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.

Q4 | Desertcart Macau

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Fully operational. Shipping worldwide, on schedule.Duty & taxes paid at delivery

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MOP$1048

Duties & taxes included

In stock

Sold byAmazon MacauDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

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Description

🎧 Elevate Every Beat: Your Sound, Your Rules.

COMPACT POWERHOUSE - Sleek full-metal design packs 24-bit/192kHz HD audio with low jitter, fitting effortlessly on any desk or shelf.
COMPLETE SETUP KIT - Includes all essential cables for a smooth, out-of-the-box experience—upgrade your sound without the wait.
CUSTOM SOUND TUNING - Fine-tune your audio vibe with premium metal bass and treble knobs—because your ears deserve personalized perfection.
PLUG PLAY SIMPLICITY - No drivers, no hassle—just instant HiFi sound that elevates your music, movies, and games in seconds.
VERSATILE CONNECTIVITY - Seamlessly switch between PC, TV, and stereo with USB, Optical, and Coaxial inputs for ultimate audio freedom.

The Fosi Audio Q4 is a compact, entry-level DAC and headphone amplifier designed for versatile use with PC, TV, and home stereo systems. It supports USB, Optical, and Coaxial inputs and outputs via 3.5mm headphone jack and RCA, driving headphones from 16Ω to 200Ω. Featuring adjustable bass and treble knobs, it offers customizable sound tuning with 24-bit/192kHz HD audio quality in a durable metal shell. Plug-and-play with included cables, it’s perfect for gamers, music lovers, and multimedia enthusiasts seeking immersive, tailored audio without breaking the bank.

Specifications

ASIN	B07VDQQY95
Audio Output Mode	Stereo
Best Sellers Rank	#12,099 in Electronics ( See Top 100 in Electronics ) #20 in Headphone Amps #56 in Audio Component Amplifiers
Brand Name	Fosi Audio
Compatible Devices	Amplifier, Headphone, Speaker, Television
Customer Reviews	4.4 4.4 out of 5 stars (3,366)
Included Components	User Guide
Interface	Coaxial, Optical, USB
Item Dimensions L x W	3.9"L x 2.9"W
Item Highlight	Desktop HiFi Audio DAC with Optical/Coaxial/USB Inputs, 3.5mm Headphone and RCA Outputs for Powered Speakers and Home Stereo
Item Weight	430 g
Manufacturer	Fosi Audio
Material Type	Metal
Maximum Supply Voltage	5 volts_of_direct_current
Minimum Supply Voltage	5 volts_of_direct_current
Model	Q4
Mounting Type	Tabletop Mount
Number of Channels	1
Number of Items	1
Number of Packs	1
Number of Pins	11
Part Number	Q4
Unit Count	1 Count
Warranty Description	24-month warranty

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MOP$1048

Duties & taxes included

In stock

Sold byAmazon MacauDelivered 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 Macau.

Secure transaction

Trustpilot

TrustScore 4.5 | 7,300+ reviews

Neha S.

Excellent communication throughout the order process. Product is perfect.

2 weeks ago

Farhan Q.

The delivery time was excellent, and the packaging was secure.

2 months ago

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Q4

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Description

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Common Questions