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Philips Fidelio X1

Fidelio Premium HD High Fidelity Stereo Headphones Open-Back Headset with Large 50mm Drivers

Discontinued
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This item has been discontinued

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General Features:

  • Professional Over-Ear Hi-Fi Stereo Headphones
  • Large 50mm neodymium drivers for precise range
  • Double layered ear shells prevent resonance and vibration
  • Acoustic open back construction for clear audio playback and increased imagery
  • Self adjustable hammock with 3D mesh for the perfect fit
  • Pre-tilted drivers fit the ears for minimal sound reflection
  • 3m OFC woven cable ensures high quality signal and durability
  • Deluxe memory foam earpads for long-wearing comfort
  • Specially tuned diaphragm maintains uniform sound precision
  • Dedicated cable management clip for tangle-free ease
  • Long Cable allows users the ability to move around and increased freedom in the studio
  • Main Color: Black (Brown Headband)
  • Additional Models Available (Same Series): Philips Fidelio L1 (Semi-Open Over-Ear) , and Philips Fidelio M1/M1i/28 (Closed-Back)
  • 1-year Manufacturer's Warranty

Product Specifications:

  • Speaker Type: Dynamic Driver
  • Driver Size: 50 mm
  • Acoustic Design: Open-Back Diaphragm
  • Frequency Response: 10 - 40,000 Hz
  • Sensitivity: 100 dB @ 1 mW
  • Maximum Power Input: 500 mW
  • Distortion Level: <0.1% THD (Total Harmonic Distortion)
  • Impedance: 30 Ohm

Whats In The Box

  1. Philips Fidelio X1 Premium Over-Ear Headphones
  2. 1/4" Adapter Plug (6.3 mm to 3.5 mm)
  3. Cable Clip
  4. Owners Manual & Operating Guide

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.

Enclosed-Ear
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.
Home/Portable
Lifestyle

This is the lifestyle that the headphones are designed for. Each style has unique features that make it perfect for particular people.

Athlete:
Designed for those that are active. These headphones are made to stay in the ear during workouts. Whether you frequent the gym a lot or go running outside in the fresh air, these active style headphones will be your best friend.

Audiophile:
For those that need the best in music quality. These audiophile headphones are engineered to produce high fidelity and accurate audio replication.

DJ:
Disc Jockeys (DJs) require a special type of headphone that can meet their professional needs. These headphones are durable, loud, and will often allow for one ear listening.

Fashion Enthusiast:
For those that want to make a fashion statement with their headphones. Not only are these headphones designed with great sound quality in mind, but also great looks!

Gamer
This lifestyle speaks for itself! If you love video games and want a pair of headphones that will deliver explosive sound and allow you to communicate with others, this is where you need to shop!

Music Lover:
These headphones are made to sound great. They are designed to produce rich, brilliant sounds that will play your music in a manner that the artists would appreciate. These headphones are for those that love music.

Musical Production / Recording Artists:
You're a music creator. Whether you're producing and mixing it down or in the studio recording yourself, you need a pair of headphones that will reproduce the music perfectly without any coloration. Look here for reference quality studio monitoring headphones.

Student:
Headphones need to be affordable and durable to keep up with the student lifestyle. A variety of styles can be considered a pair of student headphones.

Traveler:
Those that often find themselves on planes or on the road a lot. These headphones are compact, lightweight, and have a portable design. Some of the headphones in this lifestyle will feature noise cancellation technology that will help shut out outside noise.

Music Lover
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.
Open

General Features

Noise-Canceling
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.
No
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.

Corded
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.

No
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.
No
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.
No
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).
10 - 40000 Hz
Sensitivity
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".
100 dB
Driver Size
This refers to the diameter of the driver (speaker) on each side of the headphone.
50 mm
Driver Type
The physical design of the driver in the headphones.
Dynamic
Impedance
The opposition to electric current, a higher impedance means a higher electrical resistance. This is measured in ohms.
30 ohms
Primary Color
This is the main color of the item.
Black
Secondary Color
A color that compliments the main color of the product.
Brown

Specials with this Item

Promotions
Promotions we have offer More Ways to Shop for items that are on clearance, last chance, special offer and sales, Made in America, and more!

Warranty and Return Policy

Parts Warranty Duration
1 year
Labor Warranty Duration
1 year
Warranty Provider
Manufacturer

Summary of Customer Ratings & Reviews

Rating Distribution

5 Star
100%
4 Star
0%
3 Star
0%
2 Star
0%
1 Star
0%

Average Attribution Rating

Durability
5.0
Value
5.0
Features
4.0
Design
5.0
Usability
5.0
James

North Hollywood, CA

Overall
Durability
Value
Features
Design
Usability
WOW!!!

June 28, 2013

I saw these when I was actually looking for the L1 model here. I was a little confused about the "Semi-Open" so i called and got some details. As it turns out, I am glad that I did. These X1's blew away every bit of my expectations. The overall imagery is flawless. Crystal clear sound. Bass is very present but tight and detailed. And the build quality on these are second to none! Solid metal frame and headband pad is the most comfortable headband ive ever used. Its far more comfortable than the Q701s I tried from my brother - They sounded good, just not comfortable. Every single person that i let try these just gets really "wide eyed" in dis-belief. Worth every penny!

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Product Summary

Manufacturer

Model Number

X1/28

UPC

0609585232945

Weight

2.50lbs

Internal SKU

x1-28

Internal Product ID

70121

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: Philips Fidelio X1

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  • Headphone Acoustic Principles