Product Description & Technical Details
Product Description
The ZK-TB21 is a high-performance 2.1-channel audio amplifier module designed for audiophiles and DIY hobbyists who want to build their own powerful sound systems. Built around two high-fidelity power chips, it delivers a massive 200W of total output ($50W \times 2$ for the satellites and a dedicated $100W$ for the subwoofer). This board is a premium offering from Robogears Private Limited, featuring five high-quality knobs for total acoustic control, allowing you to fine-tune the master volume, subwoofer frequency, subwoofer volume, treble, and bass independently.
Key Highlights
Advanced Bluetooth 5.0: Ensures a stable, low-latency connection with smartphones, tablets, and PCs, providing high-quality wireless audio streaming.
Independent Subwoofer Control: Unlike standard 2-channel amps, the ZK-TB21 features dedicated adjustment for the subwoofer's cutoff frequency and volume, allowing you to match it perfectly with your enclosure.
Robust Protection Mechanisms: Equipped with over-voltage, under-voltage, over-heat, and short-circuit protection to ensure the safety of your speakers and power supply.
Premium Build Quality: Uses large-capacity electrolytic capacitors and high-grade inductors to ensure clean, noise-free audio output even at high volumes.
Heat Dissipation: Comes with a pre-installed large-area heat sink to maintain stable performance during long listening sessions.
