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Ferro Fluid Kits
Ferrofluid 650uL General Purpose for 2" Diameter Coil
Ferrofluid Repair Kit
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Ferrofluid 650uL General Purpose for 2" Diameter Coil
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Part Number:
MI-FF650
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Ferrofluid Repair Kit, 650uL for 2" Diameter Voice Coil Part # MI-FF650
Ferrofluid Repair Kit
650uL for 2" voice coil
Reduces distortion
Increases power handling
Comes complete with cleaning strips and instructions
For most compression drivers, repairs, and diaphragm assemblies
SDS
Our ferrofluid kits come with pre-measured packets of ferrofluid which are used to replace the old fluid in speaker air gaps when replacing diaphragm and coil assemblies.
Ferrofluid improves the performance of high frequency and midrange drivers. It works by damping the impedance at resonance to effectively lower distortion, smooth frequency response, and increase thermal power handling.
Ferrofluid improves the performance of high frequency and midrange drivers. It works by damping the impedance at resonance to effectively lower distortion, smooth frequency response, and increase thermal power handling. It should be used to replenish drivers treated previously with ferrofluid. With care, it can also upgrade most drivers that have never contained ferrofluid. The kits listed are approximate fill quantities relative to approximate voice coil diameters. In general, the air gap should be 75% filled prior to inserting a voice coil diaphragm assembly. The kit contains synthetic ester-based ferrofluids and in most cases should not pose any adhesive incompatibility. It is recommended that this is confirmed by contacting the driver manufacturer prior to usage. Adding ferrofluid to a driver not intended for it will, in most cases, void the original manufacturer's warranty. Included in kit: A ferrofluid packet, absorbent paper strips for removing old ferrofluid, detailed instructions, and material safety data sheet.
Specifications and Physical Properties
Appearance
black-brown or red-brown viscous fluid
Carrier Liquid
synthetic ester oil
CGS Units
SI Units
Saturation Magnetization (Ms)
220 Gauss
22 mT
Viscosity @27°C
200 cP
200 mPa·s
Density @25°C
1.16 g/cc
1.16 10
3
kg/m
3
Pour Point
-35 °C
-35 °C
Flash Point
>200 °C
>200 °C
Thermal Conductivity @38°C
150 mW/(m·K)
150 mW/(m·K)
Surface Tension @25°C
32 dynes/cm
32 mN/m
Coefficient of Thermal Expansion
7.5 x 10
-4
ml/ml°C
7.5 x 10
-4
/K
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Mr.
Just as described. Worked great!
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2 of 3
Found Helpful
Reviewed by:
Monte Starling
from Louisville, KY on 9/4/2014
5
Q:
hai.I have JBL Srx 715.712.about 8 years .Is it necessary to refill or change Ferrofluid in high frequency drivers? thanks .
Asked by:
Edijs
- 2/5/2016
A:
If the old fluid has been contaminated, then it is time to replace it. If the diaphragm voice coil is burnt, or the diaphragm has shattered, then you need to replace the fluid.
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Answer provided by:
Simply Speakers (2/7/2016)
Questions about this item? Ask here.
UPC:
700621989165
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