Bluetooth Power Amplifier Board with Subwoofer 2.1 Channel 50W×2+100W, 12V-24V Audio Power Amplifier Module with Treble and Bass Control for DIY Bluetooth Audio and Store Home Theater
(as of May 18,2022 20:56:02 UTC – Details)
ZK-MT21 Bluetooth power amplifier board parameters
Bluetooth Version: 5.0 (Without occlusion 49 Feet)
Audio Input: AUX + Bluetooth
Channel: 2.1 Stereo
Adaption Supply Voltage: 12-24V / 5A above
Speaker: 20-100W, 4-8Ohm
Output Power: max 50W R&L channel; max 100W subwoofer
Protection Mechanism: Anti reverse connection, overheating, overcurrent, short circuit protection
Please note that this product does not include a power supply, you need to equip it with a DC power supply.
It is recommended to use a DC power supply within 20V. If you use a battery pack to supply power, make sure that the battery voltage is lower than the rated voltage when the battery is fully charged.
Independent Treble & Bass Control
Comes with independent treble and bass control so you have more sound choices. A small power amplifier can also create a small movie theater for you. If you give it enough energy, with a 5-inch-6.5-inch speaker, it can give you a value-for-money experience.
High compatibility and versatility
1. In addition to the Bluetooth input method, this power amplifier board can also input audio through AUX, and all 3.5mm AUX cables on the market can be used;
2. Regardless of whether your speaker cable has wiring terminals, it can be quickly and conveniently connected to the ZK-MT21 power amplifier board;
3. The universal 5.5mm*2.1mm DC power interface can be compatible with most of the DC power adapters on the market. Of course, this product also comes with a DC adapter to solve your worries about not having a 5.5mm*2.1mm plug.
Additional base for Bluetooth antenna
As some customers need additional Bluetooth antennas, we reserve a Bluetooth antenna base for customers,
Under normal circumstances, you do not need to add an additional Bluetooth antenna for it, only when you install the power amplifier board in a closed metal box, you need to add an additional Bluetooth antenna.
【Bluetooth & 3.5mm AUX】 The ZK-MT21 power amplifier board uses Bluetooth 5.0, and its transmission distance can reach 49 feet (without obstruction). At the same time, this power amplifier board has a 3.5mm AUX audio input interface. No matter what kind of input method, you can always find a method that suits you.
【Treble and bass adjustment】If you are tired of power amplifiers with only a single volume knob, then you feel right, because you have further requirements for audio. By adjusting the high and low frequency knobs of ZK-MT21, you can make the sound more layered and make the bass more shocking.
【High compatibility】The DC adapters on the market (plug specification 5.5mm*2.1mm) basically can meet the needs of the ZK-MT21 Bluetooth power amplifier board. If your existing DC power plug is not 5.5mm*2.1mm, there is no The problem is because we have included a DC conversion plug in the product.
【Protection function】ZK-MT21 Bluetooth power amplifier board has multiple protection mechanisms to ensure its safe operation. It has short-circuit protection, over-current, over-heat, and anti-reverse protection. When an overload occurs, the device reports the fault condition to the processor to protect itself from damage
【7 * 24 Hours After-sales Service】 Paying Attention To Customer Experience And Satisfying Customers Is Our Service Tenet. If You Have Any Questions About The Product, or The Product Has Quality Problems, Please Contact Us At Any Time, We Will Give You A 100% Satisfactory Answer