Overview

The FiiO FT1 Pro is an open-back, wired headphone built around a 95x86mm planar magnetic driver of FiiO's own design, using a 1μm thin diaphragm. It's rated at 20 ohms with a 7Hz-40kHz frequency response and sensitivity figures of 112dB/Vrms and 95dB/mW at 1kHz. The earpads use a breathable fabric surface with protein leather along the sides, and the headband runs on steel slides with a suede contact surface. FiiO includes two cables, a 3.5mm single-ended and a 4.4mm balanced, both built from 392-wire, 24AWG conductors, along with a 3.5mm to 6.35mm adapter and a storage bag.

Simcoe Audio Video Insight

Planar magnetic drivers spread their driving force evenly across the whole diaphragm rather than pushing from a single point like a typical dynamic driver, which is part of why the FT1 Pro can reach a 7Hz low end while staying open-back for a wider, more natural soundstage.

• 95x86mm planar magnetic driver with a 1μm thin diaphragm
• Open-back design for a spacious, natural soundstage
• Two cables included: 3.5mm single-ended and 4.4mm balanced

Best for the FiiO FT1 Pro: run it from a dedicated headphone amplifier rather than a phone's headphone jack — a 20-ohm planar driver benefits from more current than most portable sources can supply cleanly.

More Details

Why It Wins

• 95x86mm Planar Magnetic Driver: A FiiO-developed driver with a 1μm thin diaphragm for low distortion and fast transient response.
• Open-Back Design: Built for a wide, natural soundstage rather than isolation.
• Two Included Cables: A 3.5mm single-ended cable and a 4.4mm balanced cable, both 392-wire 24AWG construction.

What Makes It Different

Most headphones in this price range use a single dynamic driver. The FT1 Pro's planar magnetic design spreads the driving force evenly across the diaphragm, which keeps distortion low and gives it a 7Hz-40kHz frequency response wider than most dynamic-driver headphones at this price.

Technical Highlights

• 20-Ohm Impedance: Low for a planar design, though it still benefits from a dedicated amplifier.
• Fabric and Protein Leather Earpads: A breathable textile surface paired with protein leather along the sides.
• Steel Slide Headband with Suede Contact: Built for a secure, adjustable fit.

Buyers Guide

Who This Is For

• The Dedicated Home Listener: An open-back planar headphone built for a quiet listening space.
• The Upgrading Audiophile: A step up from entry-level dynamic-driver headphones into planar magnetic territory.
• The Amp Owner: Listeners who already have a headphone amp and want a driver that can make use of it.

Ideal Use Case

• Home Listening Rooms: Where an open, accurate soundstage is the priority.
• Desktop Setups: Paired with a headphone DAC/amp for near-field listening.
• Critical Listening Sessions: For focused, distraction-free listening in a quiet space.

What To Pair It With

• A Dedicated Headphone Amplifier: To drive the planar driver properly, ideally with a balanced output for the included 4.4mm cable.
• A DAC or Digital Audio Player: With a clean single-ended or balanced output.
• Lossless or Hi-Res Source Material: To make full use of the 7Hz-40kHz frequency response.

Alternative Options

The FT1 Pro is an open-back design built for quiet, dedicated listening spaces. If you need a closed-back headphone for use around others or on the go, the FiiO FT1 in the same lineup uses a closed-back dynamic driver instead.