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Used / open-box FiiO K11 R2R Desktop R2R DAC/AMP reference image

Used / Open-Box FiiO K11 R2R Desktop R2R DAC/AMP

Reference price $149.00

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

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

Product overview

The FiiO K11 R2R is a Desktop R2R 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 compact desktop headphone systems.
  • FIIO-developed fully differential 24-bit R2R DAC uses precision resistor arrays.
  • NOS and OS modes support different R2R decoding presentations.
  • USB decoding supports high-resolution PCM and DSD playback paths.
  • 6.35mm single-ended and 4.4mm balanced headphone outputs support common desktop headphone cables.
  • Three gain levels, custom LCD display, RGB logo lighting, and line / pre-output modes support daily desktop use.

Key specifications

Product type Desktop R2R DAC/AMP
Hardware solution GD32F303RE SoC; FIIO-developed R2R DAC; SA9312L USB decoding; SGM8262-2 x2 amplifier
DAC architecture Four-channel fully differential 24-bit R2R DAC with 192 precision thin-film resistors
Modes NOS and OS decoding modes
Supported formats USB DAC up to 384kHz / 32-bit and DSD256
Outputs 6.35mm headphone output, 4.4mm balanced headphone output, RCA line / pre-output modes
Output power Balanced output up to 1300mW + 1300mW at 32 ohms under FIIO listed conditions
Gain / volume Three gain levels and three volume curves with NJW1195A electronic volume control
Display Custom LCD screen with sampling-rate, volume, gain, and output-mode status

A-Class confirmation guide

What is reviewed before a reference page moves forward.

These notes explain how lab checks, condition records, shipping boundaries, and sourcing requests are handled before manual confirmation.

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.