

FiiO FP3 Planar Driver In-Ear Monitors
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FiiO FP3 Planar Driver In-Ear Monitors
Overview
The FiiO FP3 is a wired in-ear monitor built around a 14.5mm planar driver, the kind of driver usually found in full-size headphones. It's for listeners who want the fast, clean, detailed sound planar drivers are known for, in a light pair of earphones with a solid wood faceplate.
The FP3 uses FiiO's second-generation, self-developed planar driver with a diaphragm only 1μm thick. FiiO's patented dual coating lays aluminum on a PET film to improve conductivity and lower the power the driver needs, then titanium for rigidity and treble clarity. Ultra-fine 0.055mm traces, 486.5mm in total, pack more driving force into the magnetic field, and 14 N52 neodymium magnets (seven on each side) power the diaphragm. FiiO's patented F.T.B.S. Tesla valve acoustic structure, shared with the FD15, helps the planar driver deliver fuller bass.
Each earpiece weighs about 6.5g, with a high-precision 3D-printed front shell that's hand-polished and UV-coated. It's Hi-Res Audio certified by both JAS and CEA, and comes with a detachable 0.78mm 2-pin cable (4 strands, 392 silver-plated copper wires) with a gold-plated 3.5mm plug, an HB11 storage case, and treble and balanced ear tips.
Simcoe Audio Video Insight
The FP3 is a good way to try planar sound in an IEM without the bulk some planar earphones have. FiiO's aluminum-coated diaphragm is designed to keep power needs down, and at 36 ohms and 105dB/mW, it runs well from a dongle DAC or portable player. The treble tips come installed, but try the balanced tips too and use whichever gives you the best seal. The 2-pin connector makes it easy to swap cables later if you want a balanced 4.4mm option.
More Info
Why the FiiO FP3 Stands Out
14.5mm Planar Driver
FiiO's 2nd-gen driver for fast, detailed sound.
1μm Dual-Coated Diaphragm
Aluminum and titanium layers for conductivity and clarity.
14 N52 Magnets
Seven per side for strong, even drive across the diaphragm.
Tesla Valve Bass Structure
Patented F.T.B.S. design for fuller planar bass.
Light, Comfortable Fit
About 6.5g per earpiece with a 3D-printed front shell.
Detachable 2-Pin Cable
392-wire silver-plated copper with a 3.5mm plug.
Buyer's Guide
Who It's For
- The Planar-Curious Listener: Wants to hear planar speed and detail in an IEM.
- The All-Day Wearer: Wants a light, compact earphone for long sessions.
- The Cable Swapper: Wants a standard 0.78mm 2-pin connector.
How It Compares
The FP3 and FP3 TC share the same planar driver and shell. The FP3 uses a 3.5mm cable for any DAC, player, or amp, while the FP3 TC adds a USB-C cable with a built-in DSP decoding chip for direct use with phones and computers.
FiiO FP3 Planar Driver In-Ear Monitors Specifications
| General Information | |
|---|---|
| Model | FiiO FP3 |
| Brand | FiiO |
| Product Type | Planar in-ear monitor, wired |
| Audio | |
| Driver | 14.5mm planar, 2nd-gen self-developed |
| Diaphragm | 1μm PET with aluminum and titanium dual coating; 0.055mm traces, 486.5mm total length |
| Magnets | 14x N52 neodymium (7 per side) |
| Bass Design | F.T.B.S. Tesla valve structure |
| Frequency Response | 10Hz to 40kHz |
| Impedance | 36 ohm @ 1kHz |
| Sensitivity | 105dB/mW @ 1kHz |
| Certification | Hi-Res Audio (JAS, CEA) |
| Cable | |
| Cable | 4 strands, 392 silver-plated copper wires |
| Connector | 0.78mm 2-pin, detachable |
| Plug | Gold-plated 3.5mm |
| Length | About 1.2m |
| Physical Specifications | |
| Shell | High-precision 3D-printed front shell, UV-coated; solid wood faceplate |
| Fit | Around-the-ear |
| Weight | About 6.5g per earpiece (excluding cable) |
| In the Box | |
| Included | FP3 earphones, 0.78mm 2-pin silver-plated copper cable, HB11 storage case, treble tips (S/M/L, M installed), balanced tips (S/M/L), quick start guide |
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