Ampex AT-102: +0/-4 dB 20 Hz - 20 KHz
Sony APR-5000: +1.5/-8 dB 20 Hz - 20 KHz
Studer A820: +1.5/-7 dB 20 Hz - 20 KHz
Otari MX-5050: +2/-9 dB 20 Hz - 20 KHz
Otari MX-80: +2/-4 dB 20 Hz - 20 KHz
MCI 2-inch: +2/-7 dB 20 Hz - 20 KHz
Otari MTR-100: +1/-8 dB 20 Hz - 20 KHz
Otari MTR-90: +2/-9 dB 20 Hz - 20 KHz
Studer A820: +1.5/-? dB 20 Hz - 20 KHz
Studer A827: +1/-5 dB 20 Hz - 20 KHz
Studer A80 Mk II: +2/-3 dB 20 Hz - 20 KHz
Tascam MS-16: +2/-9 dB 20 Hz - 20 KHz
Tascam ATR60-16: +1.5/-8 dB 20 Hz - 20 KHz
Ampex MM1200: +-4 dB 20 Hz - 20 KHz
Otari MX-80: +1.5/-2 dB 20 Hz - 20 KHz.
So you want to put forth facts? Which Studer A820 is it? I see you have 2 there, but there were many versions.... same with the A80MkII... is that the VU or RC or QC or what?? I have clearly bested these figures in my testing of these machines. I have the graphs to prove it posted somewhere on this forum.
I think Mike has you on this. Anyone can look up specs, which is clearly where you got these from. I have run tests on the actual machines and have posted my measurements.... have you. On top of that, I have worked with these machines for decades, listening critically to each one.
I was also the first (and only) mastering studio in the PNW to use DSD, so I'm not anti analog or digital.
Julf, we appreciate you participating in the forum, but unless you have worked with both formats on a daily basis, all you bring in anecdotal evidence. Hardware technology changes almost weekly and unless you're constantly keeping track of this and using it in your own system, your ship many have sailed! Even hardware builders listen/tweak their products beyond specifications!