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General| Power Output | 100W x 2 (4Ω) |
|---|---|
| Frequency Response | 20Hz - 20kHz |
| Input Impedance | 47kΩ |
| Chipset | TPA3116D2 |
| OP AMP Chip | NE5532 |
| Bluetooth Version | 5.0 |
| Input Mode | RCA, Bluetooth |
| THD+N | < 0.1% |
| Speaker Impedance | 4Ω - 8Ω |
| Power Supply | DC 24V/4.5A |
| Output Mode | Speaker Output |
| Operating Voltage | DC 18V-24V |
Lists required items: DA-2120C, power supply, passive speakers, wires, or plugs.
Details bare wire connection: releasing terminals, inserting wire, and tightening connections.
Details banana plug connection: releasing jacket, loosening screw, inserting wire, tightening, plugging into terminals.
Step-by-step guide for pairing a Bluetooth device like a phone with the amplifier.
Guide for connecting and selecting the DA-2120C via PC-USB for audio playback.
Steps for connecting a TV via optical cable and setting audio output to RAW/PCM.
Instructions for connecting a TV via coaxial cable and selecting the coaxial input mode.
Guide for connecting a device via RCA interface and selecting AUX mode for audio.
Addresses hiss noise by disabling Dolby/DTS audio on the TV or TV App.
Explains how to boost gain to +6dB for perceived low power using the remote.
Confirms the product's power supply compatibility with AC 110V-240V.
Confirms support for Bluetooth 5.0, backward compatibility, and aptX.
Notes that aptX requires both the device and the DA-2120C to support it.
Clarifies that the DA-2120C does not support headphones, only passive speakers/subwoofers.
Suggests checking cable connections, audio source, and using the original power supply.
Provides steps for troubleshooting Bluetooth pairing, including distance and obstacles.
Addresses noise on USB input by suggesting USB port switching or cable replacement.
Guide to resolving Windows USB recognition issues via Device Manager.
Recommends switching USB ports, replacing cables, or replugging power supply.
States that optical connection is input-only and does not support 5.1 surround output.
Explains that actual power depends on speakers and may vary from rated 120Wx2.
Troubleshooting steps for a non-working channel, including testing inputs and speakers.
Details that the sub output supports active subwoofers or subwoofer amplifiers.
Confirms it is safe to leave the Class D amplifier powered on due to low standby power.
Recommends 36V 8A or 36V 10A power supplies for more power, within DC12-36V range.
States an 18-month limited warranty on parts and labor from the date of purchase.
Company background on designing innovative, high-quality audio products.
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