I agree with Whart about the extreme VTA sensitivity of the Titan. A change of as little as .3mm of height at the armpost (Vector arm, which is 9" in length), makes a substantial change in the sound.
JBatlanta, as you have noted, going to a higher numerical value of resistance in the loading (which actually DECREASES loading because it is in parallel), causes the bass to thin out. You would get a similar result by increasing VTA (raising the armpost of the tonearm). Thus, the two adjustments have a similar, but not identical impact on sound. This means that if your VTA is too high, you could sort of compensate by choosing a lower value loading; this would sound okay, but not ideal. I think it might be worthwhile to change VTA and then reset your loading by ear to determine whether you can get even better results.
The 25 ohm value you settled on seems to be low (a lot of loading), based on my experience and that of another Titan owner. Our phono stages are different, though we both use tube stages with a step up transformer at the front end. It could be the right setting in your setup, but it could also be compensating for too high VTA. That is why I suggest experimenting with lowering your arm just a bit, and then seeing if a different loading would get you to an even better result.
Have fun.
JBatlanta, as you have noted, going to a higher numerical value of resistance in the loading (which actually DECREASES loading because it is in parallel), causes the bass to thin out. You would get a similar result by increasing VTA (raising the armpost of the tonearm). Thus, the two adjustments have a similar, but not identical impact on sound. This means that if your VTA is too high, you could sort of compensate by choosing a lower value loading; this would sound okay, but not ideal. I think it might be worthwhile to change VTA and then reset your loading by ear to determine whether you can get even better results.
The 25 ohm value you settled on seems to be low (a lot of loading), based on my experience and that of another Titan owner. Our phono stages are different, though we both use tube stages with a step up transformer at the front end. It could be the right setting in your setup, but it could also be compensating for too high VTA. That is why I suggest experimenting with lowering your arm just a bit, and then seeing if a different loading would get you to an even better result.
Have fun.