Do I Need An Audio Interface? Which One?, Audio interface DX7 MIDI Sequencer Setup Options

Hello!

I've got PTFree, Logic 4.8.1 installed on my imac OS 9.2.2.
Concerning MIDI, my DX7 is connected to the imac via the Midiman Uno 1*1 (Midi Interface).
I've connected the sound output of the DX7 to the mic input of the imac via an adapter but when I record/play a midi track on any of my sequencers, there's just NO SOUND going out of my imac!
Actually, the only possibility to hear this sound is to listen to the DX7 via the headphones or to connect the sound output of the DX7 to my stereo!

It seems like I need an audio interface since my imac is not expensive enough to provide me with good staff (the internal speakers are worse than any ones on PCs....let's switch!!!)....
Which one would you recommend me?
How is the delta 44 from midiman ?

Finally, as a beginner , I'm wondering what else should I get before beeing able to RECORD MUSIC?!

thanx !

[Levon River]

I've got a Marantz analog multitrack recorder, so do you consider that as an appropriate mixe?

I didn't even know Marantz made multitrack recorders, so I have absolutely no idea. Depends on what kinds of in/out capabilities, preamps, and monitoring options it has whether it will serve your needs or not.

In that case I'd just need the specific adapter you described.
did you mean black-red cinch cables actually? How could I connect that to the mic input of the imac?

It's just a short little "Y" cable, or a solid adapter. In either case it has female L/R (guitar plug or RCA, depending on what you're using coming out of the mixer) on one end, and a stereo miniplug on the other. You need two of those: one to go into the computer from the mixer, one to come out of the computer to the mixer.

It seems Midiman is better than Edirol, am I right???

Depends on who you talk to. As Rickenbacker said, there's been a line at the M-Audio complaint desk. You might oughta check other options.