Sausy, you can put more than one PC compressor in serial - I used to use the PC76 and Cake Opto emu all the time. I just put both on a track to make sure that hadn't changed. I just never realized you couldn't put more than one 76 in line before this thread since I never tried to do that. Cake designed it that way, so they must have not thunk it necessary to have 2 76s on one track. They must have their reasons - funny.
But you should really try the Ca-2A comp from Cake. Emulates the la2a, the other must-have hardware compressor which has a different tone and different slope than the 76. The 1176 into an La2A has been pretty much the standard vocal chain since the 70s. Of course, it takes some time to learn how they work together to make them sing, but when they do, it is a sound you will instantly recognize (esp. on older stuff where they used the hardware versions - most of the time that limited the number of units available so the most important tracks got that treatment [one reason old vocals and leads stand out from the rest of the tracks which didn't have that 1176/La2A magic]).
The Ca-2A is probably the favorite comp here on the forums from Cakewalk. Trigger warning tho: I have colleagues who drop $100 on a compressor or $50 on a gate and the next month $125 on EQ. Whatever is the latest thing. After a year they've spent enough on software emus they could have bought a piece or two of high-quality hardware instead. And if you've ever had a good guitarist play a nice instrument in a decent room into an 1176 and captured the tone that is heard on hundreds hits, you'll grow cautious about buying seemingly inexpensive plug-ins. So I am perfectly happy using the 3 PC units 90% of the time (including the SSL buss comp, which is magic, well, on busses) for itb. Get the opto and you will be pretty well set on software comps.
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