Best price for Sennheiser HD 660S2 Open Over-Ear Headphones with Optimized Surround & Improved Transducer Airflow
Best verified price
21.0% below the recorded typical price of $479.95.
This is the lowest price UponSale has ever recorded for this product.
4 stores compared · 4 fresh offers · last market update 1d ago
We score a price only against history we recorded ourselves. Until then this product shows its market range instead of a number we would be inventing.
You will be taken to tmraudio.com. UponSale does not process payments and does not sell this product.
Market summary
UponSale currently tracks this product at 4 stores. The lowest verified price among 4 fresh offers is $379. That is 21.0% below its recorded median of $479.95. The next-cheapest fresh offer is $409, $30 more.
What our data shows
- This is the lowest price UponSale has recorded for this product.
- The current best offer is $30 below the next-cheapest fresh offer.
- Choosing the wrong store today can cost up to $300.95 more for the same item.
Current prices for Sennheiser HD 660S2 Open Over-Ear Headphones with Optimized Surround & Improved Transducer Airflow
4 stores tracked| Store | Match | Item price | Shipping | Total | Stock | Freshness | Action |
|---|---|---|---|---|---|---|---|
| The Music RoomBest verified tmraudio.com | New | $379 | unknown | $379 + ship | Unknown | Checked 2h ago | View offer |
| Earsunlimited earsunlimited.com | New | €409 ≈ $476.20 €599 | unknown | €409 + ship | In stock | Checked 2h ago | View offer |
| World Wide Stereo wwstereo.com | New | $479.95 $679.95 | unknown | $479.95 + ship | Unknown | Checked 2h ago | View offer |
| Audio Advisor audioadvisor.com | New | $679.95 | unknown | $679.95 + ship | Unknown | Checked 5h ago | View offer |
Ranked by the lowest comparable price among offers that pass our freshness, variant and anomaly checks. Where a store does not publish a shipping cost we say so rather than assuming it is free. All amounts are the store’s own published prices at the time shown.
Specifications
3 stated- Wearing style
- Over-ear
- Enclosure
- Open-back
- Connection
- Wired
What retailers state about Sennheiser HD 660S2 Open Over-Ear Headphones with Optimized Surround & Improved Transducer Airflow, normalised by UponSale. Confirm anything that matters on the retailer’s own page before buying.
Compare Sennheiser HD 660S2 Open Over-Ear Headphones with Optimized Surround & Improved Transducer Airflow against its neighbours
By the specifications it statesSennheiser HD 660S2 Open Over-Ear Headphones with Optimized Surround & Improved Transducer Airflow price history
Recorded by UponSaleOver the day UponSale has been recording this product, prices for Sennheiser HD 660S2 Open Over-Ear Headphones with Optimized Surround & Improved Transducer Airflow ran from $379 to $679.95. The current lowest verified price is $379 and the recorded median is $479.95.
Over the day UponSale has been recording this product, prices for Sennheiser HD 660S2 Open Over-Ear Headphones with Optimized Surround & Improved Transducer Airflow ran from $379 to $679.95. The current lowest verified price is $379 and the recorded median is $479.95.
Is Sennheiser HD 660S2 Open Over-Ear Headphones with Optimized Surround & Improved Transducer Airflow a good deal today?
Buy now or wait?
shop aroundBuy from the right store
The same product is listed at 4 stores we track today, and the cheapest is 44.3% below the dearest. Whether to buy now or wait needs price history, which we are still recording.
This is a description of what we observed, not a prediction. We do not forecast future prices.
Market price snapshot
Against the rest of the category
Headphones →Among the 555 headphones products we hold a current price for, this sits in the cheapest 12%.
Category figures are computed from the prices we currently hold across every store we track, not from a manufacturer’s list. They move as the catalogue does.
Alternatives worth comparing
Hifiman Sundara Planar Magnetic Headphones
Sennheiser HD 660S2 Headphones
Audeze LCD-5 Planar Magnetic Headphones
Sennheiser HD800S Headphones
Sennheiser HD 820 Headphones
Audeze LCD-5 Open Back Headphones
How UponSale tracks this product
Stores compared
$300.95 spreadData provenance
- Stores
- 4 tracked
- Fresh offers
- 4
- Observations
- 1 days recorded
- Last update
- 1d ago
- First tracked
- August 30, 2026
- Lowest ever seen
- $379
Every price above was read from a retailer’s own published data and stored with its timestamp. The history is ours, not a retailer’s claim.
How we calculate this
Where prices come from. We read the product data each retailer publishes on its own site, unhurriedly and within the rules that retailer sets. We never work around an access control and we never buy collected data of uncertain provenance.
What “verified” means. An offer can win best price only if it is inside our freshness window, matched to the exact variant, in stock, and free of an unresolved price anomaly. “Best verified price” means lowest among the fresh offers we track — not the lowest price on the internet.
How history works. Every price we observe is stored with its source and timestamp. Daily market low, median and high come from those observations, so the price history on this page is ours, not a retailer’s claim.
What we exclude. Stale offers, mismatched variants, bundles compared against single items, and prices that move implausibly without corroboration from another store.
Images. Product photographs come from the retailer they sit beside, loaded from their own image host. We do not re-host them and claim no rights in them.