Fidelix FRT-120K (Pamina) Ribbon type super tweeter
Product code:Fidelix FRT-120K (Pamina) Ribbon type super tweeter
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The “air” of the sound field changes
A ribbon super tweeter that advances not only ultra-high frequencies but also spatial expression itself.
new to musicholographic soundstageand three-dimensional feeling
FRT-120K (nickname: Pamina) has natural overtones andholographic soundstageThis is a ribbon-type super tweeter developed with a thorough design philosophy to bring out the best possible results. It supports ultra-wideband playback from 4kHz to 120kHz, and 150kHz at ±10dB, dramatically increasing the width and transparency of the sound field not only for high-resolution sound sources but also for analog discs and CDs.
The effect of FRT-120K is not just "addition of ultra-high frequencies".
Vocal localization, hallholographic soundstage, the lingering sound of musical instruments, the natural expansion of the space, etc., raising the expressive power of the entire system. This is a type of super tweeter that does not have an exaggerated "effect", but naturally increases the amount of information while enhancing the original musicality.
Full drive by ultra-light ribbon diaphragm
FRT-120K uses an ultra-light ribbon diaphragm with a planar coil formed on a film.
By uniformly driving the entire diaphragm within a strong magnetic field, it achieves ultra-high-speed response and extremely natural phase characteristics that are difficult to achieve with typical dome-shaped tweeters.
Furthermore, by adopting a transformerless structure, we eliminate elements that impair the delicateness and sense of speed that are unique to ribbons.
Although the FRT-120K has ultra-high frequency reproduction ability, it operates extremely naturally from around 4kHz, making it extremely smooth to connect with existing speakers.
Carefully selected parts and cabinets
The parts used are carefully selected with sound quality as the top priority. The capacitor uses PPS film, and the coil uses an air-core type with Litz wire fixed with varnish. The wiring material is polyethylene-coated oxygen-free copper wire, and the terminals are made of non-magnetic material to maintain maximum signal purity. Bubinga wood, which has both weight and hardness, is used for the cabinet, achieving both a musical instrument-like texture and suppressing unnecessary resonance. All choices are made to achieve a more natural and richer sound.
Precise pairing and the charm of sound
FRT-120K undergoes strict measurement and characteristic matching before shipping to ensure the best pairing. As a result, the left and right playback characteristics are aligned, making it possible to play music that goes beyond the role of a super tweeter. By adding this tweeter, the overtones of stringed instruments, the breath of vocalists, and the reverberations of the hall are vividly reproduced, giving the music a sense of life and depth.
A device that evolves the system
The FRT-120K not only brings out the charm of high-resolution sound sources and SACDs, but is also effective when playing analog discs. Natural extension in the high rangeholographic soundstageThis is a super tweeter for those who are looking for something to try.
Especially recommended system
- horn speaker
- coaxial unit
- full range system
- BBC monitor system
- vintage speakers
- JBL / TAD / ALTEC series
- Vacuum tube amplifier environment that emphasizes sound field expression
etc., “holographic soundstage” and systems that place emphasis on “natural sound”.
| format | Ribbon type with transformerless type |
|---|---|
| Frequency characteristics |
4kHz-120kHz(±2dB) 4kHz-150kHz(±10dB) |
| input power | 20W (peak) 10W (rated) |
| impedance | 6 ohms |
| efficiency | 86dB (2.83V) |
| dimensions | Bottom 134mm Top 106mm Height 94mm Depth 70mm |
| weight | 700g |
Super high-frequency transparency and sound field expression
- The moment I added the super tweeter, I had a strong impression that the sound field had expanded upwards. The FRT-120K naturally complements the ultra-high frequencies outside the audible range, soholographic soundstageThe lingering sound becomes richer all at once, and the three-dimensional feel and depth of the sound field increases dramatically. It feels as if the space itself has expanded.
- The extension of the high range is smooth, and the freshness of the sound is greatly improved. Thanks to the light, ribbon-shaped diaphragm, fine details become clearer, and the overall clarity of the music is raised to a higher level.
Integrability and compatibility with existing systems
- The connection with the main speakers is surprisingly natural, and it doesn't feel like the super tweeter is standing out. Because the phase characteristics are very good, it blends smoothly with the existing high frequency range, bringing the entire system together as one sound.
- What's interesting is that by adjusting the ultra-high range, it feels like the tightness and resolution of the low range has improved. The out-of-band improvements seem to have a positive impact on the overall balance.
Quality and ease of use
- The great thing about it is that it is relatively simple to install and adjust, and you can experience the effects immediately after installing it.
The more detailed you go, the easier it is to understand the changes in the sound, and the more fun it is to make adjustments.
- The beautiful design unique to the ribbon unit is also attractive, and the finish makes you feel the joy of owning it.
