Sound through NON-Acoustically Transparent Screen

[PaniqL]

Hello,

I was looking at some Pull Down Screens to pull over my TV,
due to my space limitations i have speakers mounted on the wall next to the TV and do not have space for floor standing speakers.

I have noticed that AT Pull down screens are rare/expensive and I do not feel the need to spend alot of money on a temporary setup.

I wanted to know how sound sounds though a non acoustically transparent screen, i am not a audio enthusiast so i do not care about that fact that i will not get the best possible audio but obviously i do not want sound that is muffled of distorted so it sounds horrible.

Is there a noticeable diference in audio quality?
Or does it just sound horrible?

Many Thanks
- Panic