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FiiO Balanced Armature In-Ear Monitor Earphones with Six Drivers and Four-Way Crossover (Black)

  • mfr: FIIOFA9BLK
In Stock

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  • Free standard shipping

    *Orders placed before 3 PM EST Mon - Thur will ship the same day. Orders placed beyond these hours will be shipped the next business day. Exclusions apply. See shipping policy

  • Free Local Pickup

    Please call for store stock availability.

    Requests made before 2:30 PM EST can be available for next-day pickup. Learn more

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Product highlights

  • Black- colored earphones
  • 6 Knowles balanced armature IEM
  • 8-strand monocrystalline silver-plated copper cable
  • 4-way electronic crossover
  • 3 sound adjustment switches 6 Knowles BA
  • DLP 3D printing
  • 80.6mm ultra-long sound tube

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Free standard shipping included

FiiO Balanced Armature In-Ear Monitor Earphones with Six Drivers and Four-Way Crossover (Black)

The FiiO FA9 Earphones boast a sophisticated driver configuration, with the SWFK-31376 handling higher frequencies for extreme resolution, the EJ-33877 delivering powerful mid-frequencies in collaboration with Knowles, and the HODVTEC-31618 driver featuring dual woofers for dynamic and authoritative lower frequencies.
Custom Knowles EJ BA Driver
The FA9 marks the first time FiiO has employed Knowles EJ balanced armature drivers, commonly used among high-end IEMs. FiiO and Knowles collaborated to come up with the custom EJ-33877 driver for use in the FA9 for excellent mid-frequency performance with hauntingly realistic vocals.
80.6mm Ultra-Long Sound Tube
The sound tube acts as a low-pass filter that effectively filters out unneeded extra mids and highs from the drivers to ensure a seamless frequency response. The sound tube also ensures the mid-bass is smooth and clean while enhancing bass texture in general.
3 Sound Adjustments Switches 8 Possible Sounds
The FiiO FA9 offers versatile sound customization with its switch settings - S1 switch for impedance and sensitivity adjustment, S2 switch for treble preferences, and S3 switch for tailoring bass and mids according to your listening preferences.
Four-Way Crossover
The four-way crossover design has been applied so that each driver works perfectly in harmony with each other for seamlessly coherent low, middle, high, and ultra-high frequencies. With dynamic bass, crystal clear yet lush vocals, and extremely detailed yet pleasant treble, the FA9 will get you excited about your music again.
4th Generation DLP 3D Printing
Now in its 4th generation, the printing accuracy, efficiency, and curing uniformity have been significantly improved from the past iterations of DLP 3D printing. This allows the FA9 to have an extremely precise and robust structure that is fully optimized for audio which is difficult to achieve with traditional manufacturing methods.
8 Strands of Pure Audio Cable
The included 8-strand monocrystalline silver-plated copper cable gives you excellent sound quality out of the box, so you don’t have to worry about upgrading to a better cable.
Hi-Res Audio certified
The FA9 is certified by the Japan Audio Society to be capable of bringing you ‘Hi-Res Audio’ with quality far beyond those of CDs.


Driver Type Balanced armature
Earpiece Swivel No
Wearing Style Wired
LED Indicator No
Configuration Core
Wireless Charging No
Wired Connectivity
Cable Design Detachable
Wireless Connectivity
Multipoint Support No
Beamforming Support No


Customer Questions
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Returns are incredibly simple. Please log into your account, find your item you wish to return and follow the prompts to make a return. If you do not have an account, click here to find your order and make a return.
You will receive a full refund when you return an item in its original manufacturer’s packaging, undamaged and unmarked. If the item you are returning is priced at less than $35, you will be charged a 15% restocking fee. Please note you will not be refunded any shipping charges. 
You have 30 days to make a return. During the holiday season, from November 1 to December 31, we extend the return window to 60 days. 
If your order has been noticeably damaged in transit, we strongly recommend that you refuse delivery and notify us immediately. Claims for missing items or items damaged in transit must be made within 48 hours of delivery. If there is carrier damage, please contact [email protected] with your order number and a description of the damage. 
Oh no! Please contact our customer service team so we can resolve the issue immediately. You can call us on 1.800.221.0828, email us at [email protected], or send us a message here.  
We do not currently offer exchanges. Please return the item you purchased within 30 days and order what you’d like instead. 
If you ordered a kit, you must return all components and accessories to receive a full refund. 
If you ordered a product that included a free item, you must include the free item with your return. If not, your return will not be accepted and you will not receive a full refund. 
We currently only offer camera repairs at our Brooklyn store. The item must be dropped off and collected in person as we do not accept shipped items for repair. For more information, please call our Brooklyn store on 1.718.431.7900. 
Most items can be returned within 30 days for a full refund. Click here to read our full return policy. 

Shipping and Returns

Same Day Shipping

All orders placed by 4PM( EST), Monday through Thursday, and by 11AM (EST) on Friday, are shipped same day. Orders placed outside these times will ship the next business day. We do not ship internationally or to Puerto Rico, Guam and other US territories at this time. For more details click here.

Free Two-Day Shipping

We offer free expedited shipping on thousands of items within the continental USA (this does not include Alaska and Hawaii).

Flexible, Easy Returns

If you're not happy with your purchase for any reason, our flexible 30-day free return policy makes it easy to get a full refund. Click here to view our return policy.

Ratings and reviews

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FiiO Balanced Armature In-Ear Monitor Earphones with Six Drivers and Four-Way Crossover (Black) SKU: FIIOFA9BLK

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