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Used / open-box FiiO K7 BT Desktop DAC/AMP reference image

Used / Open-Box FiiO K7 BT Desktop DAC/AMP

Reference price $209.00

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 K7 BT 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 DAC and headphone amplifier for USB, coaxial, optical, line-in, and Bluetooth source systems.
  • Dual AK4493S DAC chips, XMOS XUF208 USB, and dual THX AAA 788+ amplification support desktop headphone use.
  • 6.35mm single-ended and 4.4mm balanced headphone outputs support common desktop headphone cables.
  • RCA line input and RCA line output support integration with other desktop audio components.
  • K7 BT supports FIIO Control functions for Bluetooth firmware, codec, and PEQ-related settings.
  • Front input, gain, and output controls support simple desktop operation.

Key specifications

Product type Desktop DAC/AMP
Hardware solution AK4493S x2 DAC; XMOS XUF208 USB; NJU72315 x2 volume IC; THX AAA 788+ x2 amplifier
Supported formats USB DAC up to PCM 384kHz / 32-bit and DSD256; coaxial up to PCM 192kHz / 24-bit; optical up to PCM 96kHz / 24-bit
Inputs USB-B, RCA line input, optical, coaxial, and Bluetooth on K7 BT
Outputs 6.35mm single-ended headphone, 4.4mm balanced headphone, RCA line output
Gain High / low gain
Recommended headphone impedance 16-300 ohms
Power supply DC 12V / 2A
Dimensions / weight About 120 x 168 x 55 mm; about 610 g
Single-ended output power Up to L+R >= 1220mW + 1220mW at 32 ohms

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.