Regarding Spikes and Clicks
This sounds like a clock issue. Do you have a BNC-BNC 75ohm cable connected between the two machines? If not, do not pass go, we've found the most likely problem. I apologize for not mentioning it in the last post but I was addressing issues of control and timecode and assumed that this very essential connection was already made.
The rule goes like this: Every digital device has an internal oscillator clock. When interconnecting digital audio devices together with a digital audio connection (such as T-Dif,Lightpipe etc) only one device in the chain can be master and all others must be slaved to that same clock. If each device is set to be the master, (which is probably the case here)the samples will not line up in the transfer causing very nasty clicks and pops in your audio.
In theory, you can make a clock connection through the TDIF cables but the Word Clock connectionwith BNC to BNC cable is universal and pretty rock solid. Not all TDIF devices are created equal but that's for another discussion.
*you will want to turn off, or turn down any studio monitor speakers that are connected to your DM-24 before proceeding.
You will need a 75ohm BNC to BNC cable to make this very critical connection. Most Guitar Centers will have this on their wall from Whrilwind, Hosa or even their own house brand. I would suggest that you connect one end of the cable to the Word Clock Out BNC connector on your DM-24 and connect the other end to the Word Clock In BNC connector on your MX-2424.
To check and change the clock settings for the DM-24, hit the Shift Key and then #3 on the DM-24 keypad. If it is not already set to Internal 44.1 then choose it by navigating to it with the cursor keys manually and hit the enter key.
Next go to
the MX2424 and hit the Set Up button and then press the up arrow two times until you reach menu 002. Hit the Trim key and change this setting to "External Wordclock". Menu 005 should already be set to 44.1K as a default but if it isn't, change the setting so that it does so. Again to keep these changes from reverting back after you power down your MX, you must go to Menu 900 and hit the Store key to keep the new settings as a default.
The leds on the front of your MX2424 should have the 44.1K light, 24 bit light, and the Sample Lock lights lit solid. Of course your DM-24 needs to be on and connected as described above.
This should take care of all the clicks and pops. If not, we'll go from there next.