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Sennheiser HD 650 Open-Back Over-Ear Headphones | 300Ω · Warm, Rich Sound · Audiophile Classic | Parallel Import · One-Year Warranty
Inventory: In stock (estimated to ship within one business day)
Delivery and shipping fees (Free shipping on orders over HK$500)
International Shipping
Free-shipping thresholds · Power Bank surcharge
Hong KongFREE
SF Locker: Free for all orders · Door-to-door: Free over HK$500
Macau
Free shipping on orders HK$800+ (2-3 business days)
Australia (6-12 business days depending on area or zone)
Free over AU$100 · Flat AU$9.99 below
United Kingdom 0-3kg (3 - 5 business days); 3kg+ (5 - 8 business days)
Free over £40 · Flat £6.99 below
Singapore (5 - 8 business days)
Free over S$40 · Flat S$9.99 below
European Union (6 - 10 business days)
Free over €49 · Flat €9.99 below
Malaysia (6 - 10 business days)
Free over RM40 · Flat RM9.99 below
🇦🇺Australia — Power Bank
| Weight | Fee |
|---|---|
| 0 – 0.51 kg | AU$ 24.39 |
| 0.51 – 1.01 kg | AU$ 36.99 |
| 1.01 – 1.51 kg | AU$ 55.99 |
🇬🇧United Kingdom — Power Bank
| Weight | Fee |
|---|---|
| 0 – 0.51 kg | £ 9.99 |
| 0.51 – 1.1 kg | £ 15.99 |
| 1.1 – 1.51 kg | £ 22.99 |
🇸🇬🇲🇾SG / Malaysia — Power Bank
| Weight | Fee |
|---|---|
| 0 – 0.51 kg | SGD 18.99 |
| 0.51 – 1.01 kg | SGD 23.99 |
| 1.01 – 1.51 kg | SGD 27.99 |
🇮🇪Ireland — Power Bank
| Weight | Fee |
|---|---|
| 0 – 0.51 kg | € 26 |
| 0.51 – 1 kg | € 39 |
| 1 – 1.51 kg | € 51.99 |
🇨🇦Canada — Power Bank
| Weight | Fee |
|---|---|
| 0 – 0.51 kg | CA$ 37.05 |
| 0.51 – 1.01 kg | CA$ 58.33 |
| 1.01 – 1.51 kg | CA$ 82.41 |
⚡ Express Shipping — free option available, refer to checkout.
📦 Heavy / Oversized items (e.g. water dispenser) — contact customer service for a custom freight quote.
Warranty
Maintenance Terms and Conditions / Warranty Information
DIGIBAL Official Warranty Coverage
This product is Authentic Hong Kong goods, enjoy Original factory one-year warranty (Unless otherwise specified on the product page). Customers must keep this information safe. Purchase receipts and products Hong Kong distributor of skin care stickers (It is recommended to take photos for record-keeping). If the product malfunctions during the warranty period, the customer must...Contact the Hong Kong general agent directly. Arrange for testing and repair.
🌏 Overseas (US / CA / UK / SG / AU)
All products are Hong Kong official versions supplied with a UK-style 3-pin plug. Travel adapters are not included. Warranty coverage ranges from 1 to 2 years, with all servicing performed in Hong Kong. Local return warehouses available in Australia, UK and USA.
Contact CSProvide photos/videos
Submit photos/videos
Local ReturnShipping costs are paid by the customer first.
Customer pays upfront
Ship to HK Maintenance arranged by the company
Warranty processed
Reimbursement Full refund upon presentation of receipt
Full refund of postage
Overseas customers may choose between the following two options:
For other countries, please contact customer service for a return address.
Sennheiser HD 650 Open-Back Over-Ear Headphones｜300Ω・Warm, Rich Sound・Audiophile Classic
Product Overview
This product is a parallel-import version, not Hong Kong authorized-dealer packaging; one-year warranty is provided by our store.
Six Key Selling Points
Three Practical Usage Scenarios
Scenario 1Studio reference, audiophile listening, headphone amplifier pairing, and extended listening
In the Box
Original standard retail box; actual packaging accessories are subject to the physical product (the instruction manual language for parallel-import packaging may be English, which does not affect product functionality). If you have any questions, please contact our store before placing your order.
Why choose this model?
- Classic warm sound: — Rich and musical, a long-standing reference standard in the audiophile community.
- 300Ω impedance: — The high-impedance design performs exceptionally well when paired with a headphone amplifier.
- Low-distortion drivers: — THD below 0.05%, reproducing realistic detail.
Comparison of Models in the Same Series
| Model | Type | Connection | Positioning |
|---|---|---|---|
| HD 600 | Open-back | Wired | Audiophile-grade |
| HD 650 | Open-back | Wired | Audiophile-grade |
| HD 660S | Open-back | Wired | Audiophile-grade |
| HD 660S2 | Open-back | Wired | Audiophile-grade |
| HD 620S | Closed-back | Wired | Audiophile-grade |
Learn more about models in the same series:
Comparisons are limited to models available in-store; prices are based on the price displayed on the page at the time of order.
Official Full Specifications
| Headphone Type | Open-back, over-ear (circumaural) |
| Driver Type | Dynamic, open-back |
| Frequency Response | 10 Hz – 41,000 Hz |
| Impedance | 300 Ω |
| Sensitivity (SPL) | 103 dB (1 V) |
| Total Harmonic Distortion (THD) | < 0.05 % (1 kHz / 1 V) |
| Cable Length | 3 m |
| Connector | 6.35 mm stereo plug (3.5mm adapter included) |
| Weight | Approx. 260 g |
| Magnetic Field Strength | 1.8 mT |
| Product Number (SKU) | 508825 |
| Package Contents | HD 650 headphones, 3m cable (6.35mm plug), 6.35mm to 3.5mm adapter |
Frequently Asked Questions
Q: Do I need a headphone amplifier?
A: Strongly recommended. With 300Ω impedance and 103dB sensitivity, a headphone amplifier is required to achieve the best performance.
Q: Is it open-back?
A: Yes. The open-back design delivers a natural soundstage, with some sound leakage.
Q: Can the cable be replaced?
A: Yes, it uses a detachable cable.
Q: What is the difference between it and the HD 600?
A: The two have a similar design; the HD 650 has a warmer, fuller sound, while the HD 600 is more neutral.
Q: Is it suitable for recording work?
A: Yes. It has long been one of the reference standards in recording studios.
Q: Can the ear pads be replaced?
A: Yes. The manufacturer offers replacement ear pads for the HD 600 series.
