Overview

The NICEHCK F1 Pro is a wired in-ear monitor featuring a 14.2mm planar magnetic driver with a 2μm ultra-thin diaphragm and N55 neodymium magnets in a dual-sided magnetic circuit. Released in late 2023 and available from early 2024, it targets the wired planar IEM market as a successor to the original NICEHCK F1, with refined driver engineering and updated ergonomics. The compact teardrop-shaped CNC-machined aluminum alloy shell accommodates smaller ear canals. The detachable 0.78mm 2-pin cable ships in 3.5mm single-ended and 4.4mm balanced termination variants [1]. NICEHCK’s official About page states that the brand was founded in 2015 [6].

Scientific Validity

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Third-party frequency response measurements from an IEC-711 compliant coupler, compared against the Harman in-ear 2019 target, show a standard deviation of 1.99 dB for the F1 Pro [2][3]. This places the frequency response compliance in the good range. The primary deviation is a notable boost in the 6–8 kHz mid-treble region relative to the Harman reference, with mild sub-bass roll-off below approximately 50 Hz. The cited product listing specifies a 20 Hz–28 kHz frequency response (no tolerance stated), 16 Ω impedance, and 104 dB/mW sensitivity [1]; these values are unverified by independent third-party measurement. No third-party THD measurements are available for the F1 Pro from any source. S/N ratio is not applicable to a passive IEM transducer. The good frequency response result, as the primary quantified performance metric for this product category, supports the score.

Technology Level

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The F1 Pro employs technologies that were already commoditized in the planar IEM market at its 2023/2024 release. The 14.2mm planar magnetic driver format was established by the 7Hz Timeless in 2021, and N55-grade magnets with dual-sided magnetic circuits were widespread among competing products by 2022–2023. No patents relevant to the F1 Pro’s driver or acoustic design were identified. The actual driver manufacturing source is not disclosed, leaving the in-house development claim unconfirmed. The “coaxial magnetic design” cited in product materials lacks technical documentation, patent filings, or independent measurement verification of any claimed performance benefit. The product is entirely analog and passive with no digital integration. Contemporary competing products offered functionally identical specifications, providing no identifiable competitive differentiation.

Cost-Performance

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This site evaluates based solely on functionality and measured performance values, without considering driver types or configurations.

The NICEHCK F1 Pro is available at 100 USD [1]. The cheapest equivalent-or-better wired IEM with detachable 0.78mm 2-pin cable support and credible third-party measurement data identified is the 7Hz x Crinacle Salnotes Zero:2 at 24.99 USD [5].

The 7Hz x Crinacle Salnotes Zero:2 provides passive wired in-ear monitoring with 3.5mm analog connectivity and a detachable 2-pin cable. Third-party measurements document close Harman-target compliance and low distortion for the Zero:2 [4], while F1 Pro frequency-response measurements show a 1.99 dB standard deviation from the same target [2][3]. No third-party THD data exists for the F1 Pro, precluding direct comparison on this metric.

CP = 24.99 USD ÷ 100 USD = 0.2499

Reliability & Support

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The F1 Pro’s passive single-driver design with aluminum alloy housing and a detachable cable constitutes a structurally simple and robust build. The detachable 0.78mm 2-pin cable addresses the most common IEM failure point through user replaceability. No widespread failure reports, recalls, or manufacturing defect patterns appear across review sources and user communities as of the review date. NICEHCK states that it provides worldwide customer-service support and lists Amazon and AliExpress store channels [6]. The documented support information is less comprehensive than brands with clearly published regional warranty and repair-center coverage, so long-term service predictability remains limited.

Rationality of Design Philosophy

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The F1 Pro adopts a cost-performance oriented approach and avoids vacuum tubes, R2R ladder configurations, and unscientific audio claims in its core design. Third-party reviews confirm measurable refinements in treble and ergonomics compared to the predecessor NICEHCK F1, representing genuine iterative product progress. However, a meaningful portion of product cost is directed toward elements with no demonstrable audio performance contribution: the 5-axis CNC machining and blue/gold aesthetic serve appearance rather than function, and the bundled OCC+SPC cable carries implicit audio quality positioning unsupported by measurement evidence. The “coaxial magnetic design” claim asserts an audible performance benefit without technical documentation or independent measurement substantiation. The overall development direction follows established market conventions without introducing novel approaches to measurable audio performance improvement.

Advice

For buyers whose primary evaluation criterion is measured audio performance per unit cost, the F1 Pro at 100 USD is not competitive. The 7Hz x Crinacle Salnotes Zero:2 at 24.99 USD [5] provides equivalent passive wired IEM functionality with published third-party measurement data [4].

The F1 Pro’s practical differentiators are the detachable 0.78mm 2-pin cable with both 3.5mm SE and 4.4mm balanced terminations included, the compact aluminum alloy shell designed for smaller ear canals, and a comprehensive accessory bundle. Buyers who specifically require 4.4mm balanced connectivity from an included cable, or who prioritize the ergonomic fit of a compact CNC aluminum shell, may find these hardware features worth considering independently of the audio performance comparison. Region-specific warranty and repair information is limited in the cited public sources, so long-term support conditions should be checked with the seller before purchase.

References

[1] HiFiGo - NiceHCK F1 Pro New-Generation 14.2mm Planar Diaphragm Driver In-Ear Monitors - https://hifigo.com/products/nicehck-f1-pro - accessed 2026-06-28

[2] iegems (NKT) - NiceHck F1 Pro Review - https://iegems.nk-tran.com/2024/01/03/review-NiceHck-F1Pro.html - published 2024-01-03, accessed 2026-06-28 - IEC-711 coupler; Harman in-ear 2019 target reference

[3] AudioAmigo squig.link - NiceHCK F1 Pro frequency response database - https://audioamigo.squig.link/?share=NiceHCK_F1_Pro - accessed 2026-06-28 - IEC-711 coupler FR measurement

[4] Audio Science Review - 7Hz x Crinacle Zero:2 IEM Review - https://www.audiosciencereview.com/forum/index.php?threads/7hz-x-crinacle-zero-2-iem-review.50534/ - accessed 2026-06-28 - frequency response and distortion measurements

[5] Linsoul Audio - 7Hz x Crinacle Zero:2 (price reference) - https://www.linsoul.com/products/7hz-x-crinacle-zero-2 - accessed 2026-06-28; price: 24.99 USD

[6] NICEHCK - About US - https://www.nicehck.com/pages/about-us - accessed 2026-07-05

(2026.6.28)