a lot. One of the reasons I chose it was that it was under $500, and I had a coupon code which basically covered the sales tax, and the size and resolution of the display looked great.
I agree with sluckey about the easy interface. Quick learning curve. Plus, I use it at the shop I work at, and my boss (who's kind of a staunch analog scope user) bought a 1202X-E for the other techs bench when they were looking at replacements.
I mention this because that one actually had to go back for a warranty repair. Siglant USA made the process easy and painless, and took very good care of us. Correspondence with the service manager was a pleasure. He was easy to reach, quick to respond if we needed anything, and very personable.