thanks wayne,anyway i am not good at running number, i will just wait for the drawing , i have already bought the alpha 8 and i can try the psd 2002 on on pi 4, if the pi 8 are really good then i will buy another pair of the psd 2002 so both the pi 4 & 8 will be ready to form my DTS system
thanks, please keep me inform.
gabriel