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The high-quality headphones, together with the user-friendly communication console, give both research and clinical users versatile control over auditory stimulus presentation.
Headphones
With state-of-the-art electrostatic transducers, the headphones give a superbly detailed sound, replicating even minute details with incredible precision. Designed specifically for fMRI, the headphones offer flexible solutions for patient hearing protection, as well as for patient communication.
Using the best quality components to ensure high performance, the system offers a flat frequency response from 8Hz to 35kHz and a noise attenuation of +30dB.
EarPlug
NordicNeuroLab’s EarPlug is an alternative devise to the NNL Headphones to deliver audio stimuli within the MR environment. Its main objective is to deal with the restricted space requirements in new type of head coils. It is based on electrostatic technology, as this proved to be superior in sound quality compared to pneumatic systems.
The EarPlug is an add-on to the NNL AudioSystem and uses the same amplifier and signal transmission. The EarPlug can be used instead of the Headphones, as they share the same connector and signal type. The Earplug is compatible in 1.5T, 3.0T, and 7T MR environments.
At this time the EarPlug is only to be used in a research environment.
Communication Console
With easy and accessible controls, the communication console allows two-way simultaneous patient communication and full flexibility of audio settings.
As an alternative to the built-in microphone and speaker, the technician can choose between different headsets according to individual preferences. The console also allows for recording of oral responses from the patient using a fiber-optic patient microphone, which is available as optional add-on feature.
- Features
- Technical Specifications
- AudioSystem in Use
- Data Sheet & Catalog
Headphones
- easy setup and operation
- superior hearing protection (+30dB)
- disposable sanitary covers available
EarPlug
- small profile for tight fitting coils
- easy setup and operation
- Different size disposable MR compatable ear tips
Communication Console
- two stereo channels
- two-way simultaneous communication
- easy operation of patient audio level
- momentary speak button
- internal operator microphone and speaker
- operator headset as additional option
Headphones
earcup dimensions (W x H x L)
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semi-elliptical shape 85 x 45 x 105 mm
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transducers
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high-precision electrostatics
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flat frequency response
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8Hz - 35 kHz
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passive noise attenuation
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+30 dB
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fixation
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extendable, non-magnetic headband with adjusting, pivoting yokes
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EarPlug
dimensions
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29 mm diameter
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weight
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12 g without cord
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speakers type
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Electrostatic Canal Type, In-The-Earspeakers/ Pushpull Driving
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| sound attenuation |
Approach 30dB LCeq (C-weighted equivalent) with HATS (Head and Torso Simulator) |
bias voltage
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580V/DV
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Communication Console
dimensions (W x H x L)
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135 x 55 x 140 mm
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connection
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can be connected to all standard audio sources
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signal transfer options
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fiber-optic cable through waveguide
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Click on the images to enlarge.
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