






Fosi Audio DA2120C 2.1 Ch Integrated Amplifier
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Fosi Audio DA2120C 2.1 Ch Integrated Amplifier
If you have any questions, you are always welcome to contact us. We'll get back to you as soon as possible, within 24 hours on weekdays.
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Shipping Information
We offer free worldwide shipping, except for certain regions such as Ukraine and Russia, where our services are currently unavailable.
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Customer Support
WhatsApp: +8613716612254
support@fosiaudio.com
Mon-Fri: 3:00 AM - 3:00 PM PST -
FAQ’s
If you have any questions, please refer here: FAQs
Product details
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2.1 CH Wireless DAC Hifi Amplifier with EQ Control. MAX Power Output up to 120Watts x2@4ohm. DA2120C can drive most home bookshelf/desktop/outdoor(passive) speakers and powered subwoofers, offering low distortion and acoustically accurate audio reproduction. The bright digital LED display lets you see the settings you change easily and remote control for hassle-free adjust the inputs mode/volume/bass/treble.
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DA2120C high-performance integrated stereo digital amplifier adopts Texas Instruments TAS5352A chip, designed to drive a 4-Ω bridge-tied load (BTL) at up to 120 W per channel with low harmonic distortion, low integrated noise, and low idle current. The TAS5352A has a complete protection system integrated into the chip, safeguarding the device against a wide range of fault conditions that could damage the system.
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2-in-1 High-Performance DAC Power Amplifier with Multiple Input Modes. DA2120C installed in a quality aluminum enclosure supports Bluetooth/RCA/PC-USB/Coaxial/Optical Input, easy installation to build a stereo sound system.
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DA2120C Bluetooth 5.0 amplifier delivers sound in sync, so you can enjoy the freedom of wireless and high-fidelity streaming music. It reduces delay and improves the end-to-end speed of the audio transmission, resulting in high-quality, synchronized sound, so you never miss a beat. With a 6dBi high gain antenna for long-range streaming up to 65 ft(20m).
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What You Get: DA2120C stereo amplifier x1, Bluetooth antenna x1, 32V/5A power supply x1, remote control x1, PC-USB Cable x1, Optical Cable x1, user manual x1, our worry-free 24-month warranty, and friendly customer service.


Specifications
Specifications | Details |
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Model | DA2120C |
Output Power | 2 × 125W at 10% THD+N Into 4 Ω 2 × 100W at 10% THD+N Into 6 Ω 2 × 80W at 10% THD+N Into 8 Ω |
Frequency Range | 20Hz - 20kHz (±1 dB) |
Bass frequency | 20Hz-200Hz |
THD | ≤ 0.01% |
SNR | ≥ 105dB |
USB Chip | Cmedia CM6642 SUPPORT 24bit/192Khz |
Amplifier Chip | American TI TAS5352A |
Bluetooth Chip | Qualcomm QCC3031 Bluetooth 5.0 chip supports aptX, aptX-HD, SBC, AAC |
DAC Chip | American Cirrus CS8422 chip USB, coaxial optical fiber Supported sampling rate 24bit/192Khz |
Device Dimension | L180*W130*H38mm (7*5*1.5in) |
System Supported | XP/W7/W8/W10/MAC/Linux |
Power Supply | 32V 5A |
What‘s in the box?
Item | Quantity |
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DA2120C Amplifier | x 1 |
32V 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 |
You can also view other models:
DA2120A+24V Bluetooth Amplifier 2CH 50WX2
DA2120B+24V Bluetooth Amplifier 2CH 100W x2
DA2120D+24V Bluetooth Amplifier 2.1CH 100W x2
FAQs
Please read our FAQs page to find out more.
How to: Choose the right banana plug?
- Closed Screw Type. All Fosi amplifiers use standard-sized speaker terminals (4mm pins).
- Easy to wire up and solidly connect to amplifier and passive speaker.
- If they do not fit, use a little force to tighten the plugs.
- Fosi Audio Banana Plugs (Copper, Silver/Gold Plated): http://bit.ly/40Djq0U, https://bit.ly/3MkPL8t
- Please watch tutorial videos: https://youtu.be/6pYhoqDlvNw / https://youtu.be/RGvBgGAwS9k
How to Diagnose Power Supply Failure?
- The following situations may cause this issue
- Case 1: The LED on the power supply does not light up; Case 2: Amp/Preamp does not turn on; Case 3: When plugged into the Amp, both light on the amp & power supply start blinking; Case 4: Amp/Preamp make noise; Case 5: Sound shuts off by itself
- Possible solution
- Check if the power supply is illuminated when plugged into AC by itself.
Plug power supply into a different socket.
Test the adapter with a meter.
Try a different power supply (within a range of DC input).
Test the included power supply on other electrical equipment.
Please watch the tutorial video by clicking on the link provided. https://youtu.be/yCjygS03zTE
What are the differences in power outputs using the 32V and 48V power supplies?
- Using a more powerful power supply can help prevent distortion.
- Enables amplifier to drive larger, more powerful, or higher-impedance speakers.
What is a GaN?
- The GaN supply has a power output of 240W.
- Offers overload and over-temperature protection.
- The 48V 5A GaN power supply is also available on Amazon.