x Rational HiFi FISSION Bass Enhanced Wired Earbuds with Special Tuning | Audiophile In-Ear Monitors with 3 Tuning Nozzles, 12 Customizable Sounds, CNC Alloy Shell, Custom Tuning via App, 2 pin

DMT5 Flagship Dynamic Driver, CNC Precision Acoustic Wave GuideFeatures DMT5 dual magnet, dual chamber structure. THD (Total Harmonic Distortion) at 1kHz achieves less than 0.056 % at 94dB playback, delivering extremely faithful tonal reproduction and a vast soundstage. Furthermore, it incorporates a high-precision waveguide made of brass, CNC-machined based on FEA analysis, which improves high-frequency conduction efficiency and enables an open and delicate high-frequency response.; TANCHJIM x Rational HiFi Built-in DSP sound profile tuned by Rational HiFi. Mr. GFSH119, founder of Rational HiFi, pursues faithful sound reproduction.

After extensive listening, a dedicated DSP preset was created for the FISSION collab. This preset is unique to the FISSION collab. Rational HiFis tuning focuses on low-frequency optimization by setting F0 relatively low, for greater low-frequency energy and wider dynamic range. The housing is optimized to avoid overly thick vocals. This design delivers balanced, natural sound.; 4-Stage Filter × 3 Nozzle Combinations, 12 Customizable SoundsFeatures a 4-stage adjustable analog filter knob, allowing seamless switching between four sound modes: Pops, Vocal, Ambient, and Monitoring. Additionally, it comes with three different material nozzles (brass/stainless steel/titanium), which can be freely swapped to enjoy 12 distinct sound styles. This versatile tone adjustment capability enriches and expands your listening experience.;