Fosi Audio DA2120A Amplifer


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    • 【Multiple Funtions】Supports USB, Optical, Coaxial, 3.5mm AUX and Bluetooth 5.0 apt-X input, Infrared receive & OLED display. Note: It is highly recommended that you use this amplifier on a 4ohm speaker.
    • 【Hi-Fi Performance】Adopt Bluetooth QCC3031 & USB CM6642 chips, support aptX, aptX HD & 24bit/192Khz audio; High gain antenna for long range streaming up to 65 ft(20m).
    • 【Great Sound】Class d amp 50Watt x2@4ohm power with low-pass subwoofer output can drive most home speakers, TI NE5532 operational amplifier cores to ensure sound quality.
    • 【Remote Control】Multifunctional remote control for home wireless use with bass and treble control, inputs selector, EQ, mute, loudness setting, etc.

What‘s in the box?

Item Quantity
DA2120A Amplifier x 1
24V 4.5A Power Supply x 1
Remote Control x 1
USB Cable x 1
Optical Cable x 1
AC Cord x 1
User’s Manual x 1


Model DA2120A
Output Power 50W + 50W @4Ω
Terminating Impedance 2-6 ohm (Recommended 4ohm)
Input Mode Bluetooth 5.0 support aptX, AUX, USB, Optical, Coaxial
Output Mode Passive Speakers + Active Subwoofer
Frequency Range 20Hz – 20kHz
THD ≤ 0.01%
SNR ≥ 105dB
Input Sensitivity ≤ 280mV
USB Input Sampling Frequency 192kHz/24Bit
Optical/Coaxial Input Sampling Frequency 192kHz/24Bit
USB System Supported XP/W7/W8/W10/MAC/Linux
Bluetooth Transmission Distance 65ft
Bluetooth Name FOSI AUDIO
Device Dimension L134*W130*H34mm
Power Supply 24V/4.5A


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