2Pcs ZK-1001U Mono Amplifier Board with TWS - Dual 100W Modules

In this review the focus is on the 2Pcs ZK-1001U mono amplifier boards, a compact pair of modules aimed at DIYers and installers who need a cost-effective way to build a stereo system from two mono amps. The bottom line: these boards deliver flexible inputs and a reliable TWS pairing feature that makes it easy to create left/right separation without a receiver. For anyone building small powered speakers or upgrading vehicle audio where DC9-24V is available, the main reason to buy is the combination of TPA3116D2 power and an auto-boost circuit that keeps output consistent from lower-voltage supplies.

Key Features

• TWS Pairing: One-click True Wireless Stereo pairing lets two boards act as left and right channels for a simple custom stereo setup without extra wiring.
• High-performance chip: The built-in TPA3116D2 chip provides efficient Class D amplification for clear output and up to 100W maximum power per stereo configuration.
• Multiple inputs: Bluetooth 5.3 plus USB and AUX inputs cover most source devices, making it versatile for home, vehicle, or portable projects.
• Wide voltage range: The DC9-24V input range makes these boards compatible with common vehicle and battery systems for flexible installation options.
• Built-in boost circuit: An auto-boost feature intelligently steps lower input voltages to a stable 19V or default 24V for steadier power delivery under load.
• After-sales support: The brand offers support for setup and troubleshooting, which helps when integrating the boards into custom systems.

Who It's For

The ZK-1001U pair is best for hobbyists, small workshop builders, and vehicle audio tinkerers who want to assemble a compact stereo system without a bulky receiver. Its TWS capability is ideal when space or wiring is limited and a true stereo separation is desired.

Those who need professional-grade SPL for large venues or want an all-in-one commercial amplifier with built-in equalization and protections should look elsewhere. Also consider alternatives with higher continuous power ratings if the primary goal is maximum loudness rather than efficient, compact amplification.

Pros & Cons

Pros

• Flexible inputs including Bluetooth 5.3, USB, and AUX make source setup simple.
• Auto-boost circuit helps maintain performance from 9V or 15V supplies by stepping to a stable 19V or 24V.
• Good value: customers report solid amp quality and functionality for the price point.
• TWS pairing enables easy wireless stereo linking of two boards without extra wiring.

Cons

• Sound quality feedback is mixed and some users note it may not reach the loudness of original factory amps in certain installations.
• Not a plug-and-play consumer stereo component; expects basic electronics or installation skills.

Specifications

Model	ZK-1001U (2 pieces)
Power Output	Up to 100W (stereo configuration using chips)
Amplifier Chip	TPA3116D2
Input Options	Bluetooth 5.3, USB, AUX
Voltage Input	DC 9-24V
Special Feature	One-click TWS pairing, built-in boost circuit
Default Boost Output	24V (auto-boost to 19V or 24V)

Our Verdict

The 2Pcs ZK-1001U boards are a practical choice for DIY stereo projects and vehicle audio installs where space, weight, and budget matter. With TPA3116D2 amplification, reliable TWS pairing, and an auto-boost circuit, they offer strong value for hobbyists who can tolerate modest trade-offs in peak loudness and who are comfortable with basic integration work.

Frequently Asked Questions

Can two boards pair wirelessly for stereo?
Yes, the one-click TWS pairing links two boards as left and right channels for true wireless stereo separation.

What voltage sources will run these boards?
The boards accept DC9-24V and include a built-in boost circuit that can raise lower inputs to a stable 19V or default 24V for consistent performance.

Which inputs are supported?
They support Bluetooth 5.3, USB, and AUX inputs, covering most modern phones, players, and wired sources.