I have a Throrans TD -124 with a SME 3009 arm . Have a Shure ( V-15 type 1111 ) . It's getting old ( 10 to 15 years ) , and I'm thinking about replacing it with a red or green Grado . Hum , yes hum -- I know that Grado's are notorious for their hum on certain tables . Doe's anyone have specific knowlage of hum problems with this specific table ? Plan on spending $65 to $90 for a new cart . Love the Grado sound , but hate the Grado hum . Does anyone out there know . . . ?