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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Fully operational. Shipping worldwide, on schedule.Customs & duties included in the price

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Fosi Audio Q4 DAC Headphone Amp for PC, Desktop Digital to Analog Audio Converter for Home Stereo Amplifier and Powered Speakers, PC-USB/Optical/Coaxial Inputs, 3.5mm Headphone/RCA Outputs

Product ID: 146629540

Details

Brand
Fosi Audio
Maximum Supply Voltage
5 Volts (DC)
Minimum Supply Voltage
5 Volts (DC)
Mounting Type
Tabletop Mount
Number of Pins
11

🎧Drives 16Ω-200Ω headphones

🔊24-bit/192kHz HD audio

🔌USB/Optical/Coaxial inputs

₩207597

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Sold byAmazon South KoreaDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

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Description

🎶 Elevate Every Beat — Your Desk’s New Audio MVP

TAILOR YOUR SOUND - Adjust bass and treble with smooth, premium metal knobs for a personalized listening experience.
COMPACT POWERHOUSE - Sleek, full-metal design fits anywhere while delivering low-jitter, crystal-clear audio.
READY OUT OF THE BOX - Includes all essential cables for quick setup—no extra purchases needed to elevate your sound.
HI FI AUDIO ZERO FUSS - Plug-and-play setup with no driver hassle—instant premium sound for your workspace or home theater.
VERSATILE CONNECTIVITY - Seamlessly switch between PC, TV, and stereo systems with USB, optical, and coaxial inputs.

The Fosi Audio Q4 is a compact, entry-level DAC and headphone amplifier designed for professionals seeking superior sound clarity. Supporting 24-bit/192kHz HD audio with USB, optical, and coaxial inputs, it drives headphones from 16Ω to 200Ω and outputs via 3.5mm and RCA. Its metal chassis ensures durability, while adjustable bass and treble controls let you fine-tune your audio. Perfect for desktop setups, home stereos, and powered speakers, it offers plug-and-play convenience with included cables and a 24-month warranty.

Specifications

ASIN	B07VDQQY95
Audio Output Mode	Stereo
Best Sellers Rank	#9,201 in Electronics ( See Top 100 in Electronics ) #10 in Headphone Amps #37 in Audio Component Amplifiers
Brand Name	Fosi Audio
Compatible Devices	Amplifier, Headphone, Speaker, Television
Customer Reviews	4.4 4.4 out of 5 stars (3,304)
Included Components	User Guide
Interface	Coaxial, Optical, USB
Item Dimensions L x W	3.9"L x 2.9"W
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	Tabletop Mount
Number of Channels	1
Number of Pins	11
Part Number	Q4
Smart Home Compatibility	Not Smart Home Compatible
Unit Count	1 Count
Warranty Description	24-month warranty

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₩207597

Duties & taxes included

In stock

Sold byAmazon South KoreaDelivered 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 South Korea.

Secure transaction

Trustpilot

TrustScore 4.5 | 7,300+ reviews

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