Questions about BOLDfonic?
BOLDfonic delivers high-fidelity acoustic stimuli for fMRI while also attenuating scanner noise. Our electro-dynamic driver technology uses the magnetic field of the MRI scanner to drive the headphone membranes. This results in powerful speakers with an excellent frequency response across a wide dynamic range. A novel USB sound processor with automated synchronous triggering capabilities and a fully–loaded amplifier system provide all the controls you need for rigorous multimodal EEG/fMRI studies.
Guide price includes a desktop microphone and speakers, plus one pair of headphones and the earbuds. Many options are available, so please contact us for more details.
Guide Price: £7250
A range of headphones to suit any MRI system
The circumaural, closed-back headphone is available in a number of sizes and cable routing arrangements to suit different headcoil designs (please refer to the table below). It offers superior gradient noise dampening compared to simple pneumatic, air tube solutions. Where space permits, soft, memory foam cushions can also be inserted between the head and contact points of the coil to provide even better isolation, reduce bone conduction and improve patient comfort.
A unique electro-dynamic driver uses the magnetic field of the MRI scanner to drive the headphone membrane. This results in powerful speakers with an excellent frequency response across a wide range. An additional piezoelectric driver can be fitted to some designs, which enables those headphones to be used outside the bore too.
A design for any headcoil
Headphones are available in a number of sizes and cable routing arrangements to suit different headcoil designs.
When there is insufficient space for headphones, an earbud-style earphone option can be used. This simple and effective solution places the headphone driver unit just outside the coil, and delivers the audio to the ear via a very short airtube and passive earbud, maintaining the best possible sound quality.
|HP SI 01||Standard headphone with excellent passive gradient noise dampening and powerful electrodynamic speaker system.||32mm thick. Dimensions: outer 85x105mm, inner 45x65mm.||Available for Philips and GE scanners. Compatible with 8 and 12 channel head coils.|
|HP SC 01||Special version of HP SI 01 with additional compensation element optimized for use with Siemens scanners.||32mm thick||For Siemens scanners and larger volume head coils (i.e. not 32/64 channel).|
|HP SC 02||Same features as HP SC 01, but 6mm slimmer and with special foam cushion set.||26mm thick||Compatible with Siemens 8 and 12 channel head coils.|
|HP SIE 01||Special version of HP SI 01 with additional piezo drivers. Can be used inside or outside the scanner.||32mm thick||Available for Philips and GE scanners.|
|HP VS 01||Smaller version of HP SI 01.||20mm thick||Optimised for Philips and GE 32-channel head coils. Also for use with 8 channel head coil and thick foam cushion.|
|HP VS 02||Very small version of HP SI 01 with tilted cable management.||14mm thick||Optimised for Philips and GE head & neck coils.|
|HP PI US||Ultra small on-ear piezo headphone for use in modern multi-channel head coils with a diameter down to 190mm. Also consider alternate HP AT 01 insert earphone (earbub) design.||Dimensions: outer 80x105mm, inner 45x70mm.||Works with any head coil. Works inside and outside the scanner.|
|HP M 01||Same electrodynamic driver system as of HP SI 01 or HP SC 01. Small headphones, optimized for use with children and NHP. Special version for pure passive dampening or matched, non MRI-compatible (MR Unsafe) headphones are available.||Dimensions: outer 60mm, inner 25mm.||Available for Siemens, Philips and GE scanners.|