[quote name='barry44' post='283051' date='Sep 13 2008, 08:51 AM']i gigged the K5 last night, via my sansamp, and i am still smiling. 
 
i opened up both the frequency controls to allow everything through and WOW, this thing was amazing. 
 
so, so pleased that i went with this pre amp as i definitely have the sound the playability of this bass deserved. 
 
if anyone is thinking of getting the ACG pre amp, i thoroughly recommend it. 
 
my mates were even commenting on the change in the sound of the bass as i think they were previously getting annoyed with the old pre amp in practise as it just did not kick it. 
 
i even woke the wife up to tell her how good it sounded, she wasn't as overjoyed as i would have thought....[/quote] 
 
I also had the same problem with the same model, still do!  
But it is a wonderful bass to play and looks amazing. 
I'm also going to play around with it alot more and try to get the settings right, as I too couldnt get much out of the A,D,G strings.