DBX SYSTEM IN CASSETTE DECKS

[michalha]

Is there anybody who knows, how the DBX noise reduction system works in cassette decks? I have Technics RS-M270X and there are two position while I recorded with DBX, one is Tape and one is Disc? Am i right if i think, if i want to record music (from CD) with DBX, I have to switch to the Tape position a record and when I listen i must switch to the tape position too? The disc positon is only for recording from the DBX encoded Disc (gramophone record)?
Please anybody to aswer me. Thanks.