Bass frequencies

[KingPrawn]

Usually when i set up for a gig i set everything flat and then adjust as neccessary. i have always known that the bass has particular frequencies but i am not sure across what range say a four string bass covers. Any help out there. i figure if i understand this more i may be able to adjust my amp more effectively.

[Lfalex v1.1]

IIRC the fundamental of Low E is about 41Hz. Low B is around 32. The first harmonic of each (in terms of pitch rather than position on the fretboard) is the same pitch - if your intonation's on- as the fretted note at the 12th fret. This is at TWICE the frequency- 82 and 64 Hz respectively.
Trouble is, the harmonic content of any "note" on a bass is not restricted to just the first harmonic. There's a second, third, fourth etc. The sky's the limit.
realistically, EQ does little that most of us mortals with ageing (if not damaged) ears can detect above about 8kHz, and there's probably not much content up there anyway. Be aware that over-application of EQ in the higher reaches of the audio spectrum can induce unwanted noise, just as too much low end can cause distortion and possibly clipping if your amp starts to run out of puff.

[chris_b]

I don't know much about this stuff, like you, I usually adjust (or not) to the room by ear and feel. Luckily I've found that with my current rig flat is good for 99% of gigs.

The detail is : Open Strings (about): “B” @ 31 Hz, “E” @ 41 Hz, “A” @ 55 Hz, “D” @ 73 Hz, “G” @ 98 Hz, “C” @ 132 Hz.

[Delberthot]

If I am using my rig as a monitor then the only controls I'll normally adjust are the volume on the amp and maybe the tone on the bass from gig to gig.

When there's no pa support, I'll only tweak a little bit.

I couldn't be bothered to have to adjust everything every night - once my sound is there then I tend to leave it. Its handy if you have a good sound to begin with

[mrcrow]

sound checks let you set your eq

the frequencies...are apparent and more bass is felt rather than heard.
ears wear out..bums dont

[Daquifsta]

This:
[url="http://www.independentrecording.net/irn/resources/freqchart/main_display.htm"]http://www.independentrecording.net/irn/re...ain_display.htm[/url]
was posted by somebody in the sound on sound forum a couple of weeks back, and is quite a lot of fun to play with, or at least colourful

[Mr. Foxen]

This program AP tuner I use to tune at my pc has a frequency analysis function, fairly interesting to see a breakdown of the harmonic content of your bass output.