I agree with a lot of the comments here.

If you compare out of the box Trifield with out of the box Direct, you will find that Direct is better at acoustic instrument spacing and soundstage depth. However, Trifield when adjusted more than overcomes Direct's out of the box advantages.

My adjusted Trifield is simply astounding. Direct does not compare favorably in any way. I do agree that Trifield out of the box adds a lot of bass that I tame with the Trifield bass adjustment by comparing it with the bass from the Direct mode.

The parameters I have found that are crucial to maximizing the sound quality of Trifield are: depth, width, center channel volume, and frequency EQ (I set the EQ at full range, which prevents the "dull", rolled off sound that some people hear).

You really have to methodological about making adjustments. For instance, I will compare the standard Trifield to the augmented Trifield +1 depth, augmented Trifield +2 depth, etc., leaving all other settings the same. You have to isolate the changes like this because changing multiple settings will affect the overall sound quality, making it hard to know exactly what a single change sounds like. This is a very tedious process, but is well worth doing. When properly adjusted, Trifield will sound so good that you will think you have upgraded your processor.

Damon