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What are the Jubilees?
The HD580 Jubilees were a "limited edition" run of about 4000 pairs and were manufactured for worldwide sales in 1995. They were produced by Sennheiser as a commemorative product to celebrate their 50th anniversary.
Stemming from the original and highly acclaimed HD580 Precisions, the Jubilees one upped the Precisions by having the entire body made out of thermoplastic carbon fiber to help keep structural resonance to an absolute minimum, computer tuned drivers were employed, and steel grills were used as opposed to the original's plastic grills. The Jubilees of course then gave birth to the HD600s after supply of the Jubilees were exhausted.
When looking at the Jubilees and the HD600s, the most noticeable difference is of course the carbon fiber effect overlay that was later replaced by the HD600’s blue marble finish. Other differences between the Jubilees and the HD600s include, closer matched drivers (According to Sennheiser USA) and the special 50th Anniversary box and documents. Like all models from the HD580-6X0 line, the Jubilee's drivers have a resistance of 300 ohms and require a fair amount of power to drive them properly.