HD 660 S2 Open Back Over Ear Wired Audiophile Headphones

$949.00

Incl. GST + Free Shipping

HD 660 S2 Open Back Over Ear Wired Audiophile Headphones

Dive deeper into legendary sound.

$949.00
Save $-949.00
Incl. GST + Free Shipping
4 payments of $237.25 with

Trade-in your old headphones for a refund*

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Thank you for choosing well, for your old pairs.

To make the post submission experience of your trade-in assessment seamless, you would currently be able to submit your trade-in assessment with an eligible Sennheiser headphones purchase only. Great news, that these pair of Sennheiser headphones are eligible for you to complete and submit your online trade-in assessment.

If you haven't already, please be sure of adding these Sennheiser Headphones to cart firstly by going back and clicking on the BUY NOW button, which will add you trade-in submission automatically to your order, once have completed all the online assessments steps. You will get to see the assessed value for your trade-in submission on the checkout screen, eligible for being refunded once our trade-in partner has received your old pair of headphones.

What happens after submitting your Trade-in assessment can be found here.

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Step 01 of 06

Device Details

Every great listening journey has a next chapter. Assess the perceived value of your old headphones in quick four steps and retain that value for an improved listening experience.
Your estimate, instantly. Your upgrade, ready when you are.

Please select from the eligible list of headphones.

Are your headphones fully functional?

Fully Functional Means:

  • Headphones are able to power on, charge, and are able to hold charge (LED comes on when charging).
  • Original charging case is included and is in good working condition i.e. charges both In-ears, hinge opens and close cleanly, no corrosion on the connectors, and pairs with the headphones).

Are your headphones in good physical condition?

Good Physical Condition Means:

  • The headphones are not cracked, chipped, smashed, and the casing is not cracked.
  • The headphones do not have heavy wear (light wear can be accepted).
  • The original headphones charging case is not physically damaged, including no frame cracks.
  • No corrosion or water damage.
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Get an Estimate

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Estimated Trade-in value

$250.00

AUD - For your MOMENTUM 3 Wireless

Device MOMENTUM 3 Wireless
Fully Functionality Yes
Good Physical Condition No

Your headphones may not be eligible for trade-in. If you'd like to continue proceeding for your headphones, you may do so by contacting our partner directly at sennheiser.support@moorup.com.au.

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Step 02 of 06

Get an Estimate

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Estimated Trade-in value

$250.00

AUD - For your MOMENTUM 3 Wireless

Device MOMENTUM 3 Wireless
Fully Functionality Yes
Good Physical Condition No

Great going! You are half way through your Trade-in assessment. If you do not wish to proceed further, simply close this, and your assessment will not be included with our order. Alternatively, please follow below steps to complete your submission. :

  • We'll grab your contact details and address and share with our partner, Moorup, to start the return set up for your trade-in headphones.
  • You'll receive further instructions on completing your trade-in from Moorup by email. Complete Trade-in T&Cs can be found here.
  • Once Moorup receives your headphones, and validates the condition of the headphones and your identity, they will issue the refund to your nominated bank account. How Moorup handles your personal data can be found here.
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Step 03 of 06

Personal Details

We need a few details to complete your trade-in request. Your information will be securely handled in accordance with Moorup's Privacy Policy.

Please enter your name
Please enter a valid email
Please enter valid mobile number
Please enter your Address
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Step 04 of 06

Banking Details

We need a few details to complete your trade-in request. Your information will be securely handled in accordance with Moorup's Privacy Policy.

Please enter a valid BSB
Please enter valid Account number
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Step 05 of 06

Prepare my Headphones

Prepare to return your headphones.

The final step is to prepare your headphones for returning to Moorup.

Return your headphones at local post office

Once submitted, we'll email you a barcode you can take to any Australia Post location to return your headphones. All postage costs are covered by Moorup.

Disable Activation or Device Lock.

Before returning your headphones, all activation and headphones locks must be disabled. If a returned headphones is still locked, it will be assessed with a trade-in value of $0.

Not sure how to disable Activation Lock?

You can find a step-by-step guide on preparing your headphones for trade-in here at Moorup's Help Centre.

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Approved

For your MOMENTUM 3 Wireless

Headphones MOMENTUM 3 Wireless
Estimated trade-in value $250.00

Your trade-in request is received

Thank you for completing your trade-in assessment. Once your headphones are received and validated, $250 will be transferred to your nominated bank account details provided during the trade-in process by Moorup.

What's next?

You'll receive an email with the next steps. We'll need to verify your identity and once complete you'll receive pre-paid return postage details. Then it's time to drop that old pair of headphones off to Australia Post.

When will I receive my payment?

Once we receive a thumbs up from Moorup, refunds are typically processed within 7 business days.

What if I need help?

If you have any questions or want to check the status of your trade-in, contact us at sennheiser@moorup.com.au.

  • Extended sub bass
  • Natural, warm sound
  • Comfortable open-back design

HD 660S2

Enjoy your music on a completely new level. An intimate, relaxed sound signature combines with outstanding precision and exceptional comfort — and now, extended sub bass — for a deeply moving experience.

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  • Extended sub bass
  • Natural, warm sound
  • Comfortable open-back design

Features

  • Uniquely powerful vented magnet system for minimized distortion
  • Intimate sound with great timbre and deep, accurate sub bass
  • Outstanding quality designed in Germany, made in Ireland
  • Ultra-light aluminum voice coil with 300-ohm impedance for excellent impulse response
  • Plush ear cushions and open design for maximum comfort
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Your new desert island headphone

Every high-end headphone has its own unique personality. What if you could only own one?

Ever felt goosebumps from sound so real, it was as if the source was in the room with you? The non-fatiguing HD 660S2 gives people who love music an intimate way to connect more deeply with their favorite songs and artists. Breathtaking resolution and precision take you closer than ever to instruments and vocalists. Yet the sound is natural and balanced, never harsh or brash.

This warm, inviting signature combined with extended sub bass makes listening uniquely pleasant and rewarding. And with comfort this good, it practically begs you to keep going for endless sessions. That’s how HD 660S2 combines the best of many worlds to give you an intimate experience you won’t want to live without.

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Sub bass expands the entire sound

Double the sub bass heightens your listening experience.

Traditionally, audiophiles don’t get too excited about sub bass. It can easily get sloppy or boomy and become a distraction. And that’s a shame — because there’s so much more to experience here than just the gut punch of a kick drum. Did you know the low B of a 5-string bass vibrates at 30.9 Hz? Or that the lowest note on a concert piano comes in at 27.5 Hz? And of course, extended sub bass makes bass-heavy genres sound fantastic, too.

And that’s the magic trick here. In doubling the sound pressure at the very lowest frequencies, we’ve nevertheless retained extraordinary precision and balance throughout the sub bass, mid-bass, and beyond. Most impressive is how this affects the listening experience. Extension on the low end changes everything — by creating more space for the sound. Against a deeper backdrop, highs feel more brilliant, the soundstage deeper, emotions stronger.

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They feel as great as they sound

Comfy slippers, your favorite jeans, the HD 660S2. Some things just feel awesome to wear.

The velour earpads of the HD 660S2 can only be described as a tactile pleasure. With just the right amount of tension for proper acoustic positioning and supple padding, the headband won’t draw attention away from your music, either. As an open-back design, the HD 660S2 gives your ears an extremely comfortable climate, even for super-long sessions.

The low total weight and ergonomic headband rule out any potential discomfort on top of your head as well. Combined with excellent build quality made in Ireland, you’ll quickly grow attached to a listening experience that’s as physically pleasing as the warm, non-fatiguing sound at its heart.

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How do you one-up a line of legends?

Some of the most neutral headphones in the world are a tough act to follow.

As far back as the HD 580, high-end Sennheiser headphones have inspired generations with their balanced, natural reproduction. Recognized as benchmarks for neutral audiophile sound, the HD 600, HD 650, and HD 660S all share visible and audible DNA with the HD 660S2. The revised coil of the S2, for instance, now matches the 300-ohm impedance of the legendary HD 600 & HD 650. This new coil also provides higher magnetic force and electrical dampening for cleaner impulse response.

The surround is now more compliant, too, dropping the resonant frequency to 70 Hz. Considerable effort also went into optimizing the airflow around the transducer. There’s more sensitivity over the entire frequency spectrum because the magnet´s air gap works more efficiently now. Taken together, these measures result in even greater precision, speed, and resolution — with double the sound pressure at the lowest frequencies.

What’s in the box

HD 660S2 headphones, 6.3 mm cable (1.8 m), 4.4 mm cable (1.8 m) , 6.3 mm to 3.5 mm adapter and carry pouch.

Your new daily driver

If you’re going to be inseparable, good looks are a must.

Specifications

Article number (SKU)
700240
Transducer principle
dynamic, open
Transducer size
38 mm
Frequency response
8 – 41,500 Hz
Impedance
300 Ω
Sound pressure level (SPL)
104 dB (1 kHz, 1 Vrms)
Total harmonic distortion (THD)
<0.04% (1 kHz, 100 dB)
Ear coupling
Over-Ear
Weight
260g
Adapter
6.3 mm (1⁄4 inch) to 3.5 mm
Connector
6.3 mm (1⁄4 inch) jack plug, 4.4 mm balanced plug
Cable length
1.8m
Country of origin
Ireland
Magnetic field
4.5mT

What's included

  • HD 660S2 headphones
  • 6.3 mm cable (1.8 m), 4.4 mm cable (1.8 m)
  • 6.3mm to 3.5mm adapter
  • Carry pouch

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  • 5 stars: 1 (33%)
  • 4 stars: 1 (33%)
  • 3 stars: 1 (33%)
  • 2 stars: 0 (0%)
  • 1 star: 0 (0%)
S
Sujaudeen

Just received the product . The reviews are telling . The headphones do have amazing sound quality when paired with my audio player.

A
Amir

The Sennheiser HD660 S2 headphones offer truly amazing sound quality, striking a perfect chord with my audio preferences. They are exceptionally comfortable to wear, making long listening sessions a pleasure. The sound signature of these headphones is tailored exquisitely, catering beautifully to my taste. However, I find the use of a proprietary cable connection to be a significant drawback, leading me to deduct one star from my rating. Despite this, the HD660 S2 remains a worthy successor in the venerable 6 series, a line that has defined reference headphone sound quality for amateur audiophiles like myself for over two decades.

J
John
Over price Not recommend

Overprice Not recommend if people never have Sennheiser before and much improvement