The *best* volume controls?

[Rig]

Hey guys.

So, I need some volume controls for my Julie. This is my first pachinko machine.

I currently have three pachislo machines. One of them is extremely loud (Ultra Cutie Honey), even with all the volume controls on their lowest settings! (Not good for an apartment...)

It has different volume controls when compared to my other two machines. Now, it could be Honey is just a louder machine...or, it could be the volume controls in my other machines are "better". (Or, could be both; Honey does have four speakers!) All of the volume controls were installed before I got the machines.

My question: Is there one volume control available for sale you think is "better" than the others? I'm guessing some of you have to have a bunch of different types. Which ones work best? (Link would be lovely.)

As always, thanks! EDIT: Dang, put this in the wrong area...mods, please move!)