A:AnswerThe AT92ECD would be a suitable replacement for the DR400E. The only difference between these is that the DR400, which was our best P-mount model at the time, used a nude mounted tip and the 92ECD uses a bonded tip. Currently, we do not make a P-mount model cartridge of this quality. If you are interested in replacing the stylus assembly only, not the entire cartridge with stylus, consider the following replacement stylus https://www.lpgear.com/product/ATN3472NE.html .
A:AnswerAs near as I can tell from photos, the cartridge mount on the PL 15D is the common (2) screw mounting type. This cartridge comes with the bracket for that type of mounting.
A:AnswerUnfamiliar with SL-2000 but if cartridge mount is the very common (2) screw mount then yes. This cartridge comes with a removable mounting bracket. The picture posted on the Best Buy site is with the bracket removed. I own a Panasonic SL-H401 from around 1980 and this cartridge will work with it.
A:AnswerYour turntable requires a P mount cartridge, this fits the bill. I'm using it on an old Technics SL-QS300 that requires P mount. Works fine and the old vinyl sounds great.