DAC-Q4

Introducing the FOSI Audio DAC-Q4 Headphone Amplifier and 1m Fiber Optic Cable, a high-performance duo designed to deliver exceptional sound quality for your headphones.

The FOSI Audio DAC-Q4 is a versatile and powerful headphone amplifier that supports both 2.5mm and 3.5mm headphone jacks. It boasts a high-quality ESS9038Q2M Sabre DAC chip, which is renowned for its exceptional clarity and accuracy in converting digital signals to analog sound. This DAC is capable of supporting up to 32bit/384kHz PCM and DSD256 formats, ensuring that every detail of your music is faithfully reproduced.

The DAC-Q4 also features a low-jitter clock, which minimizes digital noise and enhances the overall sound quality. It has a gain switch, which allows you to select between two different gain levels, making it suitable for a wide range of headphone impedances. This amplifier is also equipped with a bypass mode, which disables the amplification circuit and allows the headphones to be driven directly by the source device.

The included 1m fiber optic cable is a premium accessory that completes the package. This cable utilizes optical transmission technology, which allows it to transmit signals without any electrical interference. It is made of high-quality materials, including a Kevlar reinforced outer jacket and 24-carat gold-plated connectors, ensuring durability and excellent signal transfer.

The FOSI Audio DAC-Q4 Headphone Amplifier and 1m Fiber Optic Cable are a perfect match for audiophiles and music enthusiasts who demand the very best in sound quality from their headphones. Whether you're listening to high-resolution audio files or enjoying your favorite music streaming service, this duo will deliver an unforgettable listening experience. So, upgrade your headphone setup today and discover the true potential of your music collection with the FOSI Audio DAC-Q4 and 1m Fiber Optic Cable.

Fosi Audio DAC-Q4 Headphone DAC and Amplifier with 1m Fiber Optic Cable: A Detailed Analysis

The Fosi Audio DAC-Q4 is a headphone DAC (Digital-to-Analog Converter) and amplifier that comes with a 1-meter fiber optic cable. This device is designed to deliver high-quality audio to headphones. In this analysis, we'll discuss the pros and cons of buying a Fosi Audio DAC-Q4 Headphone DAC and Amplifier with a 1m fiber optic cable.

1. High-Resolution Audio: The DAC-Q4 supports PCM up to 32bit/384kHz and DSD256. This means it can process high-resolution audio files, providing a more detailed and accurate sound.

2. Fiber Optic Connection: Fiber optic cables are immune to electromagnetic interference and can transmit signals without loss. This ensures that the audio signal remains pure from the source to the headphones.

3. Built-in Amplifier: The DAC-Q4 has a built-in headphone amplifier, which eliminates the need for an external amplifier. This saves cost and simplifies the setup process.

4. Compact Design: The device is compact and portable, making it an ideal choice for those who travel frequently.

5. Affordable: The DAC-Q4 is priced competitively compared to similar devices from other brands.

1. Limited Inputs: The device only has a single coaxial input. This may not be sufficient for users who want to connect multiple sources.

2. No Bluetooth Connectivity: The DAC-Q4 does not support Bluetooth connectivity, which may be a drawback for some users.

3. No Display: The device does not have a display, which makes it difficult to check the input source or the sampling rate of the audio file.

The Fosi Audio DAC-Q4 Headphone DAC and Amplifier with a 1m fiber optic cable is an excellent choice for audiophiles who are looking for a high-quality, compact, and affordable solution for listening to high-resolution audio files through headphones. The device's fiber optic cable ensures a pure audio signal, and its built-in amplifier eliminates the need for an external amplifier. However, the device's limited inputs and lack of Bluetooth connectivity may be a drawback for some users.

If you are an audiophile who values high-quality audio and is looking for a compact and affordable solution for listening to high-resolution audio files through headphones, then the Fosi Audio DAC-Q4 Headphone DAC and Amplifier with a 1m fiber optic cable is an excellent choice. However, if you require more inputs or Bluetooth connectivity, then you may want to consider other options.

Details:

Barely used for a home computer setup that didn last. Basically sat in a closet for over year.

specifications stereocompo:

• brand: Fosi Audio
• mpn: Dac-q4
• compatible brand: Universal
• color: Black
• year manufactured: 2020
• item length: 3.9 In
• type: Dac
• capacity: Dc 5v
• item height: 1.1 In
• features: Headphone Jack, Bass Control, Treble Control, Volume Control
• plug regional fitment: Us
• item weight: 0.5 Lb
• item width: 2.4 In

offer stereocompo:

• best offers: true
• options: ship-to-home
• started: june 11, 2026
• sold #: 6
• in stock #: 5
• availability: in stock
• prices: $38.00–$64.01
• item condition:
  • Used
  • Open box

returns stereocompo:

• policy: no returns

seller stereocompo:

• city: commerce, georgia
• # reviews: 1
• rating: 100.0%

general stereocompo:

• category: Electronics > Audio > Home Stereo Components

shipping stereocompo:

• class: standard
• type: calculated
• transit: 5-13 days
• carrier: usps
• service: usps ground advantage

payments stereocompo:

• credit card: discover
• other
• money order
• wallet: google-pay