Would this be ok for 8ohm - 80w passive speakers?

No. This is a headphone amplifier with 160 *milliwatt* output. Unless you want to clamp one passive speaker to each side of your head, you won't hear much.

Would this work with 250 ohm beyerdynamic headphones?

Yes, but it wont be as loud compared to something with more power to drive higher impedance headphones.

is this an amp or a dac? and would it be a good pair for a senhieser HD560s?

This is a DAC with amp-like controls, and yes the HD560 impedance is 120 Ohms, this DAC can power up to 200.

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Fosi Audio Q4 Headphone Amplifier DAC Converter, Mini Stereo Digital-to-Analog DAC Amp, USB Coaxial Optical to 3.5MM AUX RCA Jack, for Computer Desktop Powered Active Speakers Up to 24 bit/192 kHz

Product ID: 174108366

Details

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

🎧Supports 16-200Ω headphones

💻24bit/192kHz high-res audio

🔊160mW RMS output power

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COP 905524

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Sold byAmazon ColombiaDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

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Description

🎧 Upgrade your sound game—because your ears deserve the best!

COMPACT METAL BUILD - Sleek, durable full-metal chassis fits effortlessly on your desk while protecting your investment.
PLUG PLAY SIMPLICITY - No drivers or software needed—just connect and elevate your audio instantly.
VERSATILE CONNECTIVITY - Seamlessly converts USB, optical, and coaxial digital inputs to analog RCA and 3.5mm outputs—perfect for any setup.
CUSTOMIZABLE AUDIO CONTROL - Tactile bass and treble knobs let you fine-tune your sound signature on the fly for every mood and moment.
IMMERSIVE GAMING SOUNDSTAGE - Texas Instruments NE5532 op-amps deliver ultra-low noise and crystal-clear spatial audio for next-level immersion.

The Fosi Audio Q4 is a compact, beginner-friendly headphone amplifier and DAC converter that supports high-resolution 24bit/192kHz audio. It powers headphones from 16 to 200 ohms with 160mW RMS output, featuring versatile USB, optical, and coaxial inputs. Its premium metal build and tactile bass/treble controls deliver a customizable, immersive listening experience ideal for gaming, music, and home audio setups—all without complicated software installation.

Specifications

ASIN	B07VDQQY95
Best Sellers Rank	33 in Headphone Amplifiers
Brand	Fosi Audio
Compatible Devices	Amplifier, Headphone, Speaker, Television
Country Of Origin	China
Customer Reviews	4.4 4.4 out of 5 stars (3,184)
Interface	Coaxial, Optical, USB
Item Dimensions L x W	9.9L x 7.4W centimetres
Item Weight	430 Grams
Manufacturer	Fosi Audio
Manufacturer Part Number	Q4
Material	Metal
Maximum Supply Voltage	5 Volts (DC)
Minimum Supply Voltage	5 Volts (DC)
Model Number	Q4
Mounting Type	Table
Number of Channels	1
Number of Pins	11
Product Warranty	24 months
Unit Count	1 count

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COP 905524

Duties & taxes included

In stock

Sold byAmazon ColombiaDelivered 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 Colombia.

Secure transaction

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TrustScore 4.5 | 7,300+ reviews

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