Been there! But back in the day I bought an 80-8 (still have it).
The machine was pre-Dolby, but it had noise reduction circuitry that boosted the high end onto the tape which significantly reduced the hiss of bounced tracks.
I believe the Beatles used it on some of their earlier recordings.
OH, heck yeah! I borrowed one of those 80-8 machines for a few weeks. Faster tape speed = magic high end. I was amazed. Clanky little bells became dreamy tinkly things.