Sennheiser HD 650 Open-Back Over-Ear Headphones | 300Ω · Warm, Rich Sound · Audiophile Classic | Parallel Import · One-Year Warranty
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International Shipping
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Australia (6-12 business days depending on area or zone)
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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)
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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.
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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, Full-Bodied Sound・Audiophile Classic
Product Overview
This product is a parallel-import version, not packaged as an official Hong Kong distributor model; one-year warranty is provided by our shop.
Six Factual Selling Points
Three Practical Usage Scenarios
Scenario 1Studio reference audiophile listening, headphone amplifier pairing, and extended listening sessions
What’s Included
Original standard retail packaging; actual packaging accessories are subject to the physical product (the instruction manual language in parallel-import packaging may be English, which does not affect product functionality). If you have any questions, please contact our shop before placing an order.
Why Choose This Model?
- Classic Warm Sound: — Full-bodied and highly 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% for faithful reproduction of true 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:
Comparison is limited to models available in the store; prices are subject to the prices displayed on the page at the time of ordering.
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 (3.5 mm adapter included) |
| Weight | Approx. 260 g |
| Magnetic Field Strength | 1.8 mT |
| Product Number (SKU) | 508825 |
| Package Contents | HD 650 headphones, 3 m cable (6.35 mm plug), 6.35 mm to 3.5 mm adapter |
Frequently Asked Questions
Q: Do I need a headphone amplifier?
A: Highly recommended. With 300 Ω impedance and 103 dB sensitivity, a headphone amplifier is required to achieve the best performance.
Q: Are they open-back?
A: Yes. The open-back design provides a natural soundstage, but there will be some sound leakage.
Q: Can the cable be replaced?
A: Yes, the cable is detachable.
Q: What is the difference compared with the HD 600?
A: The two have a similar structure; the HD 650 has a warmer, richer sound, while the HD 600 is more neutral.
Q: Are they suitable for recording work?
A: Yes. They have 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.
Warranty
1-year warranty
1-year warranty. Warranty period is subject to the statutory requirements of the local country.（The warranty period is subject to the requirements of local laws.）
