Scott,
I had Bob do the most extensive level 3 upgrade as it would also make the amps much more reliable in addition to the improved sound. Everyone that has had Bob at TDSS upgrade their amps has been very impressed with the sound afterwards. Compared to upgrading your ICs, PCs or SCs, or putting in high end fuses, the TDSS upgrades make a bigger difference in SQ. I would most definitely think about giving Bob a chance to make your IDA-16 an even better component than it already is. The sound will not get away from the stock Nuforce or Nuprime sound, it will just be better in all areas--or in the case of a level 3 upgrade, a lot better!
I had Bob do the most extensive level 3 upgrade as it would also make the amps much more reliable in addition to the improved sound. Everyone that has had Bob at TDSS upgrade their amps has been very impressed with the sound afterwards. Compared to upgrading your ICs, PCs or SCs, or putting in high end fuses, the TDSS upgrades make a bigger difference in SQ. I would most definitely think about giving Bob a chance to make your IDA-16 an even better component than it already is. The sound will not get away from the stock Nuforce or Nuprime sound, it will just be better in all areas--or in the case of a level 3 upgrade, a lot better!