Technology
Pure Class A amplification method applied
All of Fjord Audio's amplifiers only a complete Class A with the highest level of sound satisfaction.
Zero Feedback Design
Feedback is a factor that interferes with natural sound. It's not easy with a vacuum tube, but The Zero Feedback circuit has been completed.
Application of proprietary DFD (Direct Full Difference Circuit) circuit
In vacuum tube amplifiers, we have completed a unique Direct Full Difference vacuum tube circuit.
The Importance of Power Design
All of Fjord's products pay special attention to the design of the power supply. We intentionally applied a classic filter, By focusing on minimizing noise and providing sufficient power, it provides sufficient gain for actual sound.
Military standard PCB design
Vacuum tube amplifiers that maintain high pressure and temperature should not use general PCBs. Fjord Audio has secured quality in terms of lifespan and heat generation through the PCB by applying military-standard copper plate thickness of 105㎛.
Application of unique UTS (Upper Tube Set) method
We use a unique UTS mechanism structure to reduce harmonic noise that may occur in vacuum tubes.
Automatic bias check and application of various protection circuits
P150 always checks the bias of the output tube to maintain the best condition and operates an automatic protection protection circuit in the event of overvoltage.
All amplifiers basically employ Standby Power and Mute circuits.
Use of dedicated FJORD vacuum tube
Uses specially selected Fjord vacuum tubes, Quality was secured through pair matching and aging in the production process.
Equipped with the world’s highest grade transformer
Through technical partnership with a transformer specialist company recognized as one of the highest in the world. We have completed a high-quality, high-performance transformer.
Fjord Audio Exclusive Volume Attenuator
Designed as an independent program through collaboration with an Attenuator specialist company, It is an etunator with precise performance and quality, and uses resistance.
Designed By South Korea, Made in China
Applying South Korea’s R&D and sound tuning, incorporating China’s manufacturing infrastructure