Your cart

CUSTOM MADE BLUETOOTH EARPHONES

Choose from 4 different speaker configurations engineered to offer the ultimate audio experience.

UE 5 CSX

UE CSX

Speaker Configuration: UE 5 CSX

The UE 5 CSX features dual speakers. Vibrant and punchy, these earphones are the standard in high-performance earphones and are expertly tuned for everyday listening.
The UE 7 CSX features 3 speakers. They’re big, velvety, full of crispness and depth. With a focus on the mid-range, they are perfectly tuned for vocals, classical and jazz.
The UE 11 CSX features four speakers. They’re quick, punchy, tight, robust and full of low-end energy. With a dedicated sub speaker, they are perfectly tuned for big music and big beats.
The UE 18+ CSX features six speakers. They’re rich, detailed and dynamic. With highs, mids, and lows powered by dedicated speakers for maximum audio versatility, they are precisely tuned for all musical genres.
  • UE 5 CSX
    2 Speakers
  • UE 7 CSX
    3 Speakers
  • UE 11 CSX
    4 Speakers
  • UE 18+ CSX
    6 Speakers
Color: Clear
Jet Black Clear Translucent Jet Black Translucent Lucky Red Translucent King Blue Carbon Fiber Mother of Pearl Wood
Jet Black Clear Translucent Jet Black Translucent Lucky Red Translucent King Blue Carbon Fiber Mother of Pearl Wood
Jet Black Clear Translucent Jet Black Translucent Lucky Red Translucent King Blue Carbon Fiber Mother of Pearl Wood
Jet Black Clear Translucent Jet Black Translucent Lucky Red Translucent King Blue Carbon Fiber Mother of Pearl Wood
Pay Now
Regular price $ 499
or
As Low As
$/mo Prequalify Now
  • 30 Day Risk-Free trial
  • 1 year warranty
  • Easy at-home fitting

Choose Your Audio Experience

Every pair of Ultimate Ears contains speakers with up to 12 balanced armature drivers precisely tuned to give you an unmatched audio experience. Choose from 4 models, each painstakingly engineered to deliver a full compass of sound.
Answer a few questions and we'll recommend the right model for you
  • UE 5 CSX 2 speakers
  • UE 7 CSX 3 speakers
  • UE 11 CSX 4 speakers
  • UE 18+ CSX 6 speakers

UE 5 CSX

UE 7 CSX

UE 11 CSX

UE 18+ CSX

Custom Sound Profiles

All Day Comfort

Having a secure, custom fit also provides the most important benefit if you use your earphones for extended periods of time -- all day comfort.  Ultimate Ears are designed so you can travel, work, listen at leisure and forget about common irritations like ear soreness.

Noise Cancellation

Ultimate Ears are custom fit to create the closest-fitting seal possible between the earphone and your unique ear shape. The advantage of this fit is the physical exclusion of external noise, or what’s called passive isolation. Passive isolation blocks out the sound that is trying to get in, versus introducing new sounds to block out ambient noise. The result is 26 decibels of noise cancellation, as much, or more, than most other earphones on the market.

Swappable Cables

Each pair of Ultimate Ears CSX earphones come with both Bluetooth and auxiliary cables. Both cables are sweatproof, flexible, comfortable and feature our award-winning cable connection system, allowing for a quick and easy transition from your Bluetooth wire to your hard-wired, so when your battery dies, or you want to plug into in-flight entertainment, you can do so with ease.

"After trying several high quality earbuds, I finally found the ULTIMATE EARS with a custom fit and excellent audio quality. I recommend them as the last set that you will ever need."
"These are the best fitting and highest quality earbuds I have ever had! I use them a lot, and every product I had before were just not up to it, and I ended up throwing them into a drawer and forgetting about them. These UE buds are simply the best."
"UE’s are amazing for planes they block all the noise and allow you to listen with high fidelity at low volume!"
"After trying several high quality earbuds, I finally found the ULTIMATE EARS with a custom fit and excellent audio quality. I recommend them as the last set that you will ever need."

Tech Specs

UE 5 CSX

2 proprietary balanced armatures with integrated 2-way crossover 

INPUT SENSITIVITY
119 dB @ 1 kHz, 1mW

FREQUENCY RESPONSE*
5Hz - 22kHz

NOISE ISOLATION
-26 decibels of ambient stage noise.

IMPEDANCE
21 Ohms @ 1 kHz

UE 7 CSX

3 proprietary balanced armatures (speakers) with an integrated 2-way crossover

INPUT SENSITIVITY
124 dB @ 1 kHz, 1mW

FREQUENCY RESPONSE*
5 Hz - 22 kHz 

NOISE ISOLATION
-26 decibels of ambient stage noise. 

IMPEDANCE
21 Ohms @ 1 kHz

UE 11 CSX

4 proprietary balanced armatures with 3-way crossover

INPUT SENSITIVITY

119 dB @ 1 kHz, 1mW

FREQUENCY RESPONSE*
5Hz - 22kHz 

NOISE ISOLATION
-26 decibels of ambient stage noise. 

IMPEDANCE
18 Ohms @ 1 kHz

UE 18+ CSX

6 balanced armatures and 4 passive crossovers

INPUT SENSITIVITY
105 dB @ 1 kHz, 1mW

FREQUENCY RESPONSE*
5Hz - 22kHz

NOISE ISOLATION
-26 decibels of ambient stage noise.

IMPEDANCE
37.5 Ohms @ 1 kHz