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HiVi TN28 Fabric Dome Tweeter

HiVi TN28 Fabric Dome Tweeter

Brand:| Model: TN28
This HiVi TN28 Fabric Dome Tweeter has very smooth on and off axis frequency response delivering excellent acoustic power dispersion. Its minimum diffraction, versatile-mounting design makes it perfect for speaker building projects.
  • Hand treated fabric dome
  • Shielded, double neodymium magnet
  • Large non-resonant rear acoustic chamber
  • Ferrofluid cooling in the magnetic gap
Part # 
Weight: 0.4 lbs.  
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Product Details

HiVi TN28 Fabric Dome Tweeter

HiVi's minimum diffraction versatile-mounting design and hand treated fabric dome gives this tweeter very smooth on and off axis frequency response delivering excellent acoustic power dispersion. A Ferrofluid cooled 28 mm voice coil keeps it running cool when you're really giving it a workout. Shielded, vented double magnet system with two Neodymium rings and large non-resonant rear acoustic chamber give this dome tweeter its famous looks and acoustic qualities.

Specifications: • Power handling: 40 watts RMS/100 watts max • VCdia: 1-1/8" • Nominal impedance: 6 ohms • DC resistance: 5.1 ohms • Frequency range: 2,000-20,000 Hz • Fs: 1,600 Hz • SPL: 88 dB 2.83v/1m • Net Weight: 1/3 lb. • Dimensions: 1-7/8" diameter x 3-1/4" long.

Product Specifications
  • Tweeter TypeSoft Dome
  • Cone / Dome Diameter1-1/8"
  • Impedance6 ohms
  • Power Handling (RMS)40 Watts
HiVi TN28 Fabric Dome Tweeter
  • BrandHi-Vi
  • ModelTN28
  • Part Number297-409
  • UPC844632021800
  • Product CategoryTweeters
  • Unit of MeasureEA
  • Product Rating
    (26 Reviews)
  • Weight0.4 lbs.
  • California Prop 65

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

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HiVi TN28 Fabric Dome Tweeter
HiVi TN28 Fabric Dome Tweeter is rated 4.3077 out of 5 by 26.
Rated 5 out of 5 by from Wow! Awesome!! Great looking smooth sounding tweeters!I am professional audio engineer and have speakers costing thousands of dollars in my recording studio.(Tannoy ,KRK, Yamaha etc etc.... But-I love building speakers! When it comes to component tweeters, I have thousand dollar electrostatic ribbons,(4ft carvers x4) & some of 'super tweeters' to build into projects. My recent project was an upward firing single stereo enclosure for my daughter. It's a futuristic design and although I have forward firing midrange speakers I wanted to do something special with the tweeters. The HiVi TN28 Fabric Dome Tweeters looked great as they are external, and futuristic looking. I ordered a pair and was BLOWN AWAY by the smooth sound! As soon as I had tested them, I immediately (withinminutes!) ordered another pair for myself!!!All the parts for the project (apart from the enclosure) came from parts express (Woofer, tweeters, mids, hardware, & connectors)I really can't say enough about your great products & prices, & will continue to order regularly! Thanks again! Patrick Baker
Date published: 2013-09-19
Rated 4 out of 5 by from works for meI put together some tiny bookshelfs based off the Dayton Audio RS100 for my computer. The Daytons were severely lacking in the treble. The cabinets were already complete so the TN28 top mount tweet was the perfect option. Crossed at 5khz, these tweeters sound pretty good and work great for near field listening at the computer.
Date published: 2013-09-17
Rated 5 out of 5 by from Great tweeter to add to dull/dark speakers.I ordered a pair of these to use in a new build but ended up using them atop an old dark sounding pair of 2 way Awias. For my room which is treated, they really brought them to life. Great dispersion as well. I crossed them at 1800 3rd order.
Date published: 2013-02-10
Rated 5 out of 5 by from Very Nice Tweeter for Specialized ApplicationsThe Hi Vi TN28 is indeed very nice tweeter for outboard mounting applications. The most difficult aspect of dealing with this tweeter is mounting and positioning. Let me give you a few hints…If you look carefully at the bottom of the tweeter you will see that the bodies of the driver mounts to the base with a keystone dovetail. By placing a knife or other thin object between the body and the base you can carefully push the base backwards. Please note that the glue used to keep the leads in a small channel can sometimes transfer to the based making this a little difficult.Once removed, the base can be mounted to your main enclosure. The mounting holes are ¾” apart on center. I discovered a nifty trick to make mounting quite easy. The holes are sized appropriately for a #8X32 tap. Since the plastic is relatively soft no pre drilling is necessary. My only other suggestion is to make the holes in the speaker enclosure a little larger than the #8 bolt you will use so that it provides enough wiggle room to align the TN28 perfectly perpendicular to the enclosure edge. ¼” or slightly less extending above the enclosure is just right.Take care when placing the TN28 on the base by drawing up the leads from inside the enclosure as you push it back not to crimp the leads. For time alignment purposes termination of the voice coil at the dome end is roughly at the midpoint of the gold trim ring (1/4”). By positioning this directly in line (horizontally) with the voice coil/cone union of your other drivers you will achieve perfect time alignment.Other nice features are the relative low SPL (compared to most tweeters) making it an ideal match for small or moderately efficient drivers. Its response curve is relatively flat with only a >3db rise between 7-10K and 16-19K which probably does not need to be EQed in most cases due to HF hearing loss for most adults. Power handling is adequate for typical systems thanks to ferrofluid cooling.
Date published: 2013-11-12
Rated 4 out of 5 by from Very good for the priceFairly clear highs for its price range; you should spend three times its cost (perhaps more) to outperform this guy.
Date published: 2011-02-17
Rated 5 out of 5 by from Excellent external tweeterI had a special application for replacing two tweeters on my left and right channel speakers on my 5.1 surround. They originally had 360 degree tweeters that were built on top of the cabinet! These new ones were perfect. The low end comes out very realistically and are very smooth on the high end. There decorative, but I used the original grill top. They create excellent imagery.
Date published: 2011-02-17

Product Q&A

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HiVi TN28 Fabric Dome Tweeter

how do I connect these to my speakers?

to add these to a pair of basic bookshelf speakers, do just connect to back of each speaker -positive to positive and negative to negative?or do I need to add crossovers. keep in mind the speakers are only be used for low background music, not too loud.
Asked by: Rmellen
These will be wired in parallel with the existing speakers however there will have to be a crossover in between them. Something like the 266-474 would be a good choice.
Answered by: MattP
Date published: 2012-10-22

what's a simple crossover for this at about 2500K ??

I'd like to add a pair to a Tivoli 2 radio, with a CDP ...and have a sub...this is for my office ... don't want to "rock the house" but would like to jazz it up a bit.
Asked by: brashgordon1
A simple second order filter would consist of a 7.5uF capacitor in series, and a 0.55mH inductor in parallel with the tweeter. I've linked two appropriate products below for your convenience.
Answered by: RussR
Date published: 2013-03-24

How are these tweeters installed

I have a pair of bookshelf speakers for an HD radio and need to add more highs. How are the hivi tn28 installed. Or what else do I need?
Asked by: Rmellen
These come with a small slide on bracket that is mounted to the enclosure via adhesive or small screws. The tweeter slides onto this.
Answered by: MattP
Date published: 2013-03-24

The swans web site shows two versions of this tweeter, the TN28 and the TN28-4. What version of the tweeter is this and what is the differance?

Asked by: Rtg97229
This is a standard TN28 model which is 6 ohms. I do not see anything regarding a TN28-4 however this usually means it is a 4 ohm version of the other model.
Answered by: MattP
Date published: 2012-12-26

Hello, I would like to use this tweeter with a 3 way 6db x-over . My question is that this tweeter is listed as 6 ohms and the x-over is for 8 ohms @ 4000. How will this affect the x-over point ? All of the other drivers are 8 ohms. Thanks Bob

Asked by: hifibob
A 6 ohm tweeter on an 8 ohm crossover will slightly raise the crossover point, in this case to about 5kHz. This tweeter is not recommended to be crossed lower than 4 kHz with a second order, so a first order really needs to be double that to be safe.
Answered by: MattP
Date published: 2013-12-30

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