Build: Heavy, robust IEM. Nice, industrial look.
Comfort: Heavy. (20g) It causes to break seal. Below average.
Isolation: Vented. You'll hear the environment, which interferes with the quality of sound.
With green filter:
Bass: +5 dB at sub bass (20-80Hz). Gradual downslope in mid bass. Great.
Midrange: Excellent. Perfect lower midrange. Slightly recessed lower midrange between 1.5k and 4k. Small 4.5k peak.
Treble: Very good. Small resonance peak. Air is recessed, though.
Tonality: Relaxed neutral. Fantastic. Sub bass could be more pronounced. Treble could be more extended. A
EQ: Not needed.
Detail: Hard, fast transients. Fantastic clarity. This redefines the price bracket. There is no such a resolving DD driver under cca. 600 EUR.
Imaging: Average soundstage, precise imaging.
Dynamics: Average.
Tech: A-
Bias: A-
Score: A-
Value: Worth the blind. At $200 they are unbeatable.
Wonderfully built, great look, great cable and case. JVC's 11mm DLC driver is a masterpiece. Price is fantastic, I got them at $200 and nothing comes close to it. ER4XR you can maybe get at $300 but has a BA bass and ety fit. Blessing 2: Dusk is $320 with better technicalities but FDX1 beats it at coherency and bass and Dusk has an even bigger nozzle. HS1650 has similar tech and coherency but at triple the price. Resolution of FDX1 is great with fantastic clarity that beats anything close to it. Tuning is great, wonderfully balanced. They look great with nice "industrial" design. Included case and cable are superb. At $200 they are unbeatable.
So is there any reason you should not buy it? No, but there are some caveats. They are heavy, which means if your ear canal is sweaty or oily, they will easily slip out. Nozzle is medium thick but if you rotate it right, they will fit even in small ear canal. (In contrast to B2, Variations, Monarch, etc.) Isolation is poor, which means you will hear the traffic around you which will somewhat defeat the wonderful sound and technicalities of the IEM. If I could change the one thing about them it would be the isolation.
Comfort: Heavy. (20g) It causes to break seal. Below average.
Isolation: Vented. You'll hear the environment, which interferes with the quality of sound.
With green filter:
Bass: +5 dB at sub bass (20-80Hz). Gradual downslope in mid bass. Great.
Midrange: Excellent. Perfect lower midrange. Slightly recessed lower midrange between 1.5k and 4k. Small 4.5k peak.
Treble: Very good. Small resonance peak. Air is recessed, though.
Tonality: Relaxed neutral. Fantastic. Sub bass could be more pronounced. Treble could be more extended. A
EQ: Not needed.
Detail: Hard, fast transients. Fantastic clarity. This redefines the price bracket. There is no such a resolving DD driver under cca. 600 EUR.
Imaging: Average soundstage, precise imaging.
Dynamics: Average.
Tech: A-
Bias: A-
Score: A-
Value: Worth the blind. At $200 they are unbeatable.
Wonderfully built, great look, great cable and case. JVC's 11mm DLC driver is a masterpiece. Price is fantastic, I got them at $200 and nothing comes close to it. ER4XR you can maybe get at $300 but has a BA bass and ety fit. Blessing 2: Dusk is $320 with better technicalities but FDX1 beats it at coherency and bass and Dusk has an even bigger nozzle. HS1650 has similar tech and coherency but at triple the price. Resolution of FDX1 is great with fantastic clarity that beats anything close to it. Tuning is great, wonderfully balanced. They look great with nice "industrial" design. Included case and cable are superb. At $200 they are unbeatable.
So is there any reason you should not buy it? No, but there are some caveats. They are heavy, which means if your ear canal is sweaty or oily, they will easily slip out. Nozzle is medium thick but if you rotate it right, they will fit even in small ear canal. (In contrast to B2, Variations, Monarch, etc.) Isolation is poor, which means you will hear the traffic around you which will somewhat defeat the wonderful sound and technicalities of the IEM. If I could change the one thing about them it would be the isolation.
The FDX1 can compete with sets up to $500, no exaggeration.
It's no kilobuck destroyer or anything but very impressive given you can commonly find the FDX1 second hand for around $150 which is incredible value.