Diy amplifiers kit in comparison

All-in-1 DIY electronics kits the soldering project kit supports Bluetooth, AUX, USB disk and TF cards for playing music. With Bluetooth, you can easily play music from your phone. The audio cable interface is suitable for all devices that have a 3.5 mm audio output. With USB sticks and TF card slots, you can play many songs. Soldering practice, family reunions, outdoor activities or private leisure, this speaker is the perfect choice.

CONVENIENT TO GET ELECTRICITY AND DEBUG With power indicator light, which is very convenient to get electricity and debug, etc. You can get electricity from the computer by using the USB to DC005 cable in the store

Connect the 6J1 tube pre-amp between sound source and amplifier, it will effectively filter digital flavor, the music and human voice will be relatively good

PCB size 67.5x48mm

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

Adopt imported TPA3116D2 chips, with excellent power amplifier effect.

Adopting classical TPA3116 chip, the max output power is improved to 100W(50W*2) which can drive most home speakers. HiFi clear and delicate sound, no audible noise even at high power output.

EQ Control App for iOS & Android Take full control of your audio preferences with the free Go CONTROL APP. Compatible with iOS and Android devices, this intuitive app allows you to adjust the equalizer settings, tailor the sound output to your liking, and create a personalized listening experience that suits your musical taste.

HIGH PERFORMANCE Contains 10 times the tone board preamp, and treble, alto, bass, volume control.

20W Mono Channel HiFi Amplifier Board.

Experience superior audio quality with our 1969 Class A Power Amplifier Board, designed for DIY enthusiasts and audiophiles alike. This kit features high-quality MOT 2N3055 transistors, ensuring robust performance and reliability. Ideal for projects requiring 10-15W of power, it delivers crisp, clear HiFi sound that enhances any audio setup.

UNIQUE DESIGN FOR YOU The preamplifier board use MET series of non-polar capacitor, high-frequency low-resistance electrolytic capacitors, 1% precision metal film resistors, J-class military regulation tube 6J1.