DA-2120A - Receiver Fosi Audio - Free user manual and instructions
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| Product Type | Stereo Receiver |
| Brand | Fosi Audio |
| Model | DA-2120A |
| Dimensions (W x D x H) | 19.5 x 19.5 x 6 cm (7.7 x 7.7 x 2.4 in) |
| Weight | 1.5 kg (3.3 lb) |
| Power Supply | AC 100-240V, 50/60Hz |
| Power Output | 2 x 120W RMS (4 ohms) |
| Bluetooth Version | 5.0 |
| Audio Inputs | Bluetooth, AUX (3.5mm), USB (for audio) |
| Speaker Outputs | 2 channels (left/right), banana plug or bare wire |
| Frequency Response | 20Hz - 20kHz |
| Signal-to-Noise Ratio | > 90 dB |
| Total Harmonic Distortion | < 0.05% |
| Material | Aluminum alloy casing |
| Cooling | Passive heat sink |
| Maintenance | Wipe with a soft dry cloth. Do not use solvents. |
| Safety Warnings | Keep away from moisture. Do not open the unit. Use only supplied power adapter. |
| Spare Parts and Repairability | Contact Fosi Audio support for spare parts. Device is not user-serviceable. |
| Included Accessories | Remote control, power cable, AUX cable, user manual |
Frequently Asked Questions - DA-2120A Fosi Audio
How do I pair my phone with the DA-2120A via Bluetooth?
Turn on the receiver and set it to Bluetooth mode (press the source button until 'BT' appears). On your phone, enable Bluetooth and select 'Fosi Audio DA-2120A' from the list. If prompted, enter '0000' as the PIN.
What is the maximum power output per channel?
The DA-2120A delivers up to 120W RMS per channel into 4 ohms, suitable for most bookshelf speakers.
Can I use speakers with 8 ohms impedance?
Yes, the receiver supports 4-8 ohm speakers. At 8 ohms, the power output is approximately 60W RMS per channel.
How do I connect a TV or other audio source?
Use the AUX input (3.5mm) or a USB cable if your device supports audio over USB. Connect the cable from your source to the corresponding input on the receiver, then select the correct source using the remote or front panel button.
Why is there no sound from the speakers?
Check that the speakers are properly connected and the receiver is powered on. Ensure the volume is turned up and the correct input source is selected. Try pairing Bluetooth again or reconnecting the AUX cable. If using USB, verify your device outputs audio.
Does the receiver come with a remote control?
Yes, a remote control is included. It allows you to adjust volume, change inputs, and control playback.
Can I use the DA-2120A with a subwoofer?
This model does not have a dedicated subwoofer output. You may need a subwoofer with its own amplifier and speaker-level inputs.
What is the warranty period?
Fosi Audio typically offers a 2-year warranty from the date of purchase. Register your product on the Fosi Audio website for extended warranty options.
How do I clean the receiver?
Turn off and unplug the receiver. Use a soft, dry cloth to wipe the exterior. Do not use any liquid cleaners, abrasives, or spray directly on the unit.
Is the power supply universal?
Yes, the DA-2120A accepts AC input from 100V to 240V at 50/60Hz, so it can be used worldwide with an appropriate plug adapter.
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