ARRAROWN ZK-1002 Bluetooth 5.0 Dual-Channel 100W x 2 Mini HiFi Amplifier Board

Meet the ARRAROWN ZK-1002: compact power for your DIY audio projects

The ZK-1002 is a compact 2.0-channel HiFi amplifier board designed to bring authentic sound to home DIY speakers. When powered with a suitable DC supply, it can deliver up to 100W per channel into 4–8 ohm loads, striking a balance between wall-friendliness and real-world power. This makes it a practical option for projects that demand noticeable output without a full-sized receiver.

At the heart of the board are robust TPA3116D2 amplifier chips. They work with a carefully chosen set of inductors and film capacitors to help minimize distortion while preserving clear highs and tight, responsive bass. The board also supports AAC Bluetooth decoding, which broadens compatibility with modern devices, and it includes low-latency Bluetooth for a smoother wireless listening experience.

Power, size, and placement

• Very small footprint: 8.5 x 5.3 x 2.2 cm, designed to fit into tight DIY enclosures or be tucked behind a speaker cabinet.
• Dual-channel output: up to 100W per channel into 4–8 Ω speakers; compatible with DC 12–24V power supplies (5A+).
• Best paired with 50–100W class speakers for a balanced, room-filling listening experience.

Connectivity and ease of use

• Bluetooth 5.0 input with low latency and a straightforward AUX input for wired connections.
• Note: When using AUX mode, ensure the Bluetooth connection is disconnected to avoid conflicts.
• AAC BT decoding enhances compatibility with popular smartphones and tablets.

Quality, protection, and reliability

• High-fidelity design with multiple inductors and a dense capacitor array to reduce loss and improve detail.
• Two protected amps provide strong output with low distortion (< 0.3%), aided by interference suppression in the chip set.
• Multiple safety features including over-voltage, under-voltage, over-heat, and short-circuit protections, all housed within a protective casing for safe home use.

Whether you’re upgrading an existing DIY speaker build or starting a new project, the ZK-1002 offers tangible, real-world benefits without promising specific outcomes. Users often notice more dynamic transients, clearer imaging, and a balanced overall tonal presence when paired with compatible drivers and enclosures. It’s a versatile module that invites experimentation and careful pairing with your preferred cabinet design, wiring, and source selection.