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Sennheiser MX 660

alaTest has collected and analyzed 252 reviews from magazines and websites. Views about the usability and comfort are generally positive. The value for money and bass quality are also mentioned favorably. Some have doubts about the size.

sound, bass quality, value for money, comfort, usability


We analyzed user and expert ratings, product age and more factors. Compared to other Headphones the Sennheiser MX 660 is awarded an overall alaScore™ of 75/100 = Good quality.

Review analysis

(Based on 252 reviews)

User Reviews  

Showing 17 review(s)

Expert Reviews User Reviews
Showing 1 - 10 of 17 Show Reviews: in English | in other languages (10)

Consumer review by:

Amazon review summary for Sennheiser MX 660


alaTest has collected and analyzed 82 user reviews of Sennheiser MX 660 from The average user rating for this product is 4.1/5, compared to an average user rating of 3.9/5 for other Headphones on

sound, bass quality, value for money, comfort, portability

87% of the reviews on give this product a positive rating.

This summary is based on the products: Sennheiser MX 660 Black Earbuds with Volume Control and Cable Winder (Black)Sennheiser MX 660-S High Performance Dynamic Basswind Earbuds with Volume Control (Silver)Sennheiser MX 660-S High Performance Dynamic Basswind Earbuds with Volume Control (Silver)

Consumer review by:

Amazing sound, garbage build


I bought these to replace these Sennheiser earbuds that I bought on here.. they were long neon green cable "sport" ones that also had amazing sound reproduction. Unfortunately, those ALSO had the annoying rubbery materal. Considering their sporty use,...

Love the audio quality.. clean, sharp, bassy clarity of music. What you'd expect from Sennheiser. The volume controller slider works well, enough friction to where it'll feel tactile

Where to begin ; Volume could be higher, even when blasting player, pushing slider all the way up should yield louder volume ; Volume slider should have been where left channel and right channel separate, instead, it's about an inch below a random...

Consumer review by:

not bad.


Not horribly expensive ; nice extras like a foam block to wind the wire and a coin-purse thing to carry them in ; not uncomfortable ; Mostly good sound

frequency response seems just a little 'off'. Bass and low mids seem a little boosted. The relative lack of treble kills clarity ; volume slider seems kind of pointless (volume can be cut approx. 50%). I would rather have a less expensive product...


Consumer review by:

Great sound


Great sound

Too small to fit in my ears so I use part of an earplug to get them to stay in

Consumer review by:



Sound Amazing. The best earbuds you can get for under 100 period

Not SUPER loud.. but loud enough so that everyone around you can fully understand every word of the song your listening too

Consumer review by:

maybe a good buy?


Kindof pricey. If they fail in any way ... i'll be upset.

Delivers sound, so that's a plus. I'll say the sound is "rich," but I'm not much of a judge. Looks slick

Sometimes the soft covers fall out. The buds are a little large and it hurts my (left) ear when I put them in

Consumer review by:

SENNHEISER MX660 black 3.5 mm Gold-Plate Connector Earbud headphone with Basswind


I looked for quite a while for replacement earbuds and I am glad I chose these. They really are high quality - in sound and construction.

Incredible sound. I didn't think you could get this depth of sound out of earbuds. There is a lot more detail than from the stock ipod buds. The bass is fairly well balanced without being overpowering and lacks the typical "tinniness ; The holder and...

The earbuds ARE bigger than usual. I have larger ears and they fit fine, so for me it's not a con - however, my wife can not use them ; I was a little worried about the covers ripping while trying to get them on - they didn't, but it was also harder to...

Consumer review by:

SENNHEISER MX660 black 3.5 mm Gold-Plate Connector Earbud headphone with Basswind


serious about what you listen to,then buy the best your buget allows.

dang good sound @ any price! i've owned sennheiser ; headphones 4 over 20yrs.these have met my expectations.never heard of sennheiser? buy a pair and you'll be telling all your friends

none,dont know what earlier complaints about thier size ; are about,they fit myself just fine

Consumer review by:

Good sound for the price


Great sound for the price. I debated these versus the Bose earphones - I'm glad I went with these. I don't think I could justify the extra cost


Consumer review by:

SENNHEISER MX660 black 3.5 mm Gold-Plate Connector Earbud headphone with Basswind


Sound is decent for the price

Too big for my ears. It seems I lose a lot of sound because the bud does not fit in my ear completely and I have average size ears


Product Specifications

The MX 660 are high-quality earphones with Sennheiser's innovative "Basswind" system for superior, bass-driven stereo sound experience. They feature a volume control integrated in the cable and a cable winder for convenient cable length adjustment.

Audio Output

Connectivity Technology:Wired
Headphones Form Factor:Ear-bud
Headphones Type:Binaural
Product Type:Headphones
Response Bandwidth:18 - 21000Hz
Sound Output Mode:Stereo

Audio System

Recommended Use:Game console / Portable audio system/Portable audio system


Packaged Quantity:1
Product Line:Sennheiser MX

Remote Control

Type: None

Service & Support

Type:2 years warranty