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Sennheiser HD 439

Premium Over-Ear Headphones w/ Interchangeable Single-Sided Cables


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This item has been discontinued

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What's In The Box?
  1. HD 439 Headphones
  2. 1.4m Detachable Cable (534442)
  3. 3m Detachable Cable (534443)
  4. 1/4" (6.3mm) Adapter Plug
  5. User Manual
  6. Authorized 2-Year Warranty

General Features:

  • Wired HD Series Over-Ear Headphones
  • Designed with your music lover lifestyle in mind
  • Ergonomic design provides a comfortable fit
  • Optimized for listening on the go
  • Closed circumaural design isolates against ambient noise
  • Neodymium magnets provide an enhanced bass experience
  • Adjustable headband for comfortable listening sessions
  • Soft, Luxurious Velour Earpads provide 5-Star Comfort for extended listening convenience
  • Primary Color: Black
  • Manufacturer Model Number: Sennheiser HD 439 (HD439)
  • Manufacturer Part Number: Sennheiser 504765
  • Authorized Internet Dealer
  • 2 Year Manufacturer's Warranty

Product Specifications:

Headphone Design

Headphone Type

Headphone type refers to the construction of the headphones.

Around the Ear means that the headphones wrap around the ear to provide a secure fit. This is most often seen in active and sports headphones.

Around the Neck means that the headphones wrap around the neck. This is also seen in active and sports headphones.

Earbuds means that the right and left sides of the headphones are separated and will fit securely into the ear. These are small, compact, and user friendly.

Over the Head headphones mean that the right and left speakers are connected with a support that goes over the head and rests on top. This is the typical headphone type.

Over the Head
Earpiece Design

This is the design of the earpieces on the headphones. Some headphones go inside the ear, while others rest on the outside of the ear. This helps you know exactly what type of headphones you will be receiving.

In-Ear: The ear buds go into the ear. Most often, the right and left ear buds are two separate pieces.

Enclosed-Ear: Usually are found on the larger headphones. They rest on top of the ear and have padding for comfort, as well as enclosing the ear to the speaker. This type of headphone helps to filter out surrounding noise.

On-Ear: This type of headphone involves the speaker sitting gently on the ear without going in the ear or sealing it off.

Specifically For
Some headphones can use an IR Transmitter in your vehicle, while some can be plugged into your media device and be used on the go or at home.
Acoustic Principle
The basic design of the headphones. There are 3 different types: Open: Have ports that allow air through the back of the diaphragms, enabling the headphones to sound like the music is coming from an outside source. Closed: Completely sealed and have no air passing through the diaphragms. Sounds like you are in a closed off room. Semi-open: Have slots or ports in the back of the cup and are partially open. This allows for a mixed sound between an open and closed headphone.

General Features

Noise Reduction technology removes unwanted noise from a signal. Background or ambient noise can be removed to produce clearer speech and enhanced hearing. Typically these Active Noise Canceling (ANC) headphones are powered and use batteries to activate the noise canceling technology. Also referred to as Noise Reduction or Noise Cancellation.
Headphone Connection
This is how the headphones connect to the audio source.

Corded means that the headphones use a cord to transfer the audio signal.

Wireless means that the audio signal is transmitted wirelessly to the headphones.

1/4" Stereo Jack Adapter
Some headphones will come with a 1/4" stereo jack adapter to connect the usual 3.5mm jack to a 1/4" stereo plug.

1/4" Stereo jack is a larger audio jack that select electronics have.

Volume Adjustment
Volume Adjustment means that the headphone (independent of the source) can adjust the playback volume. Many headphones and ear buds have in-line volume control, which allows adjusting the audible volume from a switch on the headphones cord. Other headphones have a volume knob on the headphone can.
Built-In Microphone
This means that the headphones or earbuds have a built-in microphone. This can be a microphone on the cord, built into the headphone, or even a boom microphone. These mics can be used for music devices like iPods, for Smartphones to make and receive calls, or for gaming purposes.
Frequency Response
The range of frequencies the speaker will reproduce (lowest frequency to the highest). Bigger is better, meaning the wider the range, the better. The optimal range is 20 - 20,000 Hz (which is the range of human hearing).
17 - 22500 Hz
An efficiency or sensitivity rating tells you how effectively a speaker converts power into sound. The higher the number, the more efficient the speaker and the louder it will play with the same input power. An efficient speaker helps you maximize your available power. Most sensitivity ratings measure the speaker's output with 1 watt of input, 1 meter from the speaker. Some speakers' sensitivity is measured with 2.83 volts of input, instead of 1 watt.
Efficiency (1w/1m) is not an accurate indicator of a subwoofer's output capability and should not be used as a comparison to other speakers or subwoofers to determine which one is "louder".
112 dB
Driver Type
The physical design of the driver in the headphones.
The opposition to electric current, a higher impedance means a higher electrical resistance. This is measured in ohms.
32 ohms
Primary Color
This is the main color of the item.
Secondary Color
A color that compliments the main color of the product.

Warranty and Return Policy

Parts Warranty Duration
2 years
Labor Warranty Duration
2 years
Warranty Provider

Summary of Customer Ratings & Reviews

Rating Distribution

5 Star
4 Star
3 Star
2 Star
1 Star

Average Attribution Rating


Chesterton, IN

Most comfortable headphones to date

April 24, 2014

I'll start off with the best feature which is the comfort of these headphones. Honestly the most comfortable headphones I've ever come across you can forget you are wearing them that's how great they feel. They sound pretty great as well could use a little more bass for my taste but the clarity makes up for that. My others were aerial 7 tanks that have 4G mm drivers I believe so I might be a little biased. The build quality seems very solid but the material doesn't appear that way. I've carried them in a backpack for about a month now and they haven't received any damage. Don't hesitate to get these if they are within the range you are looking to spend, you won't regret it.

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Louisville, Kentucky

Great product

August 7, 2014

I love these headphones, I got them off ebay for $75, and after listening to them I gave away my beats solos. Excellent mids, excellent highs, and excellent lows once you do the tape mod (look it up). I use this with a fiio e6 and it sounds better than headphones twice it's price.

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Product Summary


Model Number

HD 439





Internal SKU


Internal Product ID


Sonic Electronix Wiring Guide

Wiring Diagram Legend

Warning: The image depicted shows the resistance change when wiring multiple subwoofer terminals. Please refer to your subwoofer's owner's manual for the proper wiring of its terminals. Sonic Electronix, Inc. is not responsible for damage caused to your audio system or vehicle due to improper installation. Please call tech support at 1-877-289-7664 if you require additional assistance.

Product Name: Sennheiser HD 439

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