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Sennheiser HD 650 Open-back Headphones | 300Ω Ω, Warm and Rich Sound, Audiophile Classic
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.
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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 Headphones | 300Ω・Warm and Rich・Audiophile Classic
Warm and rich open-back audiophile classic, studio reference-level sound
📸 Product Main Image
✨ Detailed Introduction
Sennheiser HD 650 Open-Back Headphones | 300Ω・Warm and Rich・Audiophile Classic HD 650 is a classic open-back dynamic headphone from the Sennheiser HD 600 series, known for its warm, rich, and musical sound, and has long been a reference standard in studios and audiophile circles. The 300Ω high impedance design is recommended to be paired with a headphone amplifier for optimal performance; with replaceable cables and a comfortable headband, it is suitable for long listening sessions, making it a timeless choice for audiophile systems.
🔧 Product Features
— Rich and musical, a long-term reference standard in the audiophile community.
— High impedance design performs excellently with headphone amplifiers.
— THD below 0.05%, reproducing true details.
— Features detachable cables for easy upgrades.
— Classic design, suitable for long wear.
— Sennheiser's signature craftsmanship and durability.
🏠 Usage Scenarios
🏆 Why Choose This Model?
- Classic Warm Sound:— Rich and musical, a long-term reference standard in the audiophile community.
- 300Ω Impedance:— High impedance design performs excellently with headphone amplifiers.
- Low Distortion Drivers:— THD below 0.05%, reproducing true details.
🖼️ Product Detail Image Gallery
📋 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 (includes 3.5mm adapter) |
| 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 |
⚖️ Sennheiser HD 6 Series (Audiophile Level)
| Model | Type | Connection | Positioning |
|---|---|---|---|
| HD 600 | Open-Back | Wired | Audiophile Level |
| HD 650 | Open-Back | Wired | Audiophile Level |
| HD 660S | Open-Back | Wired | Audiophile Level |
| HD 660S2 | Open-Back | Wired | Audiophile Level |
| HD 620S | Closed-Back | Wired | Audiophile Level |
Note: The above are the models available in the same series.
❓ Frequently Asked Questions FAQ
Q: Do I need a headphone amplifier?
A: Strongly recommended. 300Ω, 103dB requires a headphone amplifier for optimal performance.
Q: Is it open-back?
A: Yes, the open-back design provides a natural soundstage with some sound leakage.
Q: Can I replace the cable?
A: Yes, it features detachable cables.
Q: What is the difference from HD 600?
A: The structures are similar; HD 650 has a warmer and richer sound, while HD 600 is more neutral.
Q: Is it suitable for recording work?
A: Yes, it has long been one of the reference standards in studios.
Q: Are the ear pads replaceable?
A: Yes, original factory replacement ear pads for the HD 600 series are available.
Source: https://global.sennheiser-hearing.com/products/hd-650; specifications are subject to official announcements for updates.
