Help with huge spike in volume on certain frequency

[Solex]

English is not my first language so if I use wrong or misleading terminology, feel free to correct.

Our band plays in fairly small rectangular room, around 3.5 x 3.5 meters across (around 12 feet). The room itself is adequately damped with acoustic elements, bass traps in corners etc. I am satisfied with acoustics generally and small rooms with concrete walls are never easy to make great for band without extensive structural solutions.

My problem: In standard tuning there is HUGE volume spike on frequencies around C# (A string, fourth fret). Possibly it's quite close to natural resonance frequency of concrete walls. When I play from there, tone is just mud and other guys complain that bass overhelms them.

I am noob when it comes to using equalizers. Never used anything else than fixed three to four band EQ in amplifiers. Could I try to rectify this problem with some kind of equalizer. Ie. could carefully set parametric equalizer bring some remedy. If yes, what commercial products there are in market that could be useful for this particular use. Are equalizers generally used to address these kind of particular problems (narrow band spike).

Thanks!

 

[Freightshaker]

Welcome to talkbass Solex!
Sometimes the speaker cab has a resonate spike, sometimes it's the bass that has a coupe of notes that are much louder.

Specifically, a Parametric EQ type pedal will be the best bet to notch out a narrow band of frequency.

Personally I just use a little compression and play softer on resonant notes and harder on dead notes which are in different spots on various basses.

 

[ddnidd1]

You could try a narrow notch setting on a parametric EQ.

 

[JMV]

Apologies for jumping in so late on this thread . . . is it possible the room size is not large enough for most frequencies in bass guitar ranges to fully develop? That is, are many of the waveforms being cut off thus partially "canceling" and over accentuating other notes/harmonics? Perhaps someone with real expertise in room acoustics and science could weigh in. I, too, am disappointed with the sounds of my eqt in a small room so would love to see this dialog continue.

@Solex . . . imo your English is superb, wouldn't ever have known it's a second language for you!