Can a new Cambridge 540p be so loud?


I just got my restored Dual 1219 with new old stock shure v15 type 2 up and running. I am running it through the cambridge 540p and can't believe the rumble. Ground for the Dual is fine and I checked with another turntable (which is 3 times louder). Is it possible that the Cambridge is this loud?
markus1
What does this filter do to the rest of the signal? The signal sounds just fine but this rumble just sucks! The way the tt sounds now I can't even listen to it. Would loading the money gun help or is this just a flaw in the tt?
There is no comparison between the 540 and 640. The 640 is way better (I own one). You need to try a different phono stage before throwing more money at the problem. I love the 640 but your table may have issues with Cambridge?
I have this rumble isolated to the idler pulley. I will wait for parts before I mess around with the phono stage. This does not have anything to do with the 540p.