Used / Open-Box FiiO K19 Desktop DAC/AMP

Reference price $959.00

Reference price is for price anchoring only. Final quote depends on condition, accessories, version, stock, and destination.

Help Me Find Gear

Unit details confirmed before offer
Lab-inspected before dispatch
DOA support and repair path available

Product overview

The FiiO K19 is a Desktop DAC/AMP for connecting digital sources to headphones or compact audio systems. HiFiLoop uses this page as a focused model page for used / open-box private-quote requests.

Key features

Flagship desktop DAC and headphone amplifier for USB, coaxial, optical, HDMI, HDMI ARC, and Bluetooth decoding.
Dual ESS ES9039SPRO DAC architecture with 8-channel THX AAA 788+ headphone amplification.
31-band high-precision PEQ supports detailed tuning on compatible computer and mobile control paths.
Balanced and single-ended headphone outputs plus XLR and RCA line outputs support flexible desktop systems.
AC or DC power support and an ultra-thin die-cast aluminum chassis help it fit compact desktop layouts.
High-power balanced output is intended for demanding headphones while also supporting preamp and line-output roles.

Key specifications

Product type	Desktop DAC/AMP
DAC architecture	Dual ESS ES9039SPRO
Amplifier	8-way THX AAA 788+
USB / Bluetooth	XMOS XU316 USB; QCC5125 Bluetooth decoding
Working modes	USB DAC, coaxial decoding, optical decoding, HDMI decoding, HDMI ARC decoding, Bluetooth receiving
Supported formats	USB decoding up to 768kHz / 32-bit, DSD512 Native, and MQA
Outputs	4.4mm and XLR4 balanced headphone; 6.35mm headphone; XLR3 balanced line; RCA line
Balanced output power	Up to L+R >= 8000mW + 8000mW at 32 ohms, ultra high gain mode
Dimensions / weight	About 250 x 225 x 36.7 mm; about 1800 g
Power supply	AC 100-240V 50/60Hz or DC 15V / >=3A

01 / Lab check

Pre-Listing Lab Check

Function and condition are checked before confirmation.

02 / Condition and kit

Condition & Kit Recorded Separately

Condition is not a shortcut for every detail.

03 / Request details

Details to Share

Send the details needed for review.

04 / Sourcing path

Manual Confirmation & Sourcing Path

Start the request before confirmation.

What this listing means

This is a used / open-box reference page for this model. The exact unit, included kit, timing, and support terms are confirmed before payment.

Before you make an offer

Check the exact unit photos and condition notes
Confirm included accessories and version details
Use the final quote as the decision point

Inspection & condition

Function, cosmetics, accessories, and known limitations are reviewed for the exact unit before dispatch.

Shipping & support

Processing is normally 3-5 business days after confirmation. International delivery is commonly 7-15 days; DOA and repair support are confirmed by destination.

What does Reference price mean?

It is a price anchor for comparison. It is not the final quote.

Is this exact unit ready to ship?

Not from this page alone. HiFiLoop confirms the exact unit and timing before payment.

Can HiFiLoop help me find another unit?

Yes. Share the target model, preferred condition, budget range, and destination so HiFiLoop can look for a suitable unit.

Need confirmation

Confirm the exact unit before the final decision.

Send an offer, sourcing request, or availability check when you want exact-unit photos, accessories, condition notes, and quote details.