@brjoon1021 Welcome to the Carver site!!
 
	 
 
	Nice to have another DTL user.
 
	 
 
	I currently run and select between three digital sources that use my DTL. I accomplish this by using a dbx 200X.
 
	 
 
	Each of the digital sources are connected to the tape deck 1,2, and 3 IN tape jacks. Don't need to connect to the out on the dbx since I'm not recording on any of the CD players.
 
	 
 
	The Carver DTL is hooked up to Sound  Processor loop #1 utilizing both the in and out connection.
 
	 
 
	Your preamp is hooked up to the LINE out on the dbx to the preamp in connection, I used the CD input on my Marantz.
 
	 
 
	
 
	 
 
	If you look into a dbx unit make sure that it has jumpers on the encoder and decoder connections like in the below picture. They are necessary to have unless you are using an encoder and decoder in your setup.
 
	 
 
	
 
	 
 
	There is a switch, BYP (bypass), on the front of the dbx unit that allows you to have the DTL in or out of the signal path.
 
	 
 
	Prior to deployment of the dbx unit into my system I cleaned all the switches and checked every solder joint. The nice thing is that it has no plug nor power supply at all.
 
	 
 
	And that's the way to share three digital sources with one DTL.
 
	 
 
	Hopefully this helps.
 
	 
 
	Ps, download the DTL manual found on our site. It states that the DTL needs to be installed between the CD player and the preamp.
 
	 
 
	The manual for the dbx unit is available here,
 
	https://www.hifiengine.com/manual_library/dbx/200x.shtml