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Ferrofluid 650uL General Purpose for 2" Diameter V.C.

Overview
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.
Highlights
  • Great for retrofit/replacement or new applications
  • Damps impedance at resonance
  • Reduces distortion
  • Conducts heat away from voice coil
  • Increases power handling capacity
  • Comes complete with cleaning strips and instructions
  • Sized to fit approximate voice coil diameters
Part # 
340-544
Weight: 0.1 lbs.  
IN STOCK
List Price$13.99
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Part # 340-544
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Product Details

Ferrofluid 650uL General Purpose for 2" Diameter V.C.

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.



Product Specifications
  • TypeFerrofluid
Ferrofluid 650uL General Purpose for 2" Diameter V.C.
  • BrandFerrotec Corp USA
  • Part Number340-544
  • UPC844632086311
  • Product CategoryReplacement Diaphragms & Baskets
  • Unit of MeasureEA
  • Product Rating
    (2 Reviews)
  • Weight0.1 lbs.
  • California Prop 65

    Warning: California residents only. Please note per Proposition 65 that this product contains chemicals known to the State of California to cause cancer and birth defects or other reproductive harm.

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in the Replacement Diaphragms & Baskets product category.

Reviews

Ferrofluid 650uL General Purpose for 2" Diameter V.C.
Ferrofluid 650uL General Purpose for 2" Diameter V.C. is rated 4.5 out of 5 by 2.
Rated 5 out of 5 by from EEEK!Like a little school girl i eeked when i saw the package at my door. For i knew within an hour my subwoofer could handle another 100 watts E.Z. I modified the amplifier of a Yamaha YST-SW160 to output 300 watts including cabinet mods new torridial transformer and feedback gain as well as sense resistor modifications. OH GLORY! IS THIS BASS GOOD. Only with fluid cooling could I apply this much power to these speakers. after a few hours it became apparent i needed to parallel the output transistors.
Date published: 2013-05-06
Rated 4 out of 5 by from it probably works - appears to be magnetic at leastEasy enough to use. How good is it? I don't know. But replacing your ferrofluid with something rather than nothing will probably help keep a driver from failing due to overheating. At this price it probably can't hurt. I have no idea how long this fluid will last (before it dries up or leaks out). On the plus side, the kit comes with blotting paper to soak up the remnants of old fluid in that hard-to-get-to voice coil gap. I have no reason NOT to recommend this replacement fluid. Mine came with an MSDS sheet by FerroTec listing (by volume): magnetite 4-6% dispersant 16-20% carrier 73-80% aromatic amine 0-1%.
Date published: 2013-03-23

Product Q&A

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If your question requires design or troubleshooting information,
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Ferrofluid 650uL General Purpose for 2" Diameter V.C.

which viscosity [cp] does the fluid have?

Asked by: Volker
This products cP rating is 200.
Answered by: MattP
Date published: 2013-10-21

Ferrofluid quality questions

Ferrofluid quality questions.Ferrofluid are sold in 300ul 650ul 900ulAll amounts are different, the contents of the same?Or differently depending on the type of speakers used?Thank you
Asked by: penanea
The fluid used is the same, the only difference is the quantity.
Answered by: MattP
Date published: 2012-10-12

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