FiiO's 4 Balanced Armature 1 Dynamic Driver IEMs FH7S Is Officially Released!

The FH7S channels the essence of the FH9 with not only a more-light body, but also an acoustic structure of 1 dynamic driver and 4 balanced armatures that democratizes plenty of cutting-edge technologies. Low frequencies are produced by the 2nd-gen FiiO-developed 13.6mm DLC driver, mid frequencies by the exclusively customized DFK BA drivers collaborated developed by Knowles and FiiO, and high frequencies by the Knowles SWFK-31736 BA driver. Based on the inner cavity design, tuning and crossover systems were redesigned to acquire smooth frequency response and resolving treble.

01. FH7S channels the essence of the FH9, but tailor-made for a 4 BA design

02. Featuring the 2nd-gen FiiO-developed 13.6mm DLC dynamic driver

03. Mid frequencies are handled by DFK driver customized by FiiO and Knowles, for exquisite vocals

04. Treble is provided by SWFK-31736 BA, with an airy and highly resolving sound


1. The music stage simply right in front of you, every music note floating around your ears

The FH7S employs FiiO's 2nd-gen semi-open design. This semi-open design incorporates FiiO's system of balanced pressure relief between the front and rear cavities. The result is that when the drivers push air when making sound, that air encounters less resistance - resulting in a smoother yet detailed sound, natural timbre, large soundstage, and pinpoint accurate imaging.


2. Comfort from 0.4mm, debuting the all-new FiiO silicone ear tips

The all-new FiiO silicone ear tips, HS18, are debuting for the first time in the FH7S. It chased for the best for every tiny detail. Picking optimal silicone materials, it is not only skin-friendly and durable, but also features merely 0.4mm thickness at the surface that touches the ears, allowing for better comfort and seal.


3. Cable upgraded for a new sound experience

The FH7S comes standard with cable consisting of 8 strands of 19 wires each – for a total of 152 wires of silver-plated monocrystalline copper all individually isolated from each other. Compared to the FH7, the twist-lock swappable audio plugs allow you to easily change between 3.5mm single-ended and 4.4mm balanced plugs as needed. More surprises are waiting for you.


Key features of the FH7S include:

--1 Dynamic 4 BA setup

--Large 13.6mm DLC dynamic driver

--4 custom Knowles BA

--Sci-Fi armor design

--Unique notch filter

--2nd-gen semi-open design

--8 strands totaling 152 silver-plated monocrystalline copper wires

--Twist-lock swappable audio plugs

--New FiiO silicone ear tips HS18

--Patented S.TURBO acoustic design

--3 tuning filters


*The FH7S is available on our AliExpress Official Store. Click the link below to take it home right away.


Best regards,

Guangzhou FiiO Electronics Technology Co., Ltd.