3rd generation ultra-low frequency oscillator "FEQ Carbon"
The walls of the listening room disappear and the special seats at Carnegie Hall appear in front of you.
Unique ULF (Ultra Low Frequency) technology and dry carbon housing redefine the sound field, making it ideal for recording sites.holographic soundstage(Ambient).
FEQ Carbon is a third-generation sound field adjustment accessory that further evolves the unique "Schumann wave" technology that Synergistic Research has cultivated for over 10 years. Equipped with two independent ULF frequency generators, it neutralizes the acoustic distortion of the room, maximizing the system's original potential.
Main features
Sound field control using ULF (ultra low frequency) technology
- Voicing that uses resonance points rectifies the "phase disturbance" that occurs when the sound pressure and electromagnetic waves emitted from the speaker interfere with the walls and furniture of the room.
- The moment you install it, the sound separation improves dramatically, allowing you to enjoy a three-dimensional and realistic music experience that goes beyond the framework of the speakers.
Dry carbon casing that functions as an “antenna”
- The casing uses high-grade dry carbon. This is not just a design; it serves as a "conductive antenna" to efficiently propagate ULF waves into space, improving holographic reality.
Two frequency modes to optimize for your music
- Blue Frequency:Ideal for live instruments such as guitars, wood basses, drums, etc., vocals, and songs with small ensembles. Highlights delicate nuances and transparency.
- Red Frequency: Suitable for songs that require an overwhelming sense of scale and energy, such as large orchestras or live electronic music.
Towards greater heights: system expansion
ATM Carbon:ATM Carbon is a tuning module specifically voiced for FEQ Carbon. By placing it on top of FEQ Carbon, it further lowers the perceived noise floor and gives vocals and instruments a vibrant timbre. The high frequency attenuation blends into a more expansive space, while the low frequency evolves into something tighter and more impactful. It is an essential upgrade item that can be called a "turbocharger" for FEQ Carbon.

Connecting to Active Ground Block:By connecting it with Synergistic Research's ground block, you can get an even quieter feeling (black background).
Operational advice
After installing FEQ Carbon, we recommend energizing it for a certain period of time to allow it to acclimate to the environment. Immediately after installation, you can experience the sound field expanding beyond the physical boundaries of the room.
How to use modes
By selecting "Blue" for acoustic recordings and "Red" for live recordings or songs that use a lot of synthesizers, you can create a holographic sound field that is faithful to the intent of the recording source.
| technology |
3rd generation ULF (Ultra Low Frequency) generation technology |
|---|---|
| Housing material |
Dry carbon fiber (with ULF propagation antenna function) |
| operating mode |
2 stages (Blue: small ensemble/vocal / Red: large ensemble/electronic music) |
| power supply | 24V DC (dedicated AC adapter included) |
| dimensions |
Width 104mm x Depth 104mm x Height 356mm |
Overseas reviews and ratings & Testimonials)
[Stereo Times]
“F.E.Q. Carbonを導入した瞬間、その実力に圧倒されました。音場全体が完全に飽和し、開放感と次元(幅・高さ・奥行き)が劇的に向上しました。リスニングルームの壁が文字通り『崩れ落ちる』ような感覚です。音は以前よりもエフォートレスで自然に溢れ出し、ボーカルや楽器には有機的な質感が加わりました。低域はより力強く、中域には素晴らしい存在感と厚みが生まれます。全帯域にわたって音楽性を高めてくれる、真に驚くべきデバイスです」












