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FiiO FH5s Earphone with 2 Dynamic Drivers and 2 Knowles Balanced Armatures

Overview

The FiiO FH5s is a hybrid in-ear monitor with two dynamic drivers and two balanced armatures per ear, plus three tuning switches for bass, mids, and treble. It's for listeners who want full, natural bass and clear vocals, with the option to shift the sound to suit different music or moods.

FiiO's 2+2 layout uses a 12mm beryllium-plated dynamic driver with a PU gasket and 1.5 Tesla N52 magnets for deep, controlled bass, and a 6mm beryllium-plated dynamic driver for the mids, which gives vocals more body and a wider soundstage than the balanced armature the original FH5 used there. A Knowles TWFK-30017 dual balanced armature sits right in the sound tube, close to the ear, for extended treble. The three switches give eight tuning combinations, and the semi-open rear cavity relieves air pressure for a larger soundstage and more comfortable long sessions.

The TRISHELL design locks the 5-axis CNC-machined aluminum-magnesium alloy rear shell, body, and front cover together at three points to cut resonance and distortion. Each earpiece weighs about 8.8g. It's Hi-Res Audio certified and comes with a detachable silver-plated copper Litz cable with MMCX connectors and swappable 3.5mm and 4.4mm twist-lock plugs, an HB5 carrying case, and 13 pairs of ear tips.

Simcoe Audio Video Insight

The FH5s is a smart pick if you like to tinker but don't want to buy a second pair of earphones for different genres. Start with all three switches in their default positions, then change one at a time so you can hear what each does. At 40 ohms and 106dB/mW, it pairs well with a dongle DAC or portable player, and the 4.4mm plug lets you use a balanced output straight away.

More Info

Why the FiiO FH5s Stands Out

2 Dynamic + 2 Balanced Armature

12mm and 6mm beryllium-plated drivers with a Knowles TWFK-30017.

Three Tuning Switches

Bass, mid, and treble switches for eight sound options.

Semi-Open Rear Cavity

Relieves pressure for a bigger soundstage and comfortable long sessions.

TRISHELL Construction

Three-point fixed aluminum-magnesium shell to cut resonance.

Swappable 3.5/4.4mm Plugs

One cable for single-ended and balanced sources.

Hi-Res Audio Certified

Detailed sound from bass through ultra-highs.

Buyer's Guide

Who It's For

  • The Genre-Hopper: Wants one IEM that can lean warmer or brighter on demand.
  • The Balanced-Source Owner: Has a 4.4mm output and wants to use it with no adapter.
  • The Vocal Lover: Wants a dynamic mid driver for fuller, more natural vocals.

How It Compares

The FH5s replaces the original FH5's mid-range balanced armature with a 6mm dynamic driver for smoother, fuller vocals. Next to the FiiO FH3, it adds a second dynamic driver, three tuning switches, and a balanced-ready cable. The FH5s Pro uses a higher-wire-count cable.

FiiO FH5s Earphone with 2 Dynamic Drivers and 2 Knowles Balanced Armatures Specifications

General Information
ModelFiiO FH5s
BrandFiiO
Product TypeHybrid in-ear monitor, wired, semi-open rear cavity
Audio
Drivers12mm beryllium-plated dynamic (PU gasket); 6mm beryllium-plated dynamic; Knowles TWFK-30017 compound BA
Tuning3 switches (bass, mid, treble), 8 combinations
Frequency Response10Hz to 40kHz
Impedance40 ohm @ 1kHz
Sensitivity106dB/mW
Max Input Power100mW
CertificationHi-Res Audio
Cable
CableHigh-purity monocrystalline silver-plated copper, four-strand Litz
ConnectorMMCX
PlugsSwappable twist-lock 3.5mm and 4.4mm, gold-plated
Length120cm
Physical Specifications
ShellTRISHELL, 5-axis CNC aluminum-magnesium alloy
FitOver-the-ear
WeightAbout 8.8g per earpiece
In the Box
IncludedFH5s earphones, cable, swappable plugs, HB5 carrying case, bi-flange tips (1 pair), vocal, bass, balanced and foam tips (3 pairs each), cleaning brush, MMCX tool, manual

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FiiO FH5s Earphone with 2 Dynamic Drivers and 2 Knowles Balanced Armatures FAQs

What drivers does the FiiO FH5s use?

A 12mm beryllium-plated dynamic driver for bass, a 6mm beryllium-plated dynamic driver for mids, and a Knowles TWFK-30017 dual balanced armature for treble.

What do the tuning switches do?

Three switches adjust the bass, mids, and treble, giving eight different sound combinations to match your music or taste.

Is the FH5s easy to drive?

Yes. At 40 ohms and 106dB/mW, it works well with dongle DACs, portable players, and phones with a headphone output.

Can I use it with a balanced source?

Yes. The cable has swappable 3.5mm and 4.4mm twist-lock plugs, so you can switch between single-ended and balanced outputs.

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