Don't miss out these FREE items! Check it out !(Pls read the rules carefully!)


Out Of Stock FiiO AM3D - AM3D

FiiO AM3D 3.5mm SE+4.4mm Balanced THX AAA Amp Module for FiiO Q5/X7


Fully Balanced THX Framework Earphone Amplifier Module – AM3D

THX Certified

THX AAA-78 Technology

3.5mm Single end+4.4mm balanced

First THX certificated earphone amplifier module by America

AM3D is the world’s first THX certified standalone earphone amplifier, it means that the AM3D really meet THX AAA technical requirement. THX AAA series modules have more excellent audio performance and output efficient at the same power supply environment, make you can enjoy the high quality and low distortion voice by you own.

Fully balanced earphone AMP framework, adopt 2 set of THX AAA-78 technology

AM3D module base THX AAA-78 technology to implement the output function between 3.5mm single end and 4.4mm balanced. The features of the technology as following

Use double THX AAA-78 module to consist the fully balanced earphone AMP framework

THX has the feedforward error correction technology with patent leads to more low crosstalk and distortion, which make listening experience more realistic and immersive.

0.5% high precision thin film resistors

8 op amp

4-way standalone power supply

2 layer PCD isolation design

The other components of around AMP were carefully chosen, not only enhance the output ability, but also lead to the more excellent voice and stable performance.

Exquisite design and process

Adopt fully CNC aluminum alloy housing to create a seamless look, and strictly anodizing and coloring process making the minimum color difference.

Index comparison between AM3D and AM3B

Under the same test conditions, AM3D has higher SNR and separation, lower distortion and ground noise than AM3B.


Balanced Output(4.4mm)

Output power:




Frequency response:5Hz-75KHz(-3dB)

Output Impedance:<1.5 Ω(32Ω load)


Channel separation>110dB(1KHz)


Peak output Voltage>11.8Vp-p

Max output Current>130mA

Drive ability16-300Ω

Noise floor<5uV(A-Weighted)

Single end Output(4.4mm)

Output power




Frequency response:5Hz-75KHz(-3dB)


Channel separation>75dB(1KHz)


Peak output Voltage>6.2Vp-p

Max output Current>130mA

Drive ability16-150Ω

Noise floor<4uV(A-Weighted)

Device change to new voice, it is suitable for detachable earphone AMP module product

Pair AM3D with Fiio X7/ X7 Mark II/ Q5/ Q5s to feel endless possibility of listening experience.

Write a review

Note: HTML is not translated!
    Bad           Good

Due to the impact of the COVID-19 pandemic, global international shipping will delays. The delay at our Hong Kong post office is very serious, so we have changed to other fastest or most efficient international shipping. Now the normal estimated delivery time may be delayed by about 1-2 weeks. In some countries where is higher free-tax rate, we will provide free courier service as much as possible.

Free Shipping

All listed items will be shipped though Registered Airmail with tracking number if there is no extra shipping method option listed or shipping description in the product page.

Economy shipping: Will be shipped without tracking number.

Registered Airmail : Will be shipped via such as Hong Kong post , Deutsche Post , Netherlands Post , Singapore Post, you can leave us a message if you have any requirement about the shipping method .

It will be shipped via Hong Kong Post by default, Europe countries can choose to be shipped via Deutsche Post or Netherlands Post, it is also FREE, pls leave us a message if needed.

Express service: Will be shipped via DHL/EMS/UPS/FedEx

  • Views: 10206
  • Brand: FiiO
  • Product Code: AM3D
  • Availability: Out Of Stock
  • $179.00

Available Options

Tags: FiiO AM3D, 4.4mm