We all seems to like the insights. So, here's another one... "Mark Levinson machined aluminum knobs are iconic—no question. But have you ever wondered what’s behind them? Premium brass units fixed to each knob react dynamically to the speed of your touch, providing complete control over your listening experience. Turn the knobs slowly to dial in the dB value by precise increments, and spin the knob fast to spike the volume up or down.

And other two photos are showing where Mark Levinson designs are inspired, tested and transformed into the premium audiophile equipment."