HiVi RT1C-A Planar Isodynamic Tweeter

HiVi RT1C-A Planar Isodynamic Tweeter

Brand:| Model: RT1C-A
The vibrating element of a planer tweeter is almost weightless in comparison to a dome tweeter. It provides an immediate and precise response to any transients in the original signal.
  • Kapton film diaphragm for immediate, precise response
  • Controlled vertical dispersion minimizes ceiling and floor bounce
  • Wide horizontal dispersion
Part # 
Weight: 0.56 lbs.  
List Price$111.99
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Your Price
Buy 4-11 $34.77
Buy 12-up$29.64
Part # 297-400
Qty:  EA
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Product Details

HiVi RT1C-A Planar Isodynamic Tweeter

The vibrating element of a planer tweeter is almost weightless in comparison to a dome tweeter. The element consists of Kapton film with a pattern of aluminum conductors which is placed precisely between two Neodymium bar magnets. It provides an immediate and precise response to any transients in the original signal. These drivers are magnetically shielded and feature a linear phase response which provides time coherent reproduction resulting in accurate musical rhythm and imaging. Unlike other conventional tweeters and electrostatic speakers, the RT1C and RT2a have an extremely wide sound dispersion in the horizontal plane. At the same time, they have a well controlled sound dispersion in the vertical plane. This helps to avoid disturbing floor and ceiling reflections in a home environment thus enhancing clarity and imaging accuracy. The RT1C features a radiating area of 50 x 13mm and a round cast aluminum face plate. Although designed to be used with either the F5 or F6 bass/midrange drivers in a small 2-way system, it is also well suited for 3-way applications. Recommended second order crossover cut-off frequency - from 3kHz.

Product Specifications
  • Tweeter TypePlanar
  • Impedance5 ohms
  • Power Handling (RMS)20 Watts
  • Frequency Response3,000 to 21,000 Hz
  • Sensitivity93 dB 1W/1m
Thiele-Small Parameters
  • DC Resistance (Re)4.80 ohms
Mounting Information
  • Overall Outside Diameter4.72"
  • Cutout Diameter3" W x 3.625"
  • Depth0.39"
HiVi RT1C-A Planar Isodynamic Tweeter
  • BrandHiVi
  • ModelRT1C-A
  • Part Number297-400
  • UPC844632021244
  • Product CategoryTweeters
  • Unit of MeasureEA
  • Product Rating
    (17 Reviews)
  • Weight0.56 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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HiVi RT1C-A Planar Isodynamic Tweeter
HiVi RT1C-A Planar Isodynamic Tweeter is rated 4.3529 out of 5 by 17.
Rated 5 out of 5 by from Highly RecommendedI am stunned that a tweeter at this price is able to deliver such high performance. Very smooth and extended response, especially for a tweeter. Best of all, impedance is virtually resistive.
Date published: 2009-10-20
Rated 4 out of 5 by from Good tweeterTried a pair of these crossed at 3500hz in small 2-way speakers. I really enjoy the sound of these tweeters. Clean and effortless sound. My only complaint is one had a resistance almost 1 ohm higher than the other, about a 20% difference. Since I am somewhat new to speaker building, maybe this is not uncommon, but I think it suggest quality control issues in manufacture. That is my only gripe, I will definitely use these again, I like them better than other tweeters I have used.
Date published: 2009-10-02
Rated 4 out of 5 by from Very Efficient and Un Congested, Airy SoundVery happy with these tweeters. They have low impedance and high sensitivity that mates well with most tube amps. They have a very airy sound that is never too harsh or too foward.
Date published: 2009-09-16
Rated 1 out of 5 by from Weak TweetsThis is my first experence with this type of speaker and was surprised that its output (sound level) is very very low; so low that I had to series resistors with the midrange (lowering its output/watt). I still think that this tweeter sounds "weak". I used the Dayton XO2W-3.5K 2-Way Crossover 3,500 Hz and the HiVi F6 6" Bass/Midrange with this tweeter.
Date published: 2009-06-16
Rated 5 out of 5 by from Great tweeter.I'd take this over a dome any day. Sound is smooth and clear. If you want something that will make your ears ring this probably isn't for you.
Date published: 2008-09-20
Rated 4 out of 5 by from One of the Best Tweeter for Design from 4kHZWe use this tweeter for more than 5 Years.Vera very good.I cant explain in english.But we dont know any tweeter like this for better price!
Date published: 2008-05-13
Rated 4 out of 5 by from Nice tweeter,good value for money.Very good finishing,metal frontplate,good sound.
Date published: 2008-04-13
Rated 5 out of 5 by from I know this Tweeter Great!!I can tell you...this speaker is one of the best Tweeter whe you can cross over with 3kHz this is is the only litte Problem instead of an 25mm Kalotte they often goes down from 2kHz.But therfore they play much better in most of the hearing-rooms because they dont reflect so much from floor and (dont know english name "Decke"
Date published: 2007-12-15
Rated 4 out of 5 by from Works nice as MTM tweeterUsed with HiVi M5N woofer for a smooth and clear center channel speaker with good dispersion.
Date published: 2007-08-27
Rated 5 out of 5 by from smooth as a baby's bottomI have these mated with Focal 6 inch midwoofers for the best bookshelf speakers I have ever owned.
Date published: 2007-06-07
Rated 4 out of 5 by from Very very good Speaker for 3WayI have never heared a Speaker from 3kHz with better Sound in this price kategory
Date published: 2007-05-26

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HiVi RT1C-A Planar Isodynamic Tweeter

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