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Sennheiser Black HD 429 3.5mm/ 6.3mm Connector Around-Ear Closed-Back Stereo Headphone

  • 18Hz-22KHz
  • 3.5mm/ 6.3mm Connector
  • 10 ft, single-sided Cord Length
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Sennheiser CXC 700 3.5mm Connector Canal Earphone with NoiseGuard (Digital)

Comfortable, durable and powerful, these headphones provide great stereo sound from your portable audio equipment. Expect solid bass response and great noise suppression, along with uninhibited movement and good looks.

The Sennheiser HD 429 melds cutting edge sound with ultra-modern design. The closed-back design blocks ambient noise for use on-the-go, or in front of the latest movie download. The outer cup is covered in a textured grid which adds stability while showcasing the logo that's synonymous with true sound. The single-sided cable stays tangle-free, making it easy to use and store - if you can find a reason to take them off.


The HD 429 delivers powerful bass-response without the need for batteries or separate amplifier circuits while maintaining clarity. The low-impedance transducer system makes it ideal for use with portable media devices (tablets, MP3 players, smartphones, and netbooks). Moreover, the included 1/8in. (3.5mm) to 1/4in. (6.3mm) adapter allows the HD 429 to be plugged into your home audio receiver or other stereo equipment.

The HD 429 has closed cups that go around the ear damping the background noise, keeping your listening private. And the soft leatherette cushions are replaceable and plush for long-term listening comfort.

The single-sided cable reduces tangles.

  • Superior Sound Quality
  • Noise Reduction and Comfortable Design
  • Single-Sided Cable


Color Black
Frequency Response 18Hz - 22KHz
THD <0.1%
Input Impedance 32 ohms
Sensitivity 110dB Max SPL
Connector 1/8in. and 1/4in. (3.5mm and 6.3mm)
Ear Coupling Around-Ear
Cord Length 10ft, single-sided

What's in the Box

  • HD 429 Headphones
  • 1/4in. (6.3mm) Adaptor Plug


Learn more about the Sennheiser Electronic corp. HD 429


Stereo Headphone
HD 429

General SPEC

Frequency Response
Input Impedance
32 ohms
110dB Max SPL
3.5mm/ 6.3mm
Ear Coupling
Cord Length
10 ft, single-sided


Closed design aggressively dampens ambient noise

Powerful bass-response without the need for batteries or separate amplifier circuits- while maintaining clarity

Low-impedance transducer system is ideal for use with portable media devices (tablets, MP3 players, smartphones, netbooks)

Can also be used for home hi-fi

Leatherette ear cushions are replaceable and aid in blocking noise


Package Contents
HD 429 headphones

1/8" (3.5mm) to 1/4" (6.3mm) adapter

Quick Info


  • Limited Warranty period (parts): 2 years
  • Limited Warranty period (labor): 2 years

Customer Reviews of the Sennheiser Electronic corp. HD 429

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  • Anonymous
  • 3/9/2014 9:50:05 PM
  • Tech Level: Somewhat High
  • Ownership: 1 week to 1 month

4 out of 5 eggs

Pros: great sound
very comfortable
solid jack connection

Cons: the cord really is just too long. I have the twist tie still around it bundling up like 5 feet of it. the wire is really thin too. A normal length braided cable would've really made these things feel solid.

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  • Erle F.
  • 9/14/2013 8:07:11 PM
  • Tech Level: Average
  • Ownership: more than 1 year

1 out of 5 eggsI thought Sennheiser was a stand-up company...

Pros: Comfortable and good noise cancellation

Cons: Flimsy cord

Other Thoughts: I travelled to/fro work with these headphones, but the flimsy cord wasn't built for the movement and the connection by the jack became compromised causing intermittent delivery of audio. Sennheiser promptly replaced these with HD429's.

Again the same thing happened. I sent them back thinking I'd get the same quality service. Since more than 3 months ahd passed and these had been a warranty replacement, I wasn't entitled to another replacement. Only after I contacted them several months after sending did they acknowledge receipt of the headphones, but they never even sent back the broken headphones. At least I could have had someone local fix the cord.

I've since moved on from Sennheiser. The HD428's or HD429's would probably make a fine pair if you keep them in a single location and avoid the swinging cord motion which wears the audio jack connection.

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  • Teresa M.
  • 8/6/2013 12:07:06 PM
  • Tech Level: Somewhat High
  • Ownership: 1 month to 1 year
  • Verified Owner

5 out of 5 eggs

Pros: It is a very nice pair of headphones,
great quality, comfortable, long cord, and is compatible with a Sound Blaster dongle I had, lots of headphones aren't.

Cons: Without a sound card or a sound dongle, it doesn't sound good, and is too quiet, if you want to buy these, make sure you have the right equipment to use their true power, since on board isn't enough to power them.

Other Thoughts: I bought them when they were on sale for $70, I see they are 80 now, I would still recommend them, only if you have a sound card to use its power.

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  • Nicholas J.
  • 7/12/2013 8:01:00 AM
  • Tech Level: High
  • Ownership: 1 month to 1 year

5 out of 5 eggsBottom of the High-end

Pros: -Excellent, low distortion sound reproduction, which Sennheiser is known for.
-Plastic band is not the best, but it's sturdily built.
-Despite near-constant use, I have had these headphones for almost a year now with no problems.
The cable on mine has been tugged on with forces that would have ripped the wires for other headphones out of their sockets, and it's still fine. Just goes to show the quality of construction from Sennheiser.
-Padding is plush and comfortable, though some of the glue on the top part has been worn off since a couple week's worth of use.* That's probably a one-off issue, as I haven't seen anyone else complain about it.
-Nice bass response that isn't overpowering.

Cons: -Cable length is long for headphones that were designed to be used with portable devices. It frequently gets tangled or caught in the wheels of my computer chair because of how thin the cable is, coupled with its length.
-Also, these headphones don't like to stay on my head if I lean it too far, or if move around too much. I recommend these for stationary listening only. Don't try to walk around with them on.

Other Thoughts: It's no HD800, but it is a very good pair of cans nonetheless.

*Because of the gap between the headband and the middle of the padding due to the worn-out glue, even my short hair gets caught in the gap if I don't set it straight down on my head. Pulling them off can be a little painful.

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  • Teresa M.
  • 4/19/2013 9:45:41 AM
  • Tech Level: High
  • Ownership: 1 week to 1 month
  • Verified Owner

4 out of 5 eggs

Pros: These headphones are really nice, good sound (with a sounds card, if not dont get them).

Cons: They feel like cheap plastic, like with just me putting them on/off will break them one day, which isn't good,
Also the sound is not very good without a sound card, its also very quiet without a sound card, overall these are decent,
cant get much better for the price, so I'll keep it at 4 instead of 3 eggs.

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  • Lisabeth E.
  • 1/26/2013 11:44:53 PM
  • Tech Level: Somewhat High
  • Ownership: 1 month to 1 year

4 out of 5 eggsVery Nice

Pros: -Good response of all frequencies
-Comfy ear-pads
-Can be run off of any device (Ipods, computers, etc.)

Cons: -Cord is thin and easily breakable
-Mids are too high, pushes out the rest
-Not "bass" headphones by any means
-No detachable cord

Other Thoughts: I bought these for a friend as introductory "good" headphones. I bought a 3.5mm female jack, took out the original cord and soldered the jack in place with silver solder along with some plastic epoxy. It allows for any 3.5mm male jack to connect to it so it's removable like any good pair of headphones. No issues have been had so far, the person finds the sound to be much better than any other headphone and the structure to be of good quality. Overall these are greatly priced currently and are worth every penny.

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  • david w.
  • 8/3/2012 9:17:43 AM
  • Tech Level: Somewhat High
  • Ownership: more than 1 year
  • Verified Owner

1 out of 5 eggsPoor material quality

Pros: Still has class Sennheiser sound.

Cons: I have been a customer of Sennheiser's headphones for close to a decade, I originally owned a pair of HD 428's that lasted 3 years. Now in the last 4 months I've gone through a new 428 and now a 429 that both have deteriorated disturbingly quickly as the wire fails somewhere just past the jack.

Other Thoughts: I can't recommend a replacement brand just yet, but for my atleast I am not going to throw anymore money at Sennheiser equipment as it is definitely no longer remotely close to professional grade.

1 out of 1 people found this review helpful. Did you? Yes No

  • Anonymous
  • 7/3/2012 11:41:50 PM
  • Tech Level: Average
  • Ownership: 1 month to 1 year
  • Verified Owner

5 out of 5 eggsNice Headphones

Pros: High quality plastic, the foam and material covering it are quite comfortable. Sound is very clear, bass doesn't drown out the treble. Gold plated connector, shouldn't wear out anytime soon. Fits my rather small head and my brother's large head comfortably.

Cons: Doesn't quite grip as well as I had hoped, wobbles a bit and fatigues ears after a while.(1 or 2hrs). The bass is a tiny bit too quiet, personal preference though. Cord is something off a pair of earbuds.

Other Thoughts: Paired with a Xonar DX, the bass is easily rectified and sounds great.

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  • Anonymous
  • 5/3/2012 1:18:59 PM
  • Tech Level: Somewhat High
  • Ownership: 1 week to 1 month
  • Verified Owner

5 out of 5 eggsFantastic headphones

Pros: I bought these after the connection to the earcups on my HD 202s began to fail on both sides.

Sound quality is fantastic - at least to me - and improved after breaking them in for a couple weeks, although the sound is very flat and benefits from a slight bass boost in my opinion. They're better than any other pair of headphones I've owned, although that's not saying much as these are the most expensive I've used.

Build quality feels solid enough, and they're very comfortable as well, not too tight and stay on your head. They also dampen outside noise significantly.

Cons: No real complaints except that the cord is very, very thin, almost worryingly so.

Other Thoughts: Definitely recommend these if you're looking for midrange headphones.

1 out of 1 people found this review helpful. Did you? Yes No

  • Brandon F.
  • 3/22/2012 8:04:38 PM
  • Tech Level: Average
  • Ownership: 1 week to 1 month

5 out of 5 eggsGreat first pair.

Pros: I love music, and have been on the lookout for some decent phones for a while, and one day I found these. I loved the look and specs of them, and wanted a pair. So I bought em, and they worked awesome.

I know there's a thing about Sennheisers and burning them in for 200+ hours, but honestly-- I've been letting them run all night for the past month, as well as extensive day-use, and I can't tell a difference. They sound great either way.

I'm no audio expert, so I don't know what GREAT headphones sound like, nor terrible ones, but I do know that these are not terrible. They are worth every penny, with comfort, style, and sound alike.

Cons: The only real problem I had with these is the cord. It's super long, which may be awesome for some people, but I'm a pretty mobile person, and it wasn't too convenient for me. I ended up just tying a good 5-foot section of it together with a rubber band to shorten it, so nothing to fuss over.

Other Thoughts: I haven't tried any headphone amps with these yet, but I'll probably pick up a $40-60 one and see if it enhances the sound any.

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