The MM1 series only supports line-level inputs, so as long as your turntable outputs a line-level signal, it can be used with the MM1 or MM1BT.
Product: MM1, MM1BT
The MM1 series only supports line-level inputs, so as long as your turntable outputs a line-level signal, it can be used with the MM1 or MM1BT.
Product: MM1, MM1BT