Audio Speaker Protection Board Boot Delay DC Protect DIY Kit
Audio Speaker Protection Board Boot Delay DC Protect DIY Kit
Audio Speaker Protection Board – Dual Channel Boot Delay DC Protect DIY Kit
Build your own reliable speaker protection circuit with this dual-channel Audio Speaker Protection Board DIY Kit. Designed for hobbyists and audio enthusiasts, this unassembled kit includes all components and a PCB so you can solder and assemble it yourself. The board features a built-in boot delay of 3–5 seconds to prevent unwanted transient noise when your amplifier powers up, keeping your speakers safe during startup and shutdown.
Key Features
- Dual Channel Protection: Safeguards both left and right speaker channels simultaneously.
- Boot Delay: 3–5 second startup delay (1.2V DC sampling) eliminates power-on transient noise.
- Simple, Safe & Reliable Circuit: Straightforward design ideal for DIY audio builds and upgrades.
- Operating Voltage: AC 12–16V — use an independent power supply (do not share with the power amplifier).
- Compact Form Factor: Dimensions: 65mm (L) × 40mm (W) × 25mm (H) — fits neatly into most amplifier enclosures.
- DIY Unassembled Kit: Includes all electronic components and a PCB as shown — assembly and soldering required.
Specifications
| Operating Voltage | AC 12–16V |
| Delay Time | 3–5 seconds (1.2V DC sampling) |
| Channels | Dual (Stereo) |
| Dimensions | 65mm × 40mm × 25mm |
| Assembly | DIY – Unassembled (all parts included) |
| Country of Origin | Made in Mainland China |
What's in the Box?
- 1 × Speaker Protection Board DIY Components Kit for Stereo (PCB + all components, unassembled)
Looking for more DIY and electronics accessories? Check out our Electromagnetic Induction Tester – Coil & Circuit Fault Detector or the Air Compressor Pressure Gauge – DIY Tool for your next project.
Learn more: ENERGY STAR product efficiency guidance
Frequently Asked Questions
Q: Is this speaker protection board kit pre-assembled or do I need to solder it myself?
A: This is a DIY unassembled kit. It includes all electronic components and the PCB as shown in the product images, but you will need to solder and assemble the board yourself. It is designed for hobbyists comfortable with basic electronics soldering.
Q: What power supply should I use with this audio speaker protection board?
A: The board operates on AC 12–16V. It is strongly recommended to use an independent power supply — do not share a power supply with your power amplifier, as this can affect the board's performance and reliability.
Q: What does the boot delay feature do on this speaker protection board?
A: The boot delay introduces a 3–5 second pause after power-on before connecting your speakers. This prevents the loud transient pop or thump that can occur when an amplifier starts up, helping to protect your speakers from sudden voltage surges during power cycling.