Scan code: LN118928 Manufacturer code: 215-EX-1121-00

Audeze - CRBN Electrostatic Headphones

Audeze - CRBN Electrostatic Headphones, Suspended Carbon Nanotube Diaphragms, Compatible with all 580 volt amps

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Scan code: LN118928 Manufacturer code: 215-EX-1121-00
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Electrostatic Headphone
Audeze - CRBN

Audeze - CRBN

Groundbreaking Audeze Electrostatic headphones
with Carbon Nano tubes!
Over the years Audeze, whose R&D and manufacturing center is based in Orange County, CA, has developed award-winning Planar headphones coveted highly by musicians, sound engineers, and audiophiles for their high quality sound. Audeze is launching a new series of Electrostatic headphones called CRBN.

Prof. Mark S. Cohen Ph.D., UCLA Depts of Psychiatry, Neurology Radiology, Psychology, Biomedical Physics and BioEngineering, is a pioneer in the field of magnetic resonance imaging (MRI) and neuroscience. He is also the Co-Founder and Chief Scientist at SMRT Image where he is helping to solve some of the most challenging patient comfort problems with MRI.

Working with Dr. Cohen and his team at SMRT Image, Audeze helped develop new headphones that alleviate many of the acoustic issues associated with MRI testing.

'THE problem''Patient anxiety and discomfort due to noise and claustrophobia are significant challenges in MRI. In such exams, when patients do not remain still, motion artifacts often degrade the images and can even make the scans unusable for diagnostic purposes. Stress and anxiety can cause patients to abort a scan, or to refuse studies altogether. MRI machines are extremely loud: their sound pressure levels can exceed 120 dB, similar to a jack hammer a few feet away.

MRI machines are by nature an exceptionally hostile environment for any electronics. They require enormous magnetic and electrical fields to make their medical images. Further, MRI scans are highly sensitive to electrical noise, which can compromise image quality. Because of this, any headphones used inside the scanners must be devoid of any ferrous materials. Moreover, eddy currents can also be induced in metal parts, creating image quality problems.

100 pFElectrostatic Capacitance

20Hz - 40kHzFrequency Response

>120dBMax SPL

CRBN features • Light weight, slim-fit design
• Push to chat for patient communication
• Compatible with nearly all head-coil systems
• Maximum comfort for improved patient experience
• 30 NRR noise cancellation

CRBN Headphones

Audeze - CRBN

patented thin-film diaphragmAudeze created a new transducer technology, from the ground up, to eliminate the problems with use in MRI. Starting with a patented thin-film diaphragm with embedded Carbon Nanotubes that provide an ideal environment for electrostatic charge, the headphones use electrostatic force to create sound.

This design solves many of the inherent issues with coated diaphragms that have been used in previous electrostatic speaker designs over the last century.

Coping with the Noise Acoustic noise cancellation (ANC) works by creating a signal that is opposite to the noise signal. To cancel the extremely high levels of noise in the MRI units, Audeze team created very high SPL transducers that are also very accurate; a critical requirement for effective ANC.

User-Centric Design

Audeze - CRBN

compatible with the majority of scanners and examsThe SMRTImage team worked with a variety of MRI labs to refine the design of the headphones to be compatible with the majority of scanners and exams - usable with body coils, surface coils, and some head coils. The Audeze/SMRT over-the-ear models provide state-of-the-art passive and active noise reduction techniques. Audeze's new CRBN films are very versatile, and can be used to create transducers of different sizes including smaller headphones that fit smaller heads of pediatric patients.

“CRBN headphones was a chance for us to make headphones that have a purpose and measurable social impact” says Audeze CEO Sankar Thiagasamudram.

'comforting and distracting'The CRBN headphones are integrated into the Lumica AV system from SMRTImage that provides images and movies in addition to audio and communication options, resulting in a fully-immersive audiovisual experience that is both comforting and distracting for the anxious MRI patient.

“What we set out to do at SMRT was create a tranquil patient experience within a very hostile environment,” says Tylor Garland, CEO of SMRT Image. “Our ability to produce a hi-fi AV product that is MR compatible, and which a patient can comfortably wear over the course of a long scan in a confined environment, was very tricky. We were lucky to find Audeze to help us with our solution,” he added.

A recent study, reported by Dr. Lawrence Tanenbaum of RadNet, has demonstrated the effectiveness. In a controlled survey study of 295 imaging subjects, using scanners from both Siemens and General Electric, patients reported significant improvements in their Comfort, Anxiety, and overall experience. Remarkably, when using the Lumica AV System, these same patients even reported decreases in the perceived exam duration.

Breakthrough Solutions for Neuroscience &
Advanced MRI Headphone Applications

Audeze - CRBN Headphones

The Tech Spec

Features Specification
Style Open-back circumaural
Transducer Type Push-pull electrostatic
Functional Bias Voltage 580 VDC
Electrostatic Capacitance 100 pF (including cable)
Diaphragm Type Ultra-thin custom E42 carbon nanotube
Transducer Size 120mm x 90mm
Frequency Response 20Hz - 40kHz
Maximum SPL >120dB
Wired Connection 2.5 meter 5-pin Pro Bias
Housing Magnesium, stainless steel, carbon fiber
Earpad Material Premium leather
Headband Carbon fiber and premium leather
Weight 300g
Headphone Type Open Back
Style Over Ear
Driver Type Electrostatic
Headphone Connector Type Electrostatic - 5 Pin XLR
Includes Adaptor No
Impedance n/a Ohm
In-line Mic No
Detachable Cable Yes
Cable Length 2.5 m
Weight 300 g
Sensitivity None
Additional Information
Scan Code LN118928
Model Number 215-EX-1121-00
GTIN 819343014052

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36 months
Return to base
DOA Period:
28 days
RTB Period:
36 months
Manufacturer Contact Details
0871 472 4747
Audeze - CRBN Electrostatic Headphones
Audeze - CRBN Electrostatic Headphones