speakers magnets
How do speakers work in an MRI machine?
How do speakers work in an MRI machine? The MRI is basically a giant magnet, so wouldn’t that pull so hard on the voice coil that it wouldn’t be able to push back to create sound?
The speaker may use an electrostatic field rather than an electromagnetic field to move the diaphragm.
Speaker Magnet Size
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Boss 6.5 2-Way Waketower Marine Speaker – Model MRWT65 Speakers Mobile $55.16 200-watt max power handling 40 oz. magnet structure4-ohm impedanceFrequency response: 80Hz-20kHz 90dB SPL 1-watt and 1-meterPoly injection cone material1″ aluminum voice coil1″ mylar dome tweeterPlastic grilles… |
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Excalibur 4 X 6 Oval Oem Replacement Speaker With Air Suspension Cone – 7oz. Magnet 4 x 6 Oval Speaker with 7oz. Magnet and Air Suspension Cone. Mobile Audio Hardware. Speakers (OEM Replacement)… |
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On-Ear Communication Headset with 9mm Cobalt Magnets – Silver $13.30 Communication Headset – Silver9mm driver unit provides detail & tonally balancedsoundEasy to clean detachablesilicone ear cushionsFlexible ear cushions fita variety of ear sizesDurable & light weight surfaceClear dynamic soundwith enhanced bass responseOn-Ear Communication Headset with 9mm Cobalt Magnets – SilverDriver unit:9mm Cobalt magnetImpedance:16 OhmSensitivity:106 dB +/- 3dBFrequency respo… |
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Sangean WR-2 Digital AM/FM Tabletop Radio, Walnut $115.51 The Sangean WR2 brings distant AM and FM stations to your door step through Sangean’s advanced RF/IF electronic circuitry. The wood enclosure is acoustically balanced and the enhanced frequency response, front firing speaker provides rich, room filling sound. The acoustic bass compensation and 7 watt amplifier give this small radio a truly big sound. (Stereo FM is fed to the earphone jack). Advanc… |
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Sangean WR-2 Digital AM/FM Tabletop Radio, Black $117.50 Boasting an acoustically balanced wooden enclosure and an enhanced front-firing 3-inch speaker, the Sangean WR-2 tabletop radio offers the sound and features of a living room system in a cabinet that fits conveniently in a bedroom, kitchen, or garage. Any discussion of the WR-2 begins with its black wooden housing, which is rich in both appearance and tone. The cabinet’s front surface features the… |
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Lowrider – Chrome Blue $29.99 Ian said it best: Sometimes, good guys don’t wear white. We designed more than a dozen colors of Lowrider – in addition to white – to avoid even the appearance of evil. So be good. Hang on. Get LOW…. |
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Great Buy! Power Acoustk KP-69 6?x9? 3 way speakers, 360 watts, 25 oz magnet, Butyl Rubber Surround $23.78 Imp: 4 ohm Injection molded cone Butyl rubber surround 6″ x 9″ 3-way 360W 25-oz magnet Freq resp: 60 Hz – 20 kHz 92 dB efficiency Top mounting depth: 3″ Bottom mounting depth: 3.5″ Cutout dim: 6″ x 8.75″ Overall dim: 6.5″ x 9.25″… |
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Power Acoustik KP-694N KP Series 6-Inch X 9-Inch 380-Watt 4-Way Full Range Speakers $21.30 POWER ACOUSTIK KP-694N KP SERIES FULL RANGE SPEAKERS (380-WATT, 4-WAY, 6″ X 9″) 6″ X 9″; 4-WAY; 380W; 40-OZ MAGNET; 1.5″ VOICE COIL; FREQ RESP: 50 HZ20 KHZ; SPL: 92 DB; MOUNTING DEPTH: 3.4″; POLYMIDE MIDRANGE; SUPERIOR DOME TWEETER; PIEZO TWEETER; IMP: 4?; POLY-INJECTED CONE; BUTYL RUBBER SURROUND KP SERIES FULL RANGE SPEAKERS (380-WATT, 4-WAY, 6″ X 9″)… |
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PYLE PLSQ10D 10-Inch 1200 Watt Square DVC Subwoofer $49.95 PRODUCT FEATURES: Silver Special Treated Polypropylene Cone; Wide Rubber Surround; Black Square Steel Basket; 4 Ohm Impedance; 70 + 70 oz. Magnet Structure…. |
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What is a magnet?: By gabriel H. Reuben and Gloria Archer (The What is it series) … |
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Boss 6.5 2-Way Waketower Marine Speaker – Model MRWT65 Speakers Mobile $55.16 200-watt max power handling 40 oz. magnet structure4-ohm impedanceFrequency response: 80Hz-20kHz 90dB SPL 1-watt and 1-meterPoly injection cone material1″ aluminum voice coil1″ mylar dome tweeterPlastic grilles… |
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On-Ear Communication Headset with 9mm Cobalt Magnets – Silver $13.30 Communication Headset – Silver9mm driver unit provides detail & tonally balancedsoundEasy to clean detachablesilicone ear cushionsFlexible ear cushions fita variety of ear sizesDurable & light weight surfaceClear dynamic soundwith enhanced bass responseOn-Ear Communication Headset with 9mm Cobalt Magnets – SilverDriver unit:9mm Cobalt magnetImpedance:16 OhmSensitivity:106 dB +/- 3dBFrequency respo… |
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Sangean WR-2 Digital AM/FM Tabletop Radio, Walnut $115.51 Boasting an acoustically balanced wooden enclosure and an enhanced front-firing 3-inch speaker, the Sangean WR-2 tabletop radio offers the sound and features of a living room system in a cabinet that fits conveniently in a bedroom, kitchen, or garage. Any discussion of the WR-2 begins with its walnut-finished wooden housing, which is rich in both appearance and tone. The cabinet’s front surface fe… |
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Sangean WR-2 Digital AM/FM Tabletop Radio, Black $117.50 The Sangean WR2 brings distant AM and FM stations to your door step through Sangean’s advanced RF/IF electronic circuitry. The wood enclosure is acoustically balanced and the enhanced frequency response, front firing speaker provides rich, room filling sound. The acoustic bass compensation and 7 watt amplifier give this small radio a truly big sound. (Stereo FM is fed to the earphone jack). Advanc… |
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Lowrider – Chrome Blue $29.99 Ian said it best: Sometimes, good guys don’t wear white. We designed more than a dozen colors of Lowrider – in addition to white – to avoid even the appearance of evil. So be good. Hang on. Get LOW…. |
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Great Buy! Power Acoustk KP-69 6?x9? 3 way speakers, 360 watts, 25 oz magnet, Butyl Rubber Surround $23.78 Imp: 4 ohm Injection molded cone Butyl rubber surround 6″ x 9″ 3-way 360W 25-oz magnet Freq resp: 60 Hz – 20 kHz 92 dB efficiency Top mounting depth: 3″ Bottom mounting depth: 3.5″ Cutout dim: 6″ x 8.75″ Overall dim: 6.5″ x 9.25″… |
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Power Acoustik KP-694N KP Series 6-Inch X 9-Inch 380-Watt 4-Way Full Range Speakers $21.30 POWER ACOUSTIK KP-694N KP SERIES FULL RANGE SPEAKERS (380-WATT, 4-WAY, 6″ X 9″) 6″ X 9″; 4-WAY; 380W; 40-OZ MAGNET; 1.5″ VOICE COIL; FREQ RESP: 50 HZ20 KHZ; SPL: 92 DB; MOUNTING DEPTH: 3.4″; POLYMIDE MIDRANGE; SUPERIOR DOME TWEETER; PIEZO TWEETER; IMP: 4?; POLY-INJECTED CONE; BUTYL RUBBER SURROUND KP SERIES FULL RANGE SPEAKERS (380-WATT, 4-WAY, 6″ X 9″)… |
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PYLE PLSQ10D 10-Inch 1200 Watt Square DVC Subwoofer $49.95 PRODUCT FEATURES: Silver Special Treated Polypropylene Cone; Wide Rubber Surround; Black Square Steel Basket; 4 Ohm Impedance; 70 + 70 oz. Magnet Structure…. |
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