SUB-2K Subwoofer Low Pass Filter
Yes you can do it by yourself very simple and easy
Electronic Crossover DIY KIT For Active Subwoofer
Work from Amplifier Power Supply
Model 2x25V will work with 2x18-2x30Vdc (+ 0 -)
Model 2x35V will work with 2x30-2x40Vdc (+ 0 -)
Model 2x50V will work with 2x45-2x55Vdc (+ 0 -)
Order Option:
1. DIY KIT You need to Place and solder all the components
2. PCB with components Assembled Ready to Use
High quality Product and reliability FR4 1.6MM PCB
Stereo Input To Mono Output
Current Consumption: 4mA