I bought these because The church I've been playing with has an in ear system and i wanted to take advantage of using it. I've had them for a month and all they have done has been working great for me!
Westone UM Pro 20
Signature Series Professional Monitor Earphones with Two-Way Dual Armature Drivers
Music Will Never Sound the Same: Westone UM PRO 20
The WESTONE UM Pro 20 In-ear Monitors are a professional tool packed with features that help you bring down the house every time you get on stage. The dual driver balanced armature design has the range and raw output for any stage condition. Individually hand-crafted in the USA, the UM Pro 20 is comfortable and secure with Up and Over cable routing that helps prevent microphonics and keeps your earphone securely in place.
The WESTONE UM Pro 20 In-Ear Monitors feature Dual Knowles Balanced-Armature Drivers with a proprietary WESTONE sound signature EQd to perfection. These are the exact same drivers used in WESATONE's Elite Series (ES) Custom In-Ear Monitors. The enhanced Bass Boost gives them HUGE low-end punch on stage and in the studio. A Two-Way built-in passive crossover network that comes with the UM Pro 20 helps shape the sound in a way that takes listening to another level.
WESTONE's new removable, low-profile round connector makes cleaning a breeze. WESTONEs True-Fit Technology, Over-The-Ear design, and signature braided cable, provide a superior, comfortable fit. The included variety of Star Tips and Foam Tips make the UM Pro 20 ready for your ears out of the box. It doesnt matter if you play rock, metal, hip hop, house, or sacred music; the UM Pro 20 is the universal-fit professional choice for all musicians. And yes, its Made in the USA!.
- Wired Signature Series In-Ear Earbuds
- Dual balanced armature drivers
- Features the range and raw power for any stage condition
- Not sure what Balanced Armature Drivers are? Click here to read our Headphone Driver Type knowledge base article
- Up and Over™ cable routing
- Helps prevent microphonics
- Holds your earphones securely in place
- Patented STAR™ and True-Fit™ tips come in different sizes for added comfort
- Primary Color: Clear
- Accent Colors: Black
- UMPRO Series Designed for: Musicians
- Also Available in These Colors:
- Signature Series Ear Buds with a High Performance Single Driver (Blue)
- Signature Series Ear Buds with a High Performance Single Driver (Clear)
- Signature Series Ear Buds with a High Performance Single Driver (Red)
- Signature Series Ear Buds with Three-Way Triple Armature Drivers (Clear)
- Signature Series Ear Buds with Three-Way Triple Armature Drivers (Smoke)
- Signature Series Ear Buds with Five-Way 5 Armature Drivers
- Authorized Internet Dealer
- 2 Year Manufacturer's Warranty
- Frequency Response: 20-18,000 Hz
- Sensitivity: 119dB
- Nominal Impedance: 27 Ohms
- Passive Noise Attenuation: 25dB
- Detachable: Yes
- Cord Length: 50" (1.3m)
- Plug Size: 3.5mm
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.
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.
This is the application that the headphones are designed for. Each application has unique features that make it perfect for particular uses.
DJ: These headphones are durable, loud, and will often allow for one ear listening.
Gaming Delivers explosive sound and allows you to communicate with others.
Home Hi-Fi: These audiophile headphones are engineered to produce high fidelity and accurate audio.
Home/Office: These headphones are designed to produce rich, brilliant sounds that the artists would appreciate.
Sports: Designed for active use. These headphones are made to stay in (or on) the ear during workouts.
Kids: Feature noise limiting technology so that your little ones don't damage their ears listening to music too loud.
On-the-Go: On-the-go headphones are lightweight and often fold up for easy storage and portability.
Student: Compact and rugged enough to survive life in a backpack; inexpensive enough to not hurt the wallet of a student.
Studio: Reproduce music perfectly without any coloration. Look here for reference quality studio monitoring headphones.
Traveler/Airplane: These headphones are compact, lightweight, and have a portable design.
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.
Corded means that the headphones use a cord to transfer the audio signal.
Bluetooth means that the audio signal is transmitted from your device to the headphones via a Bluetooth connection.
Corded or Bluetooth means that the headphones can be used as corded headphones or as Bluetooth headphones. They have an input in one or both earcups for use as a corded headphone while they also have a built-in battery for use as Bluetooth wireless headphones.
Wireless means that the audio signal is transmitted wirelessly to the headphones.
The Jack Angle refers to the angle of the input jack on the headphone cable.
Straight Jack: Straight plug with no angle.
Angled Jack: Angled plug, usually a 90 degree angle.
Swivel Jack: A swivel jack is able to swivel between a straight plug and an angled plug.
The physical design of the driver in the headphones.
A balanced armature driver uses a coil wrapped around an armature which is held in between two magnets until it is stimulated by an electrical current. When stimulated, this armature is magnetized which causes it to rotate one way or the other around a pivot point which moves the diaphragm to create sound. Balanced armature driver headphones are generally earbuds and can have multiple drivers in each earbud.
Dynamic drivers are the most common driver type. They feature a permanent magnet, usually neodymium, a voice coil and a conical diaphragm to drive your music. A dynamic headphone driver looks pretty much identical to any typical home theater speaker.
Electrostatic drivers are made up of an extremely thin membrane, usually a coated PET film, stretched between two metal plates. An electrical signal is applied to the metal plates to create an electrical field which, depending on its polarity, draws the speaker diaphragm toward one of the plates which forces air through the perforations in the diaphragm which generates the sound wave.
A planar magnetic driver is made up of a large membrane suspended between two sets of oppositely aligned magnets. An electric charge is applied to the membrane to induce movement and produce sound waves.
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".
What is in the Box?
Warranty and Return Policy
Summary of Customer Ratings & Reviews
December 11, 2014
27 of 32 found this helpful
Cooper City, FL
November 19, 2016
These monitors sound great , nice bass response and clarity. Definitely a step up from my Etymotic research headphones I was using. I would recommend these in ear monitors to others, the only problem I have with them is the cost but I did get a good deal here at sonic electronix!
0 of 0 found this helpful
San Antonio TX
February 22, 2016
Sounds great, fits really well. Why spend the extra time & money for a custom fit?
0 of 0 found this helpful
UM Pro 20
Internal Product ID
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.