CalifZeke said:
"Too sterile"...that's a new one. Again, this is odd, we are able to create any type of signature with Omnia. It is clean, punchy, and loud.
The Omnia does a very good job at trying to get a very unprocessed sound out of AM. It does not have the depth Optimod has. I have never heard an Omnia AM station that really stood out as sounding killer
to me, of having that big sound and having that presence on the dial.
The Optimod, OTOH, could be either dense or have that unprocessed sound. The 9400 (like the 9100) does a good job of building density in its multiband stage. Call it sterile or transparent, the Omnia just doesn't do that and if you TRY to make it happen with fast release times, it gets ugly. There are people who prefer that transparent sound no matter what they're processing and that is OK. In some cases for AM, I do as well. But when I need 5th gear, the 9400 delivered. Of course, you sacrifice clarity with the extra density, but the processing artifactes the 9400 trades off for loudness (slight pumping.. that "compressed" Orban sound) is better than the Omnia trade off for loudness (noticable clipping of voice).
It should be noted that the 9100 would get very tubby and the highs very synthetic and slightly "lost" when run with alot of density. I still thought this was better than just listening to midrange clipping from the Omnia, which, while doing so, did preserve some of the highs a bit better. What makes the 9400 sound better is that it is able to emulate that sound, but without the highs getting lost or the bass getting tubby.
I also thought the bass on the Orban was more consistant and, while the box was more consistant overall cut-to-cut (another thing some users may NOT like), I think overall, tonal consistancy is paramount for AM, especially since may are now processing for lower bandwidth. The Omnia has a more FM type approach where the processing is more accurate to the source. This may be what you were looking for and if I had a music station with the traditional NRSC curve, this is probably how I would go.
My mistake was not making off air recordings of the two processors as we were working on them. I would liked to have had audio examples to exhibit.