- Product
- Sennheiser HD 660 S2 Open Back Wired Over-Ear Headphones
- Brand
- Sennheiser
- Category
- Headphones
- Country
- Australia
- Lowest price (AUD)
- 613.00
- Retailer
- Kogan.com
- Price checked
- 15 Nov 2025

Sennheiser HD 660 S2 Open Back Wired Over-Ear Headphones
by Sennheiser
Best Price
at Kogan.com · checked 15 Nov 2025
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eBay
eBay
Harvey Norman
$948.00
Harvey Norman
$948.00

Kogan.com
$613.00
$950.00

Kogan.com
Best Price$613.00
$950.00

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$660.00
$950.00

Sennheiser
$660.00
$950.00

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$950.00

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Mannys
$869.00
$950.00

Mannys
$869.00
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Store DJ
$869.00
$950.00

Store DJ
$869.00
$950.00

Premium Sound
$949.95

Premium Sound
$949.95

Minidisc
$949.95

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$949.95

Audio Influence
$949.95

Audio Influence
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Addicted To Audio
$950.00

Addicted To Audio
$950.00
| Specification | Value |
|---|---|
| Headphone Cup Type | Over-ear |
| Body Part Use | Head |
| Noise Cancellation Type | No noise cancelling, Aren't designed to block out background noise, Can't isolate the noises in your workspace |
| Connectivity Technology | Wired |
| Compatible Devices | DAPs, Modern solutions, Vintage classics |
| Ports and Interfaces | 6.3 mm jack plug |
| Cable Length | 1.8 m |
| Connectivity Highlights | Detachable Cable |
| Earpad Material | Velour |
| Driver Size | 38 mm |
| Frequency Response | 8 Hz-41.5 kHz |
| Headphone Impedance | 300 ohms |
| Sensitivity | 104 dB (1 kHz, 1 Vrms) |
| Sound Output | Stereo |
| Audio Highlights | Extended sub bass |
| Total Harmonic Distortion | <0.04% (1 kHz, 100 dB) |
| Water Protection | Won't protect the headphones from water exposure |
| Waterproof | No |
| Water Resistant | No |
| Performance Highlights | Improved transducer airflow |
| Driver Technology | Dynamic |
| Diaphragm Size | 38 mm |
| Magnet Material | Vented magnet system |
| Earcup Style | Open-back |
| Earcup Type | Open-back |
| Recommended Use | Music listening |
| Highlighted Uses | Extended musical exploration |
| Suitable For Kids | Can be gifted to children |
| Typical Users | Audiophiles |
| Style | Headphones |
| Weight | 260 g |
| Dimensions | W7.1'' (18.0 cm), Volume 193.84 in3 (3,176.40 cm3) |
| Foldable | No |
| Material | Ultra-light aluminum (voice coil) |
| Monaural | No |
| Pattern | Perforated grille (covers the outer part of the headphones) |
| Manufacturing | Designed in Germany |
| Assistant Support | No voice assistants |
| Included Accessories | 6.3 mm to 3.5 mm adapter |
| Supported Accessories | Replacement pads |
546 reviews
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Price Summary
Price Range
$613.00 - $950.00
Stores
12 stores
Maximum Savings
Up to 35% OFF
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