Truss Rod and Tuning

[Purple_Coyote]

Hello!
Three months ago, l bought for my 5-string Cort Curbow a new set of strings (d'addarioXL). Then l joined a doom/stoner band. The 2 guitars and me, tune our instruments at C standard. The way l tune my 5-string bass is: from B.E.A.D.G. --> C.F.A#.D#.G.
So, l tune half a tone up instead of going 4 down. The type of my strings is "fat" (l remember they had on store available and a thiner version). After these tree months, l think my bass neck needs to be re adjusted, because when l play on the first fret of every string the sound is weird. And also when i switch back to standard tuning, it feels like all strings are on the neck and they feel very loose when playing. Soooo.. any advice? Is truss rod the problem?

[testing1two]

Before you tinker with anything, watch these four videos: http://www.youtube.com/watch?v=te44eWXd9pc

Also read the setup stickies at the top of this thread. Then you will be able to better diagnose the problem.

[202dy]

Originally Posted by Purple_Coyote

Hello!
when l play on the first fret of every string the sound is weird.

What is weird? Does it buzz? Waver? How does it sound different?

And also when i switch back to standard tuning, it feels like all strings are on the neck and they feel very loose when playing.

Of course it does. There is less tension on the strings.

Soooo.. any advice? Is truss rod the problem?

It might be the solution. Not enough data here to diagnose anything.

[Purple_Coyote]

I messed with my truss rod, fixed the issue.

[jmclearnon]

Extra tension will bow the neck more, it needs adjusted to remove fret-buzz.