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- USA
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Ships within 48 hours · Estimated delivery Jul 10 - Jul 15
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Description
FiiO New K3S Desktop Headphone Amplifier & USB DACTwo USB AUDIO modes Flagship grade PCM 384k DSD256 decoding RGB indicator light Dual headphone outs, dual digital audio outs ADC volume controlJust connect the new K3S to your computer via USB to instantly upgrade to high fidelity sound, and enjoy your music the way it was meant to be heard. Equipped with an XMOS USB receiver chip, the new K3 headphone amps is capable of decoding up to 384kHz 32 bit PCM and native DSD256 the same as many DACs costing
Two USB AUDIO modes | Flagship-grade PCM 384k/DSD256 decoding RGB indicator light | Dual headphone outs, dual digital audio outs ADC volume controlJust connect the new K3S to your computer via USB to instantly upgrade to high-fidelity sound, and enjoy your music the way it was meant to be heard. Equipped with an XMOS USB receiver chip, the new K3 headphone amps is capable of decoding up to 384kHz/32 bit PCM and native DSD256 – the same as many DACs costing much more.
The new K3's dual crystal oscillators ensure that any digital audio signals being fed into the DAC are exactly correct for further enhanced sound quality.
Hardware scheme
XMOS: XU208, DAC: ES9038Q2M, LPF: TI OPA1612, AMP: OPA926×2
Volume control
ADC analog potentiometer
Firm upgrade
XMOS edition supports upgrade via USB
Max sampling rate
384kHz-32bit/DSD256
Recommended headphone impedance
16~150 Ω
192kHz-32bit/DSD64 (coaxial)
96kHz-32bit (optical)
USB
USB Type-C (USB 1.0/USB 2.0)
Balanced headphone output port
2.5mm
Analog audio output port (LO)
Standard 3.5 mm
Headphone output port
Standard 3.5 mm
Shipping Notes
- Free Standard Shipping on $100+ Orders to the USA.
- Except Preorder products are shipped in 48 hours.
- Delivery to the USA:
- Standard Shipping : 3-10 business days
- If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
- We offer a 30-day return/exchange service after receiving.
- Final sale items are not eligible for returns or exchanges.
- To process your return/exchange, please contact us at [email protected]
- Please click here for more details>>> Return & Exchange Policy
4.8 ★★★★★
Based on 2124 reviews
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Product Reviews
★★★★★ 5
Durable Speaker Wire
Size: 100-Foot, Style: 14-Gauge
Durable and difficult (good thing) to strip off the outer sleeve. Very good speaker wire.
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Reviewed in the United States on May 14, 2026
★★★★★ 5
Exceeded my expectations in every way.
Size: 200-Foot, Style: 14-Gauge, Size: 200-Foot, Style: 14-Gauge
Great quality solid copper cables. None of the local stores, such as Walmart or Autozone had Any real copper cables at all. All offerings were CCA dual-conductor cables that are essentially 95% aluminum. 2/3rd of available options had Packaging that didn't openly disclose this fact. It took time researching each "high-performance", or "professional grade" audio cables they had in stock. Perhaps, there's no regulations that require manufacturers to to make any reference clarifying that the product isn't pure copper. It was surprisingly misleading. Amazon Basic branded cables are as good as the best cables you cables you can buy elsewhere online. 14 Gauge us about as thick as you could reasonably use at home without it becoming a major annoying mess. Great price as well. Made in Vietnam - is just the icing on the cake. Ordered the "used" option. Cables were brand new, the coil was slightly banged up in shipping and dusty, thus the 15% discount
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Reviewed in the United States on February 23, 2026
★★★★★ 5
Durability
Size: 100-Foot, Style: 14-Gauge
Great wire. Works perfectly
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Reviewed in the United States on April 3, 2026
★★★★★ 5
Not cheap but also, not cheap!
Size: 2 Gauge Cable, Color: 20 ft Black + 20 ft Red
Came on time, as described and appears to be solid quality.
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Reviewed in the United States on May 14, 2026
★★★★★ 5
Quality & Durability
Size: 2 Gauge Cable, Color: 20 ft Black + 20 ft Red
If you need cable for your power supply and ground. Look no further. This is quality from the copper to the insulation. I wasn't sure about buying wires off amazon but this is my new favorite. Done several trucks and they are holding up just fine.
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Reviewed in the United States on April 1, 2026