There is no cloth that is acoustically transparent. Use your brain. ANYTHING that is placed in front of a transducer, WILL(in one way/degree or another)have an effect on the sound radiated. Some speaker systems are tuned for their grille cloths, but that is rare. That's why most systems sound better, with the grilles removed.
Speaker grill material, any real difference?
I need to replace the speaker grill material on a pair of Infinity Renaissance 90 speakers. After looking online there really is not much out there. It all seems to be the basic $15 a yard stuff. Is this what all the mfg's use? Or is there an "audiophile grade" material. I would hate to think I am spending only $30 when I could fork out the big bucks.