Not so sure about that claim. In the 70s everything was analogue. Bluetooth can barely do mp3 quality let alone CD which is still far from full analogue tape. Many headphone from back them line Sennheiser HD 414, Koss Pro/4AA, and Stax SR-X blow away anything some makes now
Unfortunately they don’t sound near as good. Maybe in the future they will.
Compared to a lot of headphones available in the 1970’s they sound amazing.
Not so sure about that claim. In the 70s everything was analogue. Bluetooth can barely do mp3 quality let alone CD which is still far from full analogue tape. Many headphone from back them line Sennheiser HD 414, Koss Pro/4AA, and Stax SR-X blow away anything some makes now