Changing Note Pitch of a Channel

[Timmmm]

Hi,

how can i best make a channel a half note (or more) lower?
without changing the speed of it.

I already used the pitch-thing in cubase , which isnt perfect imo.
Also tried the line6 gearbox effect "bender" but i dont know how to set accurate notes with that.

I mean i dont want to change seperate notes or something like with melodyne(which i dont have).

Just the whole track.

What can you suggest me for this?

thanks