Quote Originally Posted by Simon Barden View Post
You'll probably only notice the difference between 500k and 1 meg if you've got a cab with a tweeter in. For most pickups, the extra frequencies that will get through are above the frequency response of a 12" or 15" speaker. But it won't do any harm to try it out. If you notice anything, it's going to be a lot smaller difference than between 250k and 500k pots.
Thank you Simon. All my 4 x 10 cabs and 8 x 8 and 8 x 10 fridges all have tweeters. I do not use any bass cabs without tweeters as the tweeters help cut thru the bottom end to give clarity to the bottom end tone that the bass produces. Otherwise the bass sound will be too muddy for my liking. I also have a 12, 15 and 18 inch cabs i use as well.