New Diy kit 12v 100W 3.5Mhz-30Mhz HF power amplifier low pass filter | eBay
Low Pass Filter for Subwoofer(161) - Salcon Electronics
Subwoofer Low Pass Filter Board using NE5532 Op Amp - Easy to Make Hobby Kit | MYPCB
M V COLLECTION SUBWOOFER LOW PASS FILTER WITH GAIN AND FREQUENCY ADJUSTABLE CONTROLL HIGH QUALITY FOR AMPLIFIER BOARDS ( WORKING VOLTAGE 0-12 AC ) Electronic Components Electronic Hobby Kit Price in India -
Buy Two Band Low Pass Filter Kit with Bypass | Radio Experimenter's corner