Sennheiser HD 820
The HD 820 is the closed-back answer to the HD 800S — and the answer took Sennheiser a long time to get right, because the problem is genuinely hard. Closing the back of a reference headphone traps rear wave energy from the driver, and that energy reflects back and colors everything. Sennheiser's solution is a concave Gorilla Glass reflector mounted directly behind the 56mm ring radiator driver that redirects rear waves into an absorber before they can resonate. The result is the HD 800S soundstage — wide, precise, dimensional — with the door shut.
New units, display stock. The box exists. The headphones have been out of it. The buyer is the listener who has wanted the HD 800S since it launched and can't run open-backs — open office, studio work, a partner asleep across the hall. At full retail the HD 820 is a $2,200 headphone. At $1,449 it's the closed-back reference that actually makes sense to buy.
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Return Policy
Return Policy
We offer a 3-day return window on all purchases. Returns made to a credit or debit card will incur a 5 percent processing fee. Shipping costs, both to and from, are the responsibility of the customer if applicable.
After the 3-day window and up to 3 weeks from the date of purchase, items may still be returned, subject to a 20 percent restocking fee.
For shipped orders, customers must notify us within 3 days of receiving the item to initiate a return. Once the item is received back in the same condition it was sent, we will issue a refund minus all shipping charges and a 5 percent credit card processing fee.
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The HD 820 is the closed-back answer to the HD 800S — and the answer took Sennheiser a long time to get right, because the problem is genuinely hard. Closing the back of a reference headphone traps rear wave energy from the driver, and that energy reflects back and colors everything. Sennheiser's solution is a concave Gorilla Glass reflector mounted directly behind the 56mm ring radiator driver that redirects rear waves into an absorber before they can resonate. The result is the HD 800S soundstage — wide, precise, dimensional — with the door shut.
New units, display stock. The box exists. The headphones have been out of it. The buyer is the listener who has wanted the HD 800S since it launched and can't run open-backs — open office, studio work, a partner asleep across the hall. At full retail the HD 820 is a $2,200 headphone. At $1,449 it's the closed-back reference that actually makes sense to buy.
10/10 - New Display Stock