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how to fix the muddy sound

So I had a living room rehearsal for a few songs last night. The amp was right on the floor and my wife was all acoustic (guitar and vocals). We were trying to be on the quiet side, because teh kids were sleeping.

My TKO was set like this:
pregain: 7.5 (about 2:30 in the "clock" analogy)
bright: out
contour: out
low shelving: 3 (1 o'clock)
high shelving: 0 (12:00)
40hz: -15db
100hz: -3db
250hz: -2
625: +8
1.6K: 0
4K:
10K: -15
master volume: 1.5 (8:30)

I'm playing a Warwick FNA, active electronics set about flat, sometimes with the bass and/or mids boosted a bit (under 50%)
The bass sounded loose and undefined. Especially when we got going and our volume got higher. However, I started to lose volume, and then the lower notes really started to make that "farting" sound. I checked my battery, and it was still sending about 8.5 volts. (I used a multi-meter) I read somewhere that they usually need to be replaced when they're around 7.5 volts.
Not sure what to make of it all. I think I'll try boosting the EQ around 1.6K, but I don't like that "glistening highs" sound so much, so hopefully I can avoid that.
MAybe I just want a new amp. I played an 800RB once that I just loved:p
 
So I had a living room rehearsal for a few songs last night. The amp was right on the floor and my wife was all acoustic (guitar and vocals). We were trying to be on the quiet side, because teh kids were sleeping.

My TKO was set like this:
pregain: 7.5 (about 2:30 in the "clock" analogy)
bright: out
contour: out
low shelving: 3 (1 o'clock)
high shelving: 0 (12:00)
40hz: -15db
100hz: -3db
250hz: -2
625: +8
1.6K: 0
4K:
10K: -15
master volume: 1.5 (8:30)

I'm playing a Warwick FNA, active electronics set about flat, sometimes with the bass and/or mids boosted a bit (under 50%)
The bass sounded loose and undefined. Especially when we got going and our volume got higher. However, I started to lose volume, and then the lower notes really started to make that "farting" sound. I checked my battery, and it was still sending about 8.5 volts. (I used a multi-meter) I read somewhere that they usually need to be replaced when they're around 7.5 volts.
Not sure what to make of it all. I think I'll try boosting the EQ around 1.6K, but I don't like that "glistening highs" sound so much, so hopefully I can avoid that.
MAybe I just want a new amp. I played an 800RB once that I just loved:p

It sure sounds like dead battery behavior to me. Did you tongue test the battery? When the battery voltage falls to 8.5V open circuit it might be time to change it, but the tongue test is my standard.
 
The EQ you quote is probably conflicting with the guitar a lot, I have the 100 and 250 at zero, 40 at -15, 625 at -6, 1.6 at -9 and both 4k and 10k on -15. I've never used the amp in question, but these settings are where I'd start for a bass/acoustic guitar duo.

Sounds like an electrical fault though, did you have the same problems at the venue or did that sound muddy without the electrical fault? If you had the fault at the venue then it's not worth attempting to fix anything with EQ until the faulty part is replaced or fixed.
 
What I do at rehearsal when using a small combo, is place it against a wall to enhance the bass, and then I adjust the eq to push the mids a bit and roll off the treble. Then I suggest you adjust the acoustic guitar's eq so that there are no frequencies competing with yours. Roll off the bass and boost the treble a bit. When it comes to room acoustics, positioning and eq adjustment is usually the fix.
 
animvl said:
Sounds like an electrical fault though, did you have the same problems at the venue or did that sound muddy without the electrical fault? If you had the fault at the venue then it's not worth attempting to fix anything with EQ until the faulty part is replaced or fixed.

seems like there's a bad output jack on my bass. The local guys are having a heck of a time getting the replacement part. I had to take pictures of my bass and email them to a guy at WArwick. Apparently my serial nber is not registered or something...
Pretty strange, hopefully it all gets resolved SOON!
 
FINAlLY got the input jack from the store. Brought it to an old friend that I remembered had a small repair business, and he swapped it out no problem

He also does professional sound, so he's hired! Has all his own gear and everything, can't wait to have everything set up. The gig is in 3 days.

I have a new rig (Shuttle 6.0 with Avatar B210), learned and rehearsed 15 originals, and it's been about 10 years since playing in front of a live crowd (which I never did that much anyway). Nervous as hell...