Hey Youthman,
Very nice setup, especially for an 11 year old!!!
The P\DD-1500 is not only a surround processor, it's also a very capable DAC, not a paper weight.
This DAC can be hooked up without the db 25 cable & also, without the SP-1500 processor.
To integrate it into you're system, run either a Toslink or a 75 ohm coaxial cable from the CD player to the corresponding input on the back of the processor,
then run RCA patch cables from the processor to the pre-amp analog CD inputs.
What this does is it bypasses the DAC in the Integra & utilizes the DAC in the Parasound processor.
I have both the P\DD processor & the P\SP pre-amp & I use them in seperate systems.
The P\DD I use only as a DAC for an Audio Alchemy CD player & a Squeezbox.
The P\SP is in my bedroom rig as a 2 channel Pre-amp.
Hope this helps, enjoy!!!