Can Q4 output analog stereo audio through both the 3.5mm headphone jack and the RCA red/white jacks at the same time?

Q4 will mute the RCA output when headphones are plugged in.

How do I connect Q4 to my computer with USB input?

Your other USB cables must support OTG function. -For iPhone: Use a USB B to Lightning OTG Cable. -For Android: Use a USB B to TYPE C Cable.

Where is the 0db position (Q4)?

The 0db position is at 12 o'clock on the knob.

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Fosi Audio Q4 - Mini Stereo Gaming DAC & Headphone Amplifier, 24-Bit/192 KHz USB/Optical/Coaxial to RCA AUX, Digital-to-Analog Audio Converter Adapter for Home/Desktop Powered/Active Speakers - Black

Fosi Audio Q4 - Mini Stereo Gaming DAC & Headphone Amplifier, 24-Bit/192 KHz USB/Optical/Coaxial to RCA AUX, Digital-to-Analog Audio Converter Adapter for Home/Desktop Powered/Active Speakers - Black

Product ID: 322368101

Details

Brand
Fosi Audio
Maximum supply voltage
5 Volts (DC)
Minimum supply voltage
5 Volts (DC)
Mounting type
Table
Number of pins
11

🎧Drives 16-200Ω headphones

💻24-bit/192kHz bit-perfect streaming

🔊160mW RMS power output

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S$118

Duties & taxes included

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Description

🎧 Elevate your desktop audio game—because your ears deserve the upgrade!

COMPACT DURABLE - Sleek full-metal shell fits perfectly on any desk setup while protecting your investment.
AUDIOPHILE GRADE SOUND - Equipped with Texas Instruments NE5532 op-amps for crystal-clear, low-noise audio performance.
PLUG PLAY SIMPLICITY - No drivers or apps needed—just connect and elevate your audio instantly.
VERSATILE CONNECTIVITY - Supports USB, optical, coaxial, and RCA inputs for seamless integration with all your devices.
CUSTOMIZABLE AUDIO CONTROL - Built-in bass and treble adjustments let you tailor sound to your exact preference.

The Fosi Audio Q4 is a compact, high-performance DAC and headphone amplifier designed for professionals and audiophiles alike. It delivers pristine 24-bit/192kHz digital-to-analog conversion with low noise and distortion, supports multiple input types including USB, optical, and coaxial, and drives headphones from 16 to 200 ohms. Its robust metal chassis and plug-and-play design make it an essential upgrade for anyone seeking immersive, studio-quality sound at their desk.

Specifications

ASIN	B07VDQQY95
Best Sellers Rank	#21,829 in Electronics ( See Top 100 in Electronics ) #28 in Digital-Analog Converters
Brand Name	Fosi Audio
Compatible Devices	Headphones., Speakers
Country Of Origin	China
Customer Reviews	4.3 4.3 out of 5 stars (3,168)
Interface	Coaxial, Optical, USB
Item Dimensions L x W	9.9L x 7.4W centimeters
Item Weight	430 Grams
Manufacturer	Fosi Audio
Material Type	Metal
Maximum Supply Voltage	5 Volts (DC)
Minimum Supply Voltage	5 Volts (DC)
Model	Q4
Mounting Type	Table
Number of Channels	1
Number of Pins	11
Part Number	Q4
Unit Count	1.0 Count

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