Bought my Musical Fidelity MC-4s in 1987, so they're 28 years old. These are Martin Colloms designed two-ways with a see-through TPX 8" bass/mid and Elac metal dome tweeter. I enjoy rotating them through my secondary system where I additionally have Spendor SP-1s (also mid-'80s), Revel Performa M20s and Usher BE-718s. Shockingly, of the listed speakers the MC-4s "disappear" best.