The Plangent Process playback system? Huh?

This from the Acoustic Sounds description of the upcoming box of the first seven Springsteen albums:

"Using the Plangent Process playback system, noted for its ability to correct pitch errors and other distortions in the magnetic tape, this is, hands down, the most detailed take on Springsteen's high-energy studio performances anywhere."

I've never heard of this Plangent thing. Does anyone know anything about it?

I'll be buying this box no matter -- I've long loved these records -- but would be absolutely thrilled if they were somehow made to actually sound, well, better than they used to. Even when I was spinning "Darkness on the Edge of Town" on a crappy little department store stereo back in the 1970s, I remember thinking that the record didn't sound so good. Growing up to a real system only confirmed that, and made me long for more. Here's hoping these remasters will give us what we've been missing all this time.

Thanks.

-- Howard