The midi file I made has 10 tracks on it.  Are you saying that it can't be imported as is? 
 
That'd be a horror to have to save each track and then import it.   Or am I confused about the directions?
 
Is there a video that might explain this for the direction-impaired folks like me? 
 
Thanks

debb
but when I see the mixer and click the note at the bottom, I still hear no sound.  Maybe the basic settings are screwed up?

When you inserted the TTS-1 did you let SONAR create the first audio output track? If not, you need to insert an audio track and set it's input to the TTS-1. The track receives the output of the synth and routes the signal it to the Master bus, and from there to the Main outs on the audio interface.

He said he clicks the TTS-1 and gets no sound from the preview,,, If that is happening then this is a audio output routng issue, not input to the tts-1. 
My guess is the TTS_1 meters are moving when  the file plays. 
 
Check the TTS-1 output is set to your Master and that your Master is set to your interfaces outputs that are connected to your monitor system. 
 
I don't use x series but with 8.5 I never import. Always OPEN You will loose data like tempo from the original. I have a 100 or more old tracks of mine from my Atari days.
 
 
The tracks will retain the channel assignments and PG patchs. 
 
I then insert the TTS-1 ( good starting point for now) 
 
CTRL A to select all tracks
 
Then in 8.5 it is top menu - TRACKS / PROPERTIES / OUTPUTS/ MIDI you then select the TTS-1. This just saves doing them one at a time. 
 
If you return to the same menu you can also set OUTPUTS/ AUDIO to "master" 
 
of course this is probably different in X series but I would (hope) it's similar. 
 
 
 

John
No that is broken Dave. Its a bug and has been confirmed. When you open a MIDI file global output wont work. It has to be done one track at a time. A work around is to save the project and it may work when it is reopened. 

John, I just tried it on a MIDI (.MID) file with 19 MIDI tracks. I inserted the TTS-1. Then on the first track I held down the CTRL key and selected the TTS-1 as the output and all of the MIDI tracks changed their outputs to the TTS-1. I didn't even have to select the tracks. 

Was that imported or loaded Dave?

Thanks. I'm taking notes. Much appreciated!  :)

John
Was that imported or loaded Dave?

File-Open. 

Dave you are right. It will work with soft synths. However, it will not work with hardware synths. I Don't use TTS1 as a rule. I have a Roland Sound Canvas for that.   

Thanks. I'm taking notes. Much appreciated!
 
I have a hardware synth but am trying to learn software
synths. 
 
Thanks!

Debb - You are probably a bit frustrated now, but just hang on a bit.
 
When you imported your MIDI file into X2, all that was imported was the sequencing information.  You need to also load one or more synthesizers to play the midi tracks that you imported. 
 
The TTS-1 synth is a good one to start with as it can play 16 different instruments (patches) at the same time.  The Synth actually creates the sounds, not the MIDI tracks. 
 
The first step after you have your MIDI tracks imported (or loaded or whatever) is to patch each of these tracks to an instrument in the synthesizer.  If you look at the bottom of the inspector view for a MIDI track it should have a dropdown box for output.  If you set this to one of the 16 inputs on TTS-1 it will play that MIDI information to that channel of the TTS-1.
 
On the TTS-1, you will probably need to select the bank and patch.  A bank is a set of up to 127 different instruments(sounds) like piano or trombone.  TTS-1 has about 20 banks of patches.  select a bank (bank 0 is good for starters - preset rythm for drums) and then pick an instrument.  Do this for each of your 10 tracks.  Select a different channel on the TTS-1 for each of these tracks or you will send the notes to the same instrument.
 
Now look at the output for the synthesizer track.  It needs to be set to something that gets to your speakers.  This is usually a bus when you get a little more familiar with things, but for now you can point it directly to the output device (that is assuming of course that you have gotten your hardware configured in Sonar so that it can be accessed).
 
Glen