Wow! The custom veneer is awesome on your speakers. My Montanas are actually all custom. They were built with a transmission line design for a guy that liked low wattage SET amplification. I bought them used from his estate. They have a suspended tweeter. I will post another picture...it is a wild design. They sound great though!
I noticed you have a Nottingham TT also.
Have you tried different cartridges with your turntable?