I own a Tascam 2488 Neo. I am very familiar with its operation. I just bought a Tascam 24DP-SD. When getting ready to record, the trim knobs have no effect on the input level. They do not change no matter which way the knob is turned. On the Neo, you would turn them up until the (loudest part) of the signal clipped, then you would back them down until no clipping occurs. That is not possible on the new machine. It is particularly problematic with some (acoustic) drums as they are clipping a lot. Moving the mics back is not helping much (we never had to do that with the NEO). Please advise. I have looked in the manual and online. There are other people who have asked the same question, but with no satisfactory answers: https://gearspace.com/board/newbie-...ne/1176552-recording-drums-tascam-dp32sd.html Any help would be appreciated.