# Audio amplifier kit, DIY, TPA3116D2, 50Wx2, 100Wx1, 2.1, HiFi, with case

- Page: https://sigmanortec.ro/en/audio-amplifier-kit-diy-tpa3116d2-50wx2-100wx1-21-hifi-with-case
- Price: 159.10 RON
- Availability: In stock; 1-2 zile
- Reference: 9684 · EAN: 5947378746190
- Category: Mechatronics and IoT > Sensors and Modules > Audio and Sound > Audio Amplifiers
- Specifications: Type: Amplifier; tension: AD; Power: Over 20W
- Package (shipping data): 0.27 kg
- Updated: 2026-09-14
- Shop: [Sigmanortec.ro](https://sigmanortec.ro/en/llms.txt)
- Prices: RON, VAT included; prices and stock as of 2026-10-22 06:34 (Europe/Bucharest)

## Description

HiFi 2.1 amplifier for DIY projects, offers 2x50W stereo and 100W on subwoofer for clear sound and powerful bass. Based on TPA3116D2 with high efficiency and low noise, includes NE5532 op-amp and AUX input for quick connection. Transparent acrylic housing highlights the electronics and integrates easily into any setup.
The TPA3116D2 is a HIFI 2.1 audio amplifier with superior sound quality, offering an authentic and dynamic audio experience. With two stereo channels of 50W each and a subwoofer channel of 100W, this amplifier ensures a clear and powerful reproduction of low, medium and high frequencies. Built with a transparent acrylic case, its elegant design fits perfectly in any modern decor and allows the internal components to be viewed, adding a touch of technological aesthetics. Being equipped with the TPA3116D2 chip, this amplifier promises high efficiency and exceptional sound performance, making it ideal for audiophiles and enthusiasts.
The product can arrive with the acrylic case already assembled. The paper foil must be peeled off to have a transparent case.
Specifications:
Supply voltage: 12V-24VDC
Chipset: TPA3116D2, one for each channel
Operational amplifier: NE5532
Configuration: 2 stereo channels (50W each) + 1 subwoofer channel (100W)
Case material: Transparent acrylic
Frequency range: 14 - 100KHz
Switching frequency: 1.2MHz
Input impedance: 4 - 8Ω
Signal-to-noise ratio (SNR): 100 db
Audio input: AUX-IN connector or XH2.54mm plug
Dimensions mm: 100 x 70 x 30mm