Home Theater Q4 Headphone Amplifier Mini Stereo DAC 24-Bit 192 KHz USB Optical Coaxial to RCA AUX Digital-to-Analog Audio Converter Adapter for Home Desktop Powered Active Speakers

Home Theater Q4 is designed with PC-USB/optical inputs and coaxial and RCA/3.5MM headphone outputs can fit with most home audio system.(Q4 do not support Microphone). RCA output can be connected to amplifier or powered speakers on your desktop; Built-in Hi-Fi headphone amp chip can drive most 16 Ohm to 200 Ohm headphones
Easy to set up, no special software, app, or driver to install, a true plug-and-play digital audio adapter
160mW RMS(32 ohms, 20 Hz - 20 KHz, 0.01% THD), with bass and treble control can be used as preamp or volume controller for your PC/MAC/Computer
Mini Compact D/A converter, stream bit-perfect 24bit/192KHz HD with low jitter, with output protect circuit, safe for your expensive audio system
Come with 5V USB power supply cable, optical cable, USB type B cable and 18-month warranty; Full metallic shell to ensure high quality

	Q4	N2	DAC-K3 DSD256	DAC-HD3 (Headphone Amp)	DA2120A Amplifier	DA2120C Amplifier
PC-USB Input Sampling Rate	24Bit/96kHz	-	DSD256+24Bit/384kHz	24Bit/192kHz	24Bit/192KHz	24Bit/192KHz
OPT/COA Input Sampling Rate	24Bit/192kHz	-	-	-	24Bit/192KHz	24Bit/192KHz
Headphone Matching Impedance	16-200Ohm	16Ohm-600Ohm	16-300Ohm	16-600Ohm	-	-
Input Interface	USB, OPT, COA	3.5MM AUX	USB only	USB Type-C	Bluetooth, 3.5mm Aux, USB, Optical, Coaxial	Bluetooth, RCA, USB, Optical, Coaxial
Output Interface	RCA, 3.5mm Headphone Jack	3.5MM AUX	Optical, Coaxial, RCA, 3.5mm Headphone	3.5mm + 2.5mm Headphone output	Passive Speakers + Active Subwoofer	Passive Speakers + Active Subwoofer
Work Voltage	DC 5V	DC 5V 1A	DC 5V	Battery capacity: 1500mA	DC 24V	DC 32V