Nakamichi Dragon, as well as the CR7A in the modern grouping.
DBX does often like higher levels. But even speaking to a gent from Dolby Labs in the 80's the reason that many didn't like nr is that they were recording at lower levels and killing the sound.
Your machine seems to be tweeked in some way as I've found your numbers to be a minimum for dolby with DBX being higher. Also, tape seems to be unable to record certain waves so it does change the sound. I found harsh CDs much more articulate when I would run it to tape Dolby C. but i used to record listening to the third head for the "sweet spot" or stereo center image after studying the music. I couldn't get a good recording going just by numbers. Also, warm up all gear before recording for that last little bit of definition.
DBX does often like higher levels. But even speaking to a gent from Dolby Labs in the 80's the reason that many didn't like nr is that they were recording at lower levels and killing the sound.
Your machine seems to be tweeked in some way as I've found your numbers to be a minimum for dolby with DBX being higher. Also, tape seems to be unable to record certain waves so it does change the sound. I found harsh CDs much more articulate when I would run it to tape Dolby C. but i used to record listening to the third head for the "sweet spot" or stereo center image after studying the music. I couldn't get a good recording going just by numbers. Also, warm up all gear before recording for that last little bit of definition.