Xavier welcomes Fredo back to the show after a short absence and the two discuss the HBO film Phil Spector. Fredo does a lot of heavy lifting in the conversation and they talk about the man, the movie and a get into a small argument of Let It Be, an album Spector had a hand in producing.
Since Xavier did such a poor job of explaining Spector's "Wall of Sound" technique, here is a better description:
Spector's signature sound, his arrangements called for large ensembles (including some instruments not generally used for ensemble playing, such as electric and acoustic guitars), with multiple instruments doubling many of the parts to create a fuller, richer sound. Spector also included orchestral instruments - strings, woodwind, brass and percussion - not previously associated with youth-oriented pop music and reverb chambers re-amping the sounds to create a larger soundscape.