HiVi RT2C-A Isodynamic Planar Ribbon Tweeter — Includes Install Kit

The HiVi RT2C-A is a large-format isodynamic planar tweeter engineered with an ultralight Kapton film diaphragm, a planar voice coil, and a neodymium magnet system. It has a massive 176mm cast faceplate, high 93 dB sensitivity, and a nearly flat 8-ohm resistive impedance curve, providing low-distortion high-frequency reproduction and effortless crossover design without requiring impedance compensation networks.

Product Highlights
  • Huge surface area delivers high dynamic headroom and handles crossovers as low as 1,800 Hz.
  • A flat impedance profile that drastically simplifies passive crossover design.
  • Symmetrical neodymium magnet array gives a high 93 dB sensitivity for fast transient response.
  • Free Installation Kit included to start your build immediately.

Brand: HiVi

Cinergy part # 57-122

In stock
Price
$90.95

Frequently Bought Together

HiVi RT2C-A Large-Format Isodynamic Planar Tweeter — With Installation Kit.

The HiVi RT2C-A challenges the limitations of conventional dome tweeters by delivering true large-format planar performance. Measuring nearly 7 inches in diameter, it is an absolute giant among planar tweeters. This isodynamic ribbon utilizes an ultralight Kapton film diaphragm for a nearly perfect transient response. The large radiating area permits a relatively low crossover point between 2,000 Hz and 3,000 Hz, making it easy to pair with larger 6.5-inch or 8-inch midbass woofers in high-end 2-way and 3-way systems. Acoustically, it offers exceptional efficiency and dynamcs.

For crossover designers, the RT2C-A solves several common passive network headaches. Because the conductive trace is an etched planar surface rather than a wound wire coil, voice coil inductance is practically nonexistent. This yields a flat, purely resistive impedance curve across its operational band from 1,700 Hz up to 30,000 Hz, meaning you won't need to add impedance-flattening Zobel networks to keep filter slopes predictable. The tweeter has a heavy, rigid cast aluminum front flange with an integrated acoustic flare to optimize horizontal dispersion while controlling vertical ceiling and floor reflections.

To save you a trip to the hardware store, we include a custom-matched Installation Kit at no extra charge so you can start building immediately. Each tweeter you buy comes with a pre-cut gasket, two quick connect terminals, and screws for free.


Highlights

  • Ultralight Kapton Planar Membrane: Delivers extended frequency response up to 30 kHz with rapid transient response and zero dome-resonance colorations.
  • Push-Pull Neodymium Matrix: Symmetrical magnetic field distributes uniform force across the entire diaphragm for ultra-low second- and third-order distortion.
  • Massive Cast Aluminum Flange: 176mm diameter heavy-gauge cast frame eliminates flexing while managing off-axis horizontal dispersion.
  • Complete Installation Kit Included: Ships with the exact matching mounting screws and quick-connect wire terminals needed to start your build immediately.


HiVi RT2C-A Specifications

Specification Value
Brand HiVi
Model RT2C-A
Material Kapton
Impedance 8 Ohm
Power Handling (RMS) 30 watts
Power Handling (MAX) 60 watts
Sensitivity 93dB (2.83v/1m)
Frequency Response 1,800 - 30,000 Hz
Outside Diameter 176mm (6.93 inches)
Cutout Diameter 157mm (6.19 inches)
Mounting Depth 18mm (.71 inches)
Weight 1.4 pounds



Thiele-Small Parameters

Parameter Value
DC Resistance (Re) 7 Ω

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HiVi RT2C-A Isodynamic Planar Ribbon Tweeter — Includes Install Kit

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