FiiO New K3 (2021) Desktop Headphone Amplifier & USB DAC
- Two USB Audio modes
- Flagship-grade PCM 384k/DSD256 decoding
- Power supply via the USB port: Convenient and safe
- High-performance discrete built-in ESS ES9038Q2M DAC chip with high SNR and low distortion
- OPA926x2 as the headphone amplifier chip with low distortion and noise
- TI OPA1612 as the LPF to drive the line output
- Lineout, single-ended / balanced headphone output, coaxial, optical output connections
- High-performance discrete headphone drive and circuit protection
- Built-in power filtering and switching circuit for purer audio output
- Gain and bass swtiches to meet different listening requirements
- Dual headphone outs, dual digital audio outs
- ADC volume control
Product Availability | Discontinued |
Product Type | DAC (Digital-Analog Converter), Amplifier (Headphone) |
Style/Type | Desktop |
Features | Line-out, High-Res Audio Certified |
Connectivity | Fully Wired |
DAC | ESS Sabre ES9038Q2M |
Op-Amp / Amplifier | Texas Instruments OPA926×2 *Dual [Driver]; Texas Instruments OPA1612 [Low Pass Filter] |
Power Amplification Type | Solid State |
Sampling / Bitrate | 384kHz-32bit/DSD256 |
Frequency Response (Hz) | 192kHz-32bit/DSD64 (coaxial); 96kHz-32bit (optical) |
Signal-to-Noise Ratio (SNR) | ≥113dB |
Total Harmonic Distortion (THD) | ≤0.004% |
Max Output Power (mW / W) | 3.5mm headphone output: 220mW(16Ω), 120mW(32Ω); 2.5mm TRRS balanced headphone output: 320mW(16Ω), 200mW(32Ω) |
Mic for Calls/Communication | None |
Input Connectivity Options | USB Type-C (USB-C) [Data/Audio Signal] |
Output Connectivity Options | Optical TOSLINK (SPDIF), Coaxial (SPDIF), 3.5mm Stereo |
Colour | Black |
Product Weight (g) | 82g |
Additional Tech Specs | |
Warranty | - Warranty Not Applicable - |
If you're based in Singapore,
- spend $300 or more for free doorstep delivery1.
($250 for Silver/Gold/Platinum VIP members) - add a few more bucks, for delivery during the night/weekend, or quicker prioritised delivery options2.
- self-collection is possible at our Showroom, based in Ubi (nearest to MacPherson MRT). Find out where, and how to get to us here.
- and yes, you may arrange your own 3rd party logistics to pickup your purchases on your behalf.
GrabExpress, Lalamove, GoGoX, RydeSEND services are welcome.
View additional Terms & Conditions associated to local doorstep delivery service.
Friends from Overseas,
- we do ship internationally.
- shipping fees are calculated according to total gross actual or volumetric weight of all item(s) in cart, whichever higher.
- shipping fees will vary depending on international carrier(s)3, and will be displayed during checkout.
- do be aware of additional import tax/VAT that may apply.
Due to recent changes in U.S. trade regulations, additional tariffs are being imposed on products manufactured in China and imported into the United States. As many of our audio products are made in China, orders shipped to U.S. addresses may be subject to an added tariff charge at checkout, reflected as a "U.S. Import Tariff Surcharge". Please note that this surcharge amount is determined by U.S. import policies and may vary significantly depending on product categories and any future policy adjustments. These charges are necessary to ensure compliance with U.S. customs requirements and to allow us to continue serving our U.S. customers reliably. We strongly encourage you to review the total cost at checkout before placing your order.
View additional Terms & Conditions associated to international door to door shipping service.
1 Terms and condition do apply for free delivery. For more information, click here to view.
2 View our updated list of local delivery options.
3 View our updated list of international carriers.
No Reviews Available Yet. Leave Your Review
Product Availability | Discontinued |
Product Type | DAC (Digital-Analog Converter), Amplifier (Headphone) |
Style/Type | Desktop |
Features | Line-out, High-Res Audio Certified |
Connectivity | Fully Wired |
DAC | ESS Sabre ES9038Q2M |
Op-Amp / Amplifier | Texas Instruments OPA926×2 *Dual [Driver]; Texas Instruments OPA1612 [Low Pass Filter] |
Power Amplification Type | Solid State |
Sampling / Bitrate | 384kHz-32bit/DSD256 |
Frequency Response (Hz) | 192kHz-32bit/DSD64 (coaxial); 96kHz-32bit (optical) |
Signal-to-Noise Ratio (SNR) | ≥113dB |
Total Harmonic Distortion (THD) | ≤0.004% |
Max Output Power (mW / W) | 3.5mm headphone output: 220mW(16Ω), 120mW(32Ω); 2.5mm TRRS balanced headphone output: 320mW(16Ω), 200mW(32Ω) |
Mic for Calls/Communication | None |
Input Connectivity Options | USB Type-C (USB-C) [Data/Audio Signal] |
Output Connectivity Options | Optical TOSLINK (SPDIF), Coaxial (SPDIF), 3.5mm Stereo |
Colour | Black |
Product Weight (g) | 82g |
Additional Tech Specs | |
Warranty | - Warranty Not Applicable - |
No Reviews Available Yet. Leave Your Review

Calling All Audiophiles!
Experience Sound Rewards Today.
A reimagined shopping experience for our loyal customers awaits.