SKU: 23402601074

FiiO FH15 In Ear Monitor

Sale price$11205.00 Regular price$12450.00
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Description

FiiO FH15 In Ear MonitorDescription Features 1 dynamic 3 balanced armature drivers hybrid design 10mm carbon based diaphragm dynamic driver Custom Knowles ED 30262 for mids Two Knowles RAD 33518 for treble CNC aluminum alloy construction Turbo patented design for enhanced bass, more robust and deeper lows Notch filter technology for smoother treble 3 tuning filters included 152 wires silver plated monocrystalline copper cable FiiO HS18 ear tips Newly developed 10mm dynamic

Description

Features

  • 1 dynamic 3 balanced armature drivers hybrid design
  • 10mm carbon-based diaphragm dynamic driver
  • Custom Knowles ED-30262 for mids
  • Two Knowles RAD-33518 for treble
  • CNC aluminum alloy construction
  • Turbo patented design for enhanced bass, more robust and deeper lows
  • Notch filter technology for smoother treble
  • 3 tuning filters included
  • 152 wires silver-plated monocrystalline copper cable
  • FiiO HS18 ear tips

Newly developed 10mm dynamic driver with carbon-based diaphragm

The FiiO development team chose to use carbon-based materials for the dynamic driver diaphragm, , which allows for excellent transient performance. Carbon’s light weight, strong rigidity and high internal resistance means that the dynamic driver can quickly start and stop movements when responding to changes in the input signal. The high internal damping of the thousands of stacked and woven cross-fiber filaments of the carbon-based diaphragm means that the edge and the middle of the diaphragm can move together in the same direction quickly - minimizing breakup of the driver that results when different parts of the driver do not move in synchronization. This results in less distortion and ultimately clearer sound. 

Custom Knowles BA drivers as if you were at the concert

For mid frequencies, the FH15 employs the custom Knowles ED-30262 BA drivers. These drivers work in conjunction with specially placed tuning holes in the shell of the FH15 which allows for lusher vocals and a more musical sound.

Treble is handled by 2 Knowles RAD-33518 BA drivers, which are capable of high treble resolution and capture every last detail in the music, for a truly airy sound. These drivers ensure that you get a listening experience as if you were there with the performing artists.

Custom notch filter richer sound for more pleasant listening

"For multi-driver hybrid earphones, combining them properly requires one to not only look at the drivers as a unit but also independently. We first tuned each driver separately as if they were on their own, and then scientifically combined the drivers together. This methodical process allowed us to reach our sonic goals for the FH15." 

The notch filter is specifically custom-made for the FH15 and gives it its distinctive sound:

A Helmholtz resonator is designed to work with the mid-frequency ED drivers. When the sound wave is at a particular frequency that the Helmholtz resonator is designed to work with, the volume of sounds with this frequency is enhanced as the resonator concentrates and resonates that frequency.

When looking at the frequency response curve, it can be seen that the response between 1 kHz and 4kHz has been improved, resulting in denser-sounding mids giving vocals and instruments more realism without sounding thin.

Additionally, the resonator is connected to a thin opening to eliminate any unwanted resonance peaks and overlapping frequencies produced by the different drivers, in order to achieve better coherency among the drivers while also eliminating sibilance. This is the notch filter technology employed in the FH15.

S.Turbo patented design

Scientific HiFi with optimized frequency response

Balance between bass, mids, and treble as well as clarity are the ideal sound goals of many audiophiles, but this is easier said than done with multi-driver hybrid IEMs. This is because the multiple drivers naturally produce frequencies that overlap and interfere with each other. Thus, crossovers that divide the frequencies to be produced between the drivers are needed in order to achieve clear, coherent sound.

Thus, the RC circuit design is used to manage the crossover in the higher frequencies, with the treble driver with the higher resonant frequency being used as the high-pass filter. For managing crossover of the lower frequencies, the traditional low-pass filtering LC circuit requires components that take up too much space in the naturally small in-ear monitors.

Come, let me be in charge of the sound

Interchangeable sound filters

3 pairs of audio filters are included, each pair allowing for a different sound depending on the density of materials within the filter:

Red filter—— enhanced bass, for a bold sound

Black filter—— balanced sound, transparent and clear

Green filter—— exquisite treble, highly resolving

*Green filters are pre-installed, the other filters are on the included storage sheet

Specifications

Wearing style: Over-the-ear IEM

Shell construction: Aluminum alloy

Dynamic driver: 10mm carbon-based diaphragm (low frequencies)

BA driver:

               Knowles RAD-33518*2 (treble)

               Knowles ED-30262 (mid frequencies)

Frequency response: 10Hz-40kHz

Impedance: 16 Ω @ 1kHz

Sensitivity: 112dB/mW@1kHz

Cables: 152 wires total high-purity silver-plated monocrystalline copper

Cable length: About 1.2m

Unit weight: About 6.6g (excluding cable)

Accessories

Item

Notes

3.5mm swappable plug*1

Pre-installed

4.4mm swappable blug*1

 

Treble filter*2 (green ring)

Pre-installed

Balanced filter*2 (black ring)

 

Bass filter*2 (red ring)

 

MMCX tool*1

 

Carrying case HB1*1

 

Cleaning brush*1

 

HS18 ear tips*3 pairs (SML)

 

Balanced ear tips*3 pairs (SML)

M size pre-installed

Vocal ear tips*3 pairs (SML)

 

Bass ear tips*3 pairs (SML)

 

Dual-flange ear tips*2 pairs (M)

 

Foam ear tips*2 pairs (M)

 

Manual*1

 

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SKU: 23402601074

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Alison Lindley
Waukegan, US
★★★★★ 5
Great Seller and Product
Size: 2.32 Pound (Pack of 1), Style: New
Wonderful customer service!! I needed to refund as I ordered by mistake, and they refunded right away!! Will order again from this seller.
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Reviewed in the United States on March 26, 2026
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Public Service Announcement
Waukegan, US
★★★★★ 5
Wow. This book takes time to read!!
Format: Hardcover
Ordered The Unseen Realm (Expanded Edition) and it turned out to be one of the more thought-provoking reads I’ve come across on biblical theology. What stood out most is how much it stretched my thinking on the heavenly council. The way the author walks through Scripture and builds that framework forces you to slow down and reconsider passages you may have read many times without catching the broader context. It’s detailed, but not in a way that feels inaccessible. There’s a lot of depth here, especially if you’re willing to follow the argument and check the references. It doesn’t just make claims—it works through them. I didn’t agree with every conclusion, but that didn’t take away from the value. If anything, it pushed me to think more carefully and engage the material at a deeper level. Compared to other books in this space, this one stands out for how it ties together Old and New Testament themes in a more cohesive way. For the price, it’s a great value. There’s a lot of substance here, and it’s the kind of book you’ll likely revisit rather than read once and move on. If you’re interested in the supernatural framework of Scripture and are open to having your assumptions challenged, this is a strong read.
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Reviewed in the United States on April 19, 2026
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fitzalling
New York, US
★★★★★ 5
Eye-opening Exposition of the Bible
Format: Paperback
I have the paperback which is 387 pages, plus Acknowledgments and Index. The book is well-written. I am a Christian and have read the Bible many times. Dr. Heiser's exposition on portions of the Bible were not something I had encountered before. I'll let Dr. Heiser speak for himself: "My goal is simple. When you open your Bible, I want you to be able to see it like ancient Israelites or first-century Jews saw it, to perceive and consider it as they would have. I want their supernatural worldview in your head." Pg. 13. Genesis 6:1-5, Psalm 82, Deuteronomy 32 and other Biblical passages, including New Testament passages reflect a worldview that at least to me was unfamiliar. His approach to exegesis of the Bible seems orthodox to me. Once again, I'll let Dr. Heiser speak for himself: "I still believe in the uniqueness of the God of the Bible. I still embrace the deity of Christ." Pg. 13. Nevertheless, looking at the Bible through this worldview is, for me, deeply affecting and not in a negative way. The existence of a heavenly host, not all of which honor God, God's desire for an Eden even after the failure of the first Eden, and three rebellions, not just one, all based on divine Scripture, were deeply educational and enlightening to me. The author argues for his points carefully and cites numerous scholarly treatises to support his arguments. The book also makes connections within the Bible to connect various passages, which a first-century Jew or Christian, assuming some literacy, would have recognized that a 21st century Christian, such as me, completely misses. The cosmic geography idea is not something I have encountered before. The book also provides background on the interpretation of Hebrew words and the author is careful to focus the range of acceptable interpretations. Elohim, in particular, gets careful exposition. If the topic interests you, I recommend the book highly. If you'd like to try out the late Dr. Heiser's thoughts first, he has a number of YouTube videos running from 15 minutes to 1+hour in length for you to watch.
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Reviewed in the United States on October 6, 2025
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Benjamin P
Carnegie, US
★★★★★ 5
Great Depth, Beautiful Edition.
Format: Hardcover
The deluxe hardcover is gorgeous, with art on the inside of the cover and diagrams and footnotes galore. I will say the footnotes get pretty deep, almost as many of them as there is "normal" text. But very, very well done deluxe anniversary edition. The content blows me away, and like Heiser says, I'll never read my Bible the same way again. Wouldn't recommend this book to most people, as sometimes I had to go back and re-read a passage, or got done with a footnote that was several paragraphs long and had to remember what the text was talking about before I got sidetracked by the footnote. But very glad I read it, very glad I own it. Also comes with a free digital download (though locked to their free app, Logos).
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Reviewed in the United States on March 8, 2026
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Amazon Customer
San Leandro, US
★★★★★ 5
The best book so far from Dr. Michael Heiser!! A MUST-HAVE!!
Format: Paperback
This book is a must have! Dr. Michael Heiser was a great scholar that gave truth to all he taught. His book is really filled with good in depth information where you get more understanding with what you read from Scripture. It gives great detail explanation of many topics and references to where you can look into Scripture. There's many footnotes in it as well from him. He has many different books written and I think this is his best. So YES this is a must have and you should get "The Unseen Realm" from Dr. Michael Heiser.
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Reviewed in the United States on February 24, 2026

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