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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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
Minimum Supply Voltage
5
Mounting Type
Tabletop Mount
Number of Pins
11

🎧Drives 16Ω-200Ω headphones

🔊24-bit/192kHz HD audio

🔌USB/Optical/Coaxial inputs

₨58827

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In stock

Sold byAmazon Sri LankaDelivered 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 Sri Lanka.

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Description

🎧 Elevate Every Beat — Your Sound, Your Rules

PLUG AND PLAY SIMPLICITY - No drivers needed—just connect and elevate your audio instantly, perfect for busy professionals on the go.
COMPACT POWERHOUSE DESIGN - Sleek full-metal chassis fits anywhere on your desk while delivering robust amplification for headphones and speakers.
CUSTOMIZABLE AUDIO TUNING - Fine-tune your bass and treble with premium metal knobs for a personalized sound profile that fits your vibe.
AUDIOPHILE GRADE SOUND CLARITY - Experience pristine 24-bit/192kHz high-definition audio with ultra-low jitter for crystal-clear listening.
SEAMLESS MULTI SOURCE CONNECTIVITY - USB, Optical, and Coaxial inputs let you effortlessly switch between PC, TV, and stereo setups.

The Fosi Audio Q4 is a compact, entry-level DAC and headphone amplifier designed for professionals seeking high-fidelity audio enhancement. Supporting USB, Optical, and Coaxial inputs, it delivers 24-bit/192kHz HD sound with low jitter, drives headphones from 16Ω to 200Ω, and offers adjustable bass and treble controls. Its plug-and-play design and premium metal build make it an ideal desktop companion for seamless, customizable audio experiences.

Specifications

ASIN	B07VDQQY95
Audio Output Mode	Stereo
Best Sellers Rank	#9,762 in Electronics ( See Top 100 in Electronics ) #15 in Headphone Amps #39 in Audio Component Amplifiers
Brand Name	Fosi Audio
Compatible Devices	Amplifier, Headphone, Speaker, Television
Customer Reviews	4.4 4.4 out of 5 stars (3,338)
Included Components	User Guide
Interface	Coaxial, Optical, USB
Item Dimensions L x W	3.9"L x 2.9"W
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 Pins	11
Part Number	Q4
Unit Count	1 Count
Warranty Description	24-month warranty

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Our prices include the product cost, international shipping, import duties, customs clearance, and local delivery charges. We handle all customs and import procedures, ensuring there are no hidden fees upon delivery. PRO members receive additional benefits including free shipping.

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TrustScore 4.5 | 7,300+ reviews

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₨58827

Duties & taxes included

In stock

Sold byAmazon Sri LankaDelivered 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 Sri Lanka.

Secure transaction

Trustpilot

TrustScore 4.5 | 7,300+ reviews

Fatima A.

Best international shipping I've ever tried. Worth every penny!

3 days ago

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Fast shipping and excellent packaging. The Leatherman tool feels very premium and sturdy.

1 day ago

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