Lågimpedansmickar och aktiv elektronik

[Nybassisten]

Ok, jag snubblade över det här med mickar med väldigt låg output nånstans. Har för mig att det var på Langcasters sajt. Enligt dem så har deras mickar den resonanta frekvensen(/erna?) utanför det hörliga spektrat. Här är en grej jag klippte ur en diskussion som verkar rätt intressant:

My original idea was basically this: a simple active 2nd order lowpass filter can duplicate the resonance of a guitar pickup, and all its parameters (Q, resonance frequency) can adjusted by the twist of a knob or flick of a switch.

So it would seem that a low-impedance single-coil pickup (and I agree with you that this primarily means a low inductance, since the inductive reactance dominates the pickup impedance) in combination with an active second order lowpass filter in the guitar preamp would be very versatile, essentially being able to duplicate the sound of just about any single-coil pickup placed in the same physical location on the same guitar.

Things get more complicated for humbuckers, since they use the algebraic sum of two voltages derived from two different but nearby points on the guitar string. I'm not sure if that sort of rolloff can be replicated electronically.

Still, it's a very tempting idea, no? A pickup that has a flat frequency response of its own, so that along with its preamp it can be dialed in to sound like any pickup you want...


Några kommentarer på detta eller idéer på hur man skulle kunna utveckla ett system för att emulera olika micksound?