The M Audio IE40 reference earphones employ patented Ultimate Ears technology to deliver an unparalleled personal listening experience.
With the same triple-driver architecture, dual-bore design and sonic signature as Ultimate Ears’ renowned custom monitors, the IE40s provide a premium solution that fits any ear. The earphones operate like professional three-way monitors by splitting the frequency range across three drivers, which allows them to reproduce highs, mids and lows with pristine accuracy and superb balance. And with 26dB sound isolation, the IE40s transform any location into an ideal monitoring environment—whether you’re on stage, in the studio or traveling through a noisy public space. It's like carrying studio-grade reference monitors with you wherever you go.
M Audio IE40 Features
- Stage-proven Ultimate Ears technology
- Triple-armature driver design for separate high-, mid- and low-frequency reproduction
- Patented dual-bore technology delivers highs and lows via separate canals for maximum sound field
- Integrated passive crossover network directs sound frequencies to the appropriate speakers
- 26dB isolation from outside noise
- Professional ear loops for a secure fit
- Universal fit kit with silicone and foam tips for custom fit and maximum isolation
- User-serviceable 46 inch cable
- Gold-plated 1/8 inch input connector with 1/4 inch adapter
- Sleek styling with dark-chrome finish
- Custom metal carrying case
- Flexible attenuator/limiter for overload protection
 |
Proven Ultimate Ears Technology
M-Audio professional reference earphones incorporate acclaimed Ultimate Ears technology—the same industry standard that has revolutionized live performance monitoring. Many of today’s best-known touring artists and their sound engineers trust Ultimate Ears for the utmost in comfort, accuracy and reliability. |
Exceptional Frequency Response
Without great frequency response specs, you’re missing most of your music. The IE40 earphones deliver an amazing 20Hz-16kHz frequency response, allowing you hear all of your music—from soaring highs to tight, deep bass. |
 |
 |
Three Precision-Balanced Armature Drivers with Crossover Network
The rich, full-spectrum sound of the IE40 reference earphones owes much to the use of three separate high-definition, precision-balanced armature drivers for high, mid and low frequencies. Armature drivers—the same technology used in Ultimate Ears’ premium custom earphones—deliver high efficiency, extended high frequencies, clear, precise mid-tones and superb natural bass. In addition, they are significantly smaller and more accurate than comparable dynamic drivers. The IE40 audio crossover network routes each frequency of your music to the driver that can best reproduce it—exactly the same principle used in the finest studio monitor design. |
Superior Isolation and Comfort
The IE40 earphones boast 26dB of sound isolation. This greatly diminishes outside noise to deliver a purer listening experience—without the loss of sonic detail that occurs with noise-cancellation technology. The isolation also helps protect your ears because all the nuances of your music are apparent at low volumes. The included universal fit kit allows you to customize the fit, ensuring optimal isolation and comfort for hours of listening. |
 |
 |
Patented Dual-Bore Design
Ultimate Ears’ proprietary dual-bore design delivers a wider sound stage through separate acoustic canals for high and low channels, allowing the sound to be mixed naturally in your ear. In contrast, multi-driver, single-bore designs mix the highs and lows inside the earphone, which narrows the sound, creates audible turbulence and ultimately lowers the fidelity of your music. |
Included Attenuator/Limiter
The IE40 earphones include a flexible attenua-tor/limiter that conditions the output from high-volume sources to a comfortable listening level. This is especially useful when enjoying music and movies on airplanes—the adapter’s limiting function also spares your ears during loud in-flight announcements. |
 |
Professional Ear Loops
The hanging cables in traditional designs can catch on nearby objects and cause the earpieces to loosen or pop out altogether. All IE models feature professional loops that comfortably hook cables over and behind the ear to minimize that problem. And if your 46 inch detachable cable ever does become damaged, simply replace it instead of your earphones.