Are typical electronics grade components good enough for active filter applicationsÉ. Where do I get resistors and caps

Yes any normal grade parts would be fine. YOu can get parts from any electronics dist. or order them from many places on line-MCM, parts express, mouser digikey etc

Yes any normal grade parts would be fine. YOu can get parts from any electronics dist. or order them from many places on line-MCM, parts express, mouser digikey etc

Although you may want to pay extra for 1 or 2% tolerance components, or you can measure the components to pick values within you own tolerance.

Are typical electronics grade components good enough for active filter applicationsÉ. Where do I get resistors and caps

digikey.com

You can buy an inexpensive active crossover board as a kit or assembled at Marchand Electronics. http://www.marchandelec.com/xm1.html