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Used / open-box FiiO FD15 IEM reference image

Used / Open-Box FiiO FD15 IEM

Reference price $119.00

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 FD15 is an IEM for compact in-ear listening with portable audio gear. HiFiLoop uses this page as a focused model page for used / open-box private-quote requests.

Key features

  • Single dynamic-driver in-ear monitor tuned around a large 13.8mm driver platform.
  • Magnalium diaphragm and DLC gasket driver structure support the FD15's dynamic-driver design.
  • W-shaped gasket and 1.5T external magnet structure help improve effective diaphragm area and driver control.
  • Frontal acoustic prism and Tesla Valve bass-enhancement acoustic design support phase and bass tuning.
  • 316L stainless-steel shell and curved MMCX connectors support durability and wearing comfort.
  • Included Furukawa monocrystalline copper plus silver-plated copper cable uses 3.5mm / 4.4mm swappable plugs.

Key specifications

Product type Single dynamic-driver IEM
Driver 13.8mm dynamic driver
Diaphragm / gasket Magnalium diaphragm with DLC gasket and W-shaped gasket design
Magnetic structure External magnet structure with up to 1.5T magnetic flux density
Acoustic design Frontal acoustic prism and Tesla Valve bass-enhancement acoustic structure
Shell 316L stainless-steel shell
Connector Curved MMCX connector
Cable Furukawa monocrystalline copper plus Furukawa monocrystalline silver-plated copper braided cable
Cable structure 4 strands, each with 100 copper wires and 20 silver-plated wires, totaling 480 wires
Plugs / nozzles 3.5mm / 4.4mm swappable plugs and red / black swappable sound nozzles

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.