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Item #:
90309494
FiiO K9 PRO ESS DAC Desktop with high-end headphone amplifier
88% of respondents would recommend this to a friend
Item #:
90309494
TJS 17773
Price Details
Excluding Shipping & Custom charges ( Shipping and custom charges will be calculated on checkout )
*All items will import from UK
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In stock
Imported from UK store
QTY:
Order now and get it around Tuesday, October 27
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Low-frequency transformer ensures excellent sound quality with THX AAA 788+ chips and minimal interference between components. Six-stage audio circuit and partitioned layout ensure detailed and faithful audio reproduction.
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What Stands Out
High-Resolution DAC
Delivers exceptional audio clarity and detail with ESS Technology, ensuring an immersive listening experience for audiophiles seeking the best sound quality from their headphones.
Powerful Amplification
Features a robust headphone amplifier capable of driving even the most demanding headphones, making it ideal for serious music enthusiasts and professionals who require top-tier performance.
Versatile Connectivity
Offers multiple input options including USB, coaxial, and optical, ensuring compatibility with various devices while catering to diverse audio setups for ultimate convenience and flexibility.
Product Details
| Maximum Supply Voltage | 46 Volts (AC) |
| Mounting Type | Desktop |
| Number of Pins | 11 |
| Upper Temperature Rating | 50 Degrees Celsius |
| Interface | 4.4mm balanced, Auxiliary, Optical, RCA, XLR |
| Number of Channels | 8 |
| Audio Output Mode | Balanced |
| Material | Metal |
| Brand | FiiO |
| Compatible Devices | Smartphones, Tablets, Computers, Audio Players, Bluetooth Devices |
| Manufacturer | FiiO |
| Global Trade Identification Number | 06953175710240 |
| Item Weight | 454 g |
| Model Number | K9ProESS |
| Manufacturer Part Number | K9ProESS |
Who Should Buy?
-
Audiophiles
Perfect for those who demand high-quality sound reproduction with rich detail and clarity from their music.
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Home Studio Users
Ideal for musicians and sound engineers requiring precise audio monitoring and conversion for recording and mixing.
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Gaming Enthusiasts
Enhances gaming audio with immersive soundstage and low latency, providing a competitive edge in gaming experiences.
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Casual Listeners
Not suitable for users who listen to music casually and do not need high-end audio equipment.
Product Description
Have any Query? Chat with us
Customer Questions & Answers
-
Question:
What is the role of the low-frequency transformer in the sound quality?
Answer: The low-frequency transformer optimizes the power supply to ensure excellent sound quality. -
Question:
How many stages does the audio circuit of the product feature?
Answer: The product features a mammoth 6-stage audio circuit for detailed audio reproduction. -
Question:
How does the partitioned layout aid in audio signal integrity?
Answer: The partitioned layout separates power supply and signals, maintaining audio signal integrity.
FiiO Headphone Amplifiers K9ProESS Editorial Review
FiiO K9 PRO ESS DAC Desktop With High-end Headphone Amplifier offers an impressive audio experience with its balanced audio output mode and robust build quality. Users have highlighted its great sound profile with tight bass, clear midrange, and detailed treble. The device features multiple interfaces including 4.4mm balanced, RCA, and optical connections, providing versatility for different setups. It also supports Bluetooth connectivity, allowing it to be controlled via a companion app, which adds to its user-friendly design. While some have noted concerns about visibility on the front panel, the overall feedback suggests it's a worthy competitor in the high-end audio market.
Customer Reviews & Ratings
39 customers ratings
-
5 Star
61%
-
4 Star
13%
-
3 Star
7%
-
2 Star
7%
-
1 Star
12%
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Pros
- Outstanding sound quality across all frequencies
- Balanced audio output enhances clarity
- Versatile connectivity options available
- User-friendly companion app for Bluetooth
- Solid and premium metal build quality
Cons
- Front panel labels could be improved for visibility
Platform Trust & Buyer Confidence
JK
Jasmin
Verified buyer
“Great products and very good service: very easy and very fast international delivery.”
9 September 2026 · via Trustpilot
AG
Anke
Verified buyer
“Wonderful online shopping experience, smooth transaction from the start. Payment method works conveniently and delivery is unexpectedly fast and reliable. You go the extra mile for service. What makes this even more amazing, you deliver to Namibia. I will remain a happy Ubuy customer and will increase my purchases for sure! Thank you!”
10 September 2026 · via Trustpilot
H
Hazel
Verified buyer
“Very easy to find the products what you need, and so fast delivery, that’s why I highly recommended to others costumers to used ubuy.”
10 September 2026 · via Trustpilot
O
Opaleye
Verified buyer
“I received exactly what I ordered I was skeptical about your site because that was my first time to order. But the order came timely and neatly packaged. I was not disappointed. Thank you.”
11 September 2026 · via Trustpilot
AC
Adele
Verified buyer
“Easy to find and order what you want on the website. Delivery is quick to the UK”
8 September 2026 · via Trustpilot
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TJS 17773
Order now and get it around Tuesday, October 27
This item is not restrict in my country.(Please click on above link if this item is not restrict in your country, So our team will review and allow.)
QTY:
Secured transaction
PCI DSS compliant and ISO 27001:2022 certified, with encrypted payments and full buyer protection on every order.
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Fastest cross-border delivery
Features & Benefits
- Special attention paid to power supply optimization
- THX AAA 788+ chips for exemplary details and dynamics
- Fully differential, fully balanced design for minimal interference
- Six-stage audio circuit for detailed music reproduction
- Partitioned layout for integrity of audio signal
- RGB indicator lights for visual feedback on sampling rate
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