Pioneer DEH P930 Questions

[The Natural 0]

I have an old Pioneer DEH P930 that is in need of repair. I believe it needs a new ribbon cable, but no matter...my questions center around the deck's features.

One of my favorite features of the unit was it's capability to make low bass from recordings where there was none. I never checked the output on an RTA, but I would be willing to bet that the effect is that of an Epicenter, where a bass line is created one octave below the lowest notes in the original recording (if I remember reading that correctly).

The owner's manual mentions an "Octaver" function and "Dynamic Bass Emphasis"... does anyone know which of these two features is creating this effect? I called Pioneer and they cannot tell me, and I can't tell from the description in the owner's manual. The "Octaver" would be my first guess, but there is not a good description of it in the owner's manual.

I have not been able to find another head unit with a function such as this, does anyone know of one? I am going to try to get my old Pioneer repaired because I love the sound and features, but I may just add an Epicenter anyway in case I want to add a USB deck into the mix.