SIMGOT EA1000 Fermat
All-metal dynamic-driver earphones with a passive radiator and swappable nozzles
Pros
- Superb technical performance: wide, holographic soundstage and class-leading resolution
- Tight, fast bass with natural decay from the passive radiator
- Three swappable nozzles that genuinely shift vocal presence and treble balance
- Mirror-finished CNC stainless-steel shells with crystal faceplates
Cons
- Energetic treble that can sound bright or sharp to treble-sensitive ears
- Lower mids can feel lean if you prefer thick, warm vocals
- Heavy metal shells (11 g per side)
- Cable terminates in a fixed 3.5 mm plug with no modular 4.4 mm balance option
Updated
Details and specs
The SIMGOT EA1000 Fermat sits in the $200-plus bracket as Simgot’s flagship dynamic-driver earphone. It pairs a 10 mm dual-magnet, dual-cavity dynamic driver with a purple-gold diaphragm and an unusual 6 mm passive radiator designed to manage ear-cavity pressure and natural bass decay. It arrived in late 2023 and has earned a strong reputation among audiophiles for technical performance that rivals multi-driver sets twice its price.
Reviewers praise its wide, holographic soundstage, precise instrument separation, and fast, clean bass texture. The tuning leans articulate and energetic: vocals are clear and forward, and treble extends with sparkling detail. That energy can lean bright or sharp on aggressive tracks for treble-sensitive listeners, and the lower midrange is neutral rather than warm or thick. Three interchangeable tuning nozzles (brass and two stainless-steel variants) let you fine-tune the upper-mid balance. The mirror-finish stainless-steel shells look premium but are weighty at 11 g per earbud.
- One 10 mm dynamic driver (sputtered purple-gold diaphragm) and one 6 mm passive radiator per side
- Impedance 16 Ω, sensitivity 127 dB/Vrms (easy to drive from a phone or dongle)
- Frequency response 10 Hz to 50 kHz (effective 20 Hz to 20 kHz)
- CNC stainless-steel shells with transparent crystal faceplates
- Three pairs of swappable tuning nozzles (one brass, two stainless steel)
- Detachable silver-plated OFC Litz cable with a 0.78 mm 2-pin connector, 3.5 mm plug
- Weight ~11 g per earpiece
- Released late 2023
