We check out Sennheiser's flagship open-backed headphones, compensated to make them sound more like speakers.
Sennheiser HD 600 Headphone HD600
Sennheiser HD 600 Headphones –
Sennheiser HD600 Review
After searching for months I finally found a marble HD600 at a
Sennheiser Consumer Audio HD 600 - Audiophile Hi-Res
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Sennheiser HD600 Headphones
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hd600 Earmass
The HD 600 is STILL one of the best headphones.