AR-4x: 3rd Time's a charm?

These AR-4x's were the first speakers I bought, back in 1970. And they were the first I restored, when I joined CSP in 2006. John O'Hanlon walked me through it: New Zen capacitors and new L-pads. I used some "vintage" grille cloth but it wasn't right (see 1st picture). A couple of years later RoyC inspired me to do a mod: New drivers and crossovers from Avid 100s. A simple mod: They are drop-in replacements (see 2nd photo). Woofer is beefy, with a rubber surround. Tweeter is the then-ubiqui

Thanks Giorgio and Jessi I have considered stacking. Just don't seem to have the room to do that. Maybe I need to clarify regarding the cloth. The first 4x resto used "vintage" cloth that was not right. The 1st photo may look OK but the color and texture were not at all authentic. When I did the 4x/Avid mod I changed the grille to the 18 count lambswool by Weichelt. Very authentic but no longer available so when I restored the modded speakers back to AR-4x I kept the 18 count linen on