Overview

The FiiO FT5 is an open-back, wired headphone built around a 90mm planar magnetic driver using a PAR diaphragm and aluminum alloy voice coils. It's rated at 36 ohms with a 7Hz-40kHz frequency response, sensitivity of 110dB/Vrms and 96dB/mW at 1kHz, and a maximum power input of 2000mW. The shell and headband use a lightweight magnesium aluminum alloy construction, and FiiO includes two earpad types, suede and protein leather, so you can adjust the fit and tonal balance. A pair of swappable 3.5mm and 4.4mm audio plugs connect to a 392-wire, high-purity silver-plated monocrystalline copper cable, with dual 3.5mm connectors at the headphone end.

Simcoe Audio Video Insight

A 90mm planar driver is large even by planar magnetic standards, and pairing it with a 2000mW maximum power input signals FiiO built the FT5 to be driven by a proper desktop amplifier rather than a phone or laptop headphone jack.

• 90mm planar magnetic driver with a PAR diaphragm
• Open-back magnesium aluminum alloy construction
• Two earpad types included: suede and protein leather

Best for the FiiO FT5: pair it with a desktop DAC/amp that can comfortably supply its 2000mW maximum power input — a phone or laptop won't get you close to what this driver can do.

More Details

Why It Wins

• 90mm Planar Magnetic Driver: A PAR diaphragm and aluminum alloy voice coils tuned for a 7Hz-40kHz frequency response.
• Two Earpad Types: Suede and protein leather pads are both included, letting you tune the fit and sound.
• Swappable 3.5mm/4.4mm Plugs: The cable's audio plug swaps between single-ended and balanced without needing a separate cable.

What Makes It Different

Most headphones in this price range top out with a single earpad option and a fixed cable termination. The FT5 includes two earpad materials and a swappable-plug cable system, giving it more flexibility for different amps and preferences without buying separate accessories.

Technical Highlights

• 2000mW Maximum Power Input: Built to be driven hard by a dedicated desktop amplifier.
• 456g Weight (Excluding Cable): Substantial for an open-back planar design, reflecting its magnesium aluminum alloy build.
• 4.0N±0.3N Earpad Pressure: A clamping force tuned for long listening sessions.

Buyers Guide

Who This Is For

• The Dedicated Home Listener: An open-back planar headphone built for a quiet, amp-driven setup.
• The Amp Owner: Listeners with a desktop DAC/amp capable of the FT5's full 2000mW power input.
• The Detail-Oriented Listener: Two earpad materials let you fine-tune the sound without separate purchases.

Ideal Use Case

• Home Listening Rooms: Where an open, accurate soundstage is the priority.
• Desktop Setups: Paired with a capable headphone amplifier for full control over its planar driver.
• Critical Listening Sessions: For focused listening in a quiet, dedicated space.

What To Pair It With

• A Desktop Headphone Amplifier: Ideally one that can supply close to the FT5's 2000mW maximum power input.
• A Balanced DAC or Source: To use the 4.4mm audio plug option.
• Lossless or Hi-Res Source Material: To make full use of the 7Hz-40kHz frequency response.

Alternative Options

The FT5 is an open-back flagship built for a dedicated amp-driven setup. If you want a similar open-back planar design at a lower price point, the FiiO FT1 Pro is a more accessible option in the same lineup; if you need a closed-back headphone instead, the FT1 or FT13 are both wired closed-back alternatives.