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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Q4

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

💻Plug & play USB/Optical/Coaxial inputs

🔊160mW RMS power output

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Description

🎶 Elevate your desktop audio game—because your ears deserve the best!

EFFORTLESS SETUP - True plug-and-play—no drivers or apps needed, just pure sound
COMPACT DURABLE - Sleek full-metal shell fits perfectly on any desktop setup
AUDIOPHILE GRADE DAC - 24-bit/192kHz bit-perfect streaming with ultra-low noise
VERSATILE CONNECTIVITY - Seamlessly connects via USB, Optical, and Coaxial for all your devices
POWERFUL MINI AMPLIFIER - Delivers crisp 160mW RMS output for immersive sound

The Fosi Audio Q4 is a compact, high-performance DAC and headphone amplifier designed for professionals and audiophiles alike. Supporting 24-bit/192kHz bit-perfect audio via USB, Optical, and Coaxial inputs, it powers headphones from 16 to 200 ohms with 160mW RMS output. Its robust metal chassis ensures durability, while plug-and-play functionality guarantees hassle-free setup. Perfect for desktop use, it transforms your digital audio into rich, detailed sound, making it a must-have for anyone serious about audio quality.

Specifications

ASIN	B07VDQQY95
Audio Output Mode	Stereo
Best Sellers Rank	#24,144 in Electronics ( See Top 100 in Electronics ) #34 in Digital-Analog Converters
Brand Name	Fosi Audio
Compatible Devices	Headphones., Speakers
Country Of Origin	China
Customer Reviews	4.4 4.4 out of 5 stars (3,263)
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 Items	1
Number of Pins	11
Part Number	Q4
Unit Count	1.0 Count

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86345CFA

Duties & taxes included

In stock

Sold byAmazon Cote D' IvoireDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

Buyer Protection · Full refund if your order doesn't arrive as described.

Desertcart purchases this item on your behalf and handles shipping, customs, and support to Cote D' Ivoire.

Secure transaction

Trustpilot

TrustScore 4.5 | 7,300+ reviews

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1 month ago

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