The ARRAROWN ZK-TB21 is a versatile 2.1 channel Bluetooth 5.0 audio amplifier board designed for DIY enthusiasts and home audio projects. It provides a powerful 50W x 2 stereo output along with a 100W subwoofer channel, supporting speakers ranging from 20-100W with 4-8Ω impedance. This imported unit offers superior sound quality with its AM interference suppression, shielding power inductance, and low-noise front-stage operational amplifier, ensuring a cleaner audio experience compared to many local alternatives. All customs duties and GST are included in the price, with delivery via ExpressBox tracked service.
Experience precise audio control with independent treble and bass adjustment buttons directly on the module, eliminating the need for external EQ. The board is powered by DC 12-24V and requires a minimum 5A current for optimal performance, with higher voltage recommended for maximum output. It integrates robust protection features including over-voltage, under-voltage, over-heat, and short-circuit protection, ensuring durability and safety during operation. The clear interface labels printed on the protective plate simplify installation, making it user-friendly even for beginners.
This amplifier board is suitable for a wide range of applications, from home stereo systems and personal audio setups to small-scale event sound. Its compact size (12cm x 10cm x 1.8cm) makes it easy to integrate into custom enclosures. While US-market units require a step-down transformer for India's 230V mains and a plug adapter, this ARRAROWN module offers a cost-effective and high-performance audio upgrade. The ₹5,590 per board price makes it an attractive option for enhancing your sound system.