Audiofrog Carbon Fiber 1-inch Audiophile Grade Automotive Tweeter - GB10CF

Audiofrog GB10-CF Carbon Fiber 1-inch Audiophile Grade Automotive Tweeter (Pair)

Designed for installation in factory or custom locations, the GB10CF 1” tweeter with acoustic lens provides ultra-low distortion, audiophile-grade performance with flat and extended high frequency response. The new carbon fiber dome allows a high pass crossover frequency of 2kHz when a Linkwitz Riley 24dB/oct filter is used. The unique installation kit makes custom installation a breeze whether you choose flush mount or something more custom.

Audiofrog’s new proprietary carbon fiber dome and acoustic lens provide performance unmatched by other 1” tweeters. GB10CF’s performance is so good, it rivals even high-end AMTs and comes in a smaller and easier-to-install footprint.

Audiofrog’s new GB10CF tweeter includes everything great about the original GB10—neodymium magnet, shorting ring, anti-reflection pad under the dome, chrome plated cast nickel housing and all the installation accessories needed to flush or custom mount the tweeter. The GB10CF features a thin film carbon fiber dome and an acoustic lens. What’s the big deal? Nearly ruler flat frequency response from 2kHz to 20kHz and distortion below 0.6% over the useable range provide unmatched detail and clarity. Best of all, GB10CF can be crossed at 2kHz with a 24dB/octave Linkwitz Riley filter, which makes it a stellar performer even in a 2-way system with a GB60.

Features

• Flat Frequency Response
  With frequency response within +/- 1.5dB measured on axis and within +/- 1dB measured at 15 degrees, GB10CF can be used with 2kHz 24dB/oct Linkwitz Riley high pass filter.
• Ultra Low Distortion
  With THD below 0.6% from 2kHz to 20kHz, GB10CF unmasks all the high frequency detail in your favorite recordings.
• World Class Engineering
  Like the original GB10, GB10CF includes a neodymium magnet with a copper shorting ring to reduce inductance and extend the high frequency response. A hemispheric foam pad under the dome absorbs reflections from rear-going sound waves so they don’t create frequency response aberrations in front of the tweeter.
  Additionally, GB10CF includes an acoustic lens and waveguide designed specifically to optimize the relationship between on and off axis sound.
• Eliminating Peaks And Dips
  At higher frequencies, the dispersion of sound from the tweeter narrows and the small shapes and edges around the dome begin to reflect sound. The waveguide, shown in green, and its proximity to the grille, also in green, prevents sound from being trapped in a cavity at the edge of the tweeter’s housing under the grille’s edge to prevent unwanted peaks and dips in the frequency response.
• Timing Problem
  At much higher frequencies sound is directed into a narrow beam and is radiated from all points on the tweeter’s dome, but those sounds don’t arrive at the listener at the same time. The sound emanated from the top of the dome arrives slightly sooner than the sound that comes from the edge of the dome. At a frequency where this arrival difference is a half a wavelength, this misaligned arrival creates a cancellation, or a dip in the frequency response.
• Acoustic Time Alignment
  Placing the lens above the dome redirects the sound that leaves the top of the dome, extending its pathlength so it arrives at the listener at the same time as the sound from the edge of the dome.
• Ideal Listening Window Response
  Finally, the lens also redirects some of the energy contained in a response peak which exists in nearly every tweeter with a very stiff diaphragm at very high frequencies from the on-axis response into the off axis response where it will be attenuated by the longer arrival distance in the car. You can clearly see that the peak at 16kHz has been removed from the 0-degree and 15-degree response in the frequency response plot below. The frequency and the level of attenuation is determined by the size of the disc and its distance above the dome.