You know, if I was younger, and into the headphone scene, I'd buy one of the 'reasonably affordable' Sennheisers, like the 600 or 650. You read about them a lot. But it would be lost on me, today.
When I was growing up in audio, headphones were always viewed as an ancillary, optional thing. At the 'high end' there was Stax; everything else was pretty much whatever you thought might suit you. They all cost about the same. No one really cared. You certainly didn't have the kind of market penetration and pricing you find, today. Exotic woods were out of the question.
I remember a set of Yamaha HP 'othodynamic' headphones--those were the first really nice sounding I owned. Back then most people used large and heavy helmets like Koss Pro models. The Yamaha was light, comfortable, and easy to drive. No one had separate headphone amps, but just plugged the cord into a receiver or integrated amp.
However I did have an A/T electret phone, that was pretty nice sounding, I thought. It came with a stand alone 'energizer'. I don't remember what happened to that. Probably got lost in a move.
One of the weirder 'phones I owned was a Pioneer 'High Polymer' model. Its driver was made from a polarized film, or something. It was OK. Nothing special. But it looked cooler than anything else out there, short of a Stax.
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