I bought a Metallica with a pinball pro speaker upgrade already installed.
If I have to crank the sound level to about 50 to just be at a good volume. At its loudest possible setting it's not terribly loud.
I find this odd because my Ghostbusters with stock speakers is loud at about a 4.
I watched the pinball pro installation tutorial video and the setup looks ok.
Anyone experienced this or have tips for a fix?