CONNECTING TO A PC/MAC QUESTIONS

Can I connect to a computer without an audio interface?

Can I use my KNA pickup to connect to a computer?

Why when I send the output signal of my pickup to a PC/Mac by way of a Scarlett 2i2 USB audio interface, the sound I receive from my monitors/headphones is only from the high frequencies?

Do your piezo pickups require an audio interface to connect to a Mac or PC for use with a DAW?