Acoustic B100 Question(Frequency/Notch Knob)

Jrv · #1 02-07-2011, 04:56 PM

Hey, I just got an Acoustic B100 bass amp the other day, and I pretty much have a gist of all the settings, except for one thing: This "Frequency/Notch" Knob. My dad is a guitar player of 35-40 years and he has no idea what it is.

Can someone shed some light on what this is and what it does? All it seems to do is put my bass out of tune.

Funny That Way · #2 02-07-2011, 05:15 PM

Notch filter removes a narrow band of frequencies, usually for eliminating feedback or reducing unwanted resonance (boominess in a particular room, say). It shouldn't have any effect on tuning, but it will have some effect on EQ. On the B100 it's a -10 dB notch, sweepable from 50 Hz to 1 kHz.

-Tom

Jrv · #3 02-07-2011, 05:24 PM

Do you have any recommendations for it's setting in certain situations?

Funny That Way · #4 02-07-2011, 05:53 PM

It's mostly just a problem-solver. If you're getting feedback, turn it to wherever makes the feedback go away. If I'm not having any problems, I just leave it all the way up. Somewhere else might work better for you. Just off the bottom helps with 60 Hz hum, for example. Anyway, experiment with it a bit.

-Tom