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HiVi RT2C-A Planar Isodynamic Tweeter

HiViPart # 297-406
Model: RT2C-A
• Planar • Power handling: 30 watts RMS/60 watts max • Nominal impedance: 8 ohms • DC resistance: 7 ohms • Frequency range: 1,700-25,000 Hz • SPL: 94 dB 1W/1m

Key Features

  • Near weightless diaphragm results in exceptional transient response
  • Extremely flat frequency response from 2,000 to over 20,000 Hz
  • Remarkably linear impedance and phase simplifies crossover design
  • Reproduces the tiniest details with extreme clarity and transparency
Your Price: $108.98
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MSRP: $137.99
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Overview

HiVi RT2C-A Planar Isodynamic Tweeter

Why Isodynamic? Contrary to a conventional dynamic driver, these transducers have a driving force distributed evenly over the whole area of their vibrating elements. The key feature of the RT2C-A is the membrane, which consists of Kapton film with a pattern of aluminum conductors. The conductors cover about 90% of the whole vibrating area. The membrane assembly is placed precisely between two rows of Neodymium and Barium Ferrite bar magnets. A larger membrane area provides higher power handling and substantially extended low-end cut-off frequency. The aluminum mounting flange, with flared waveguide, controls the frequency response and directivity of the tweeter. This tweeter is magnetically shielded and is extremely flat with a depth only 27 mm including the mounting flange.

The RT2C-A has resistive impedance in the audio frequency range. This unique feature provides a friendly load for any amplifier and facilitates easy crossover design. Unlike other drivers, it has an essentially linear phase response that provides time coherent reproduction resulting in accurate musical rhythm and imaging. The vibrating elements are almost weightless compared to that of a dome tweeter. As a result, it provides an immediate and precise response to any transients in the original signal. The RT2C-A has the exceptional ability to reveal the dynamics of instruments with complex high frequency spectra. Unlike conventional tweeters and electrostatic speakers, this tweeter has an extremely wide sound dispersion in the horizontal plane. At the same time, contrary to other dynamic tweeters, it also has well-controlled dispersion in the vertical plane. This feature helps to avoid disturbing floor and ceiling reflections, increasing imaging accuracy. There is no need to manipulate the network or use multiple units to achieve the restricted vertical directivity necessary for home theatre applications.

When considering all of the properties of the RT2C-A, it becomes clear why many critical listeners among audiophiles highly prize planar transducers for their unsurpassed clarity, transparency and the ability to deliver every tiniest musical detail. Since these isodynamic tweeters have the exceptional ability to reveal the dynamics of instruments and sonic resolution, it is recommended to match it with drivers having similar properties in order to maximize the overall integrity of a speaker system.

The clamped membrane of the RT2C-A is connected to the more massive round front metal plate. This, combined with a special heat conductive compound, provides effective cooling of the aluminum conductors, dramatically increasing its dynamic range. Recommended crossover frequency is >1,700 Hz.

Product Details

BrandHiVi
ModelRT2C-A
Part Number297-406
UPC844632021732
Unit of MeasureEach
Weight1

Product Specifications

Cutout Diameter6.19
Tweeter TypePlanar
Power Handling (RMS)30 Watts
Impedance8Ω
Frequency Response1,700 to 25,000Hz
Sensitivity94dB 2.83V/1m

Thiele-Small Parameters

DC Resistance (Re)7Ω

Mounting Information

Overall Outside Diameter7"
Depth0.75"

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