Used / Open-Box FiiO K13 R2R Desktop DAC/AMP

Reference price $249.00

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 K13 R2R 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

Desktop R2R DAC and headphone amplifier for USB, coaxial, optical, and Bluetooth receiving modes.
FIIO-developed fully differential 24-bit R2R DAC architecture supports NOS and OS listening modes.
XU316 USB decoding and Bluetooth 5.4 reception support desktop and wireless source use.
4.4mm balanced and 6.35mm single-ended headphone outputs support a wide headphone range.
RCA single-ended and XLR3 balanced line outputs support integration with compact audio systems.
1.1-inch LCD, FIIO Control support, PEQ, MQA full decoding, and IR remote support improve desktop operation.

Key specifications

Product type	Desktop DAC/AMP
DAC architecture	FIIO-developed R2R DAC
SoC / USB	ESP32-S3; XMOS XU316 USB decoding
Amplifier	OPA1642 x2 plus TPA6120A x2
Working modes	USB DAC, coaxial decoding, optical decoding, Bluetooth receiving
Supported formats	USB up to 384kHz / 32-bit and DSD256; coaxial up to 192kHz / 24-bit and DSD64; optical up to 192kHz / 24-bit
Bluetooth	Bluetooth 5.4 receiving with SBC, AAC, and LDAC
Outputs	6.35mm headphone, 4.4mm balanced headphone, RCA line, XLR3 balanced line
Balanced output power	Up to L+R >= 2400mW + 2400mW at 32 ohms, high gain
Dimensions / weight	About 210 x 188 x 42 mm including feet; about 980 g

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.