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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
ModelFiiO FP3
BrandFiiO
Product TypePlanar in-ear monitor, wired
Audio
Driver14.5mm planar, 2nd-gen self-developed
Diaphragm1μm PET with aluminum and titanium dual coating; 0.055mm traces, 486.5mm total length
Magnets14x N52 neodymium (7 per side)
Bass DesignF.T.B.S. Tesla valve structure
Frequency Response10Hz to 40kHz
Impedance36 ohm @ 1kHz
Sensitivity105dB/mW @ 1kHz
CertificationHi-Res Audio (JAS, CEA)
Cable
Cable4 strands, 392 silver-plated copper wires
Connector0.78mm 2-pin, detachable
PlugGold-plated 3.5mm
LengthAbout 1.2m
Physical Specifications
ShellHigh-precision 3D-printed front shell, UV-coated; solid wood faceplate
FitAround-the-ear
WeightAbout 6.5g per earpiece (excluding cable)
In the Box
IncludedFP3 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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FiiO FP3 Planar Driver In-Ear Monitors FAQs

What driver does the FiiO FP3 use?

A 14.5mm second-generation planar driver developed by FiiO, with a 1μm aluminum and titanium dual-coated diaphragm and 14 N52 magnets.

Do I need an amp for the FP3?

Not usually. At 36 ohms and 105dB/mW, it works well with dongle DACs and portable players. FiiO's aluminum coating is designed to lower the driver's power needs.

Does the FP3 have a detachable cable?

Yes. It uses a standard 0.78mm 2-pin connector with a 392-wire silver-plated copper cable and a gold-plated 3.5mm plug.

What's the difference between the FP3 and FP3 TC?

They share the same planar driver. The FP3 TC swaps the 3.5mm cable for a USB-C cable with a built-in DSP decoding chip, so it plugs straight into phones and computers.

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