How to make Low Bass on computer?

[Mikey Bates]

I make a lot of music and i really wanna make my own demo song for my car. I cant seem to find an accurate way for making clean, smooth, low bass. Everything else i got lo except for that. running mac, and i have tons of recoding software so what kind do you use? Also is there like a VST plugin where its low bass but it somehow has the converstion for the frequency your playing. . . IE. instead of saying you recorded a C# or whatever, itll tell you the freq soyou dont gotta measure it all the time...