If you want to be able to decode the piece to a new speaker configuration at a later date, you probably want to record the WXYZ signal that goes to the ambisonic decoder as a four channel audio file. You can do this with an sfrecord~ object. Normally you don't record the signal that you send to the speakers, because this is no-longer an encoded ambisonic signal.

ahh okay thanks i'm working on the wxy as its a flat speaker pretension. will i use one object per output of the ambi decode?