Welcome, George! A good friend of mine owns a DT-30D and just purchased a DT-30GACE. He was recently told that all of the DT models were actually made in 2019 and have since been discontinued from new production. He's on a search for a DT-30OM to complete his trilogy. The COA is the date that it passes final inspection at the Eastman shop in Pomona, CA, but the actual production date can be earlier. In many cases, they dates are close, and that's what we all refer to when we call something a 2022, 2021, etc. But sometimes, Eastman has inventory from earlier, so it can be a previous year (or two).
All of this to say... I am 99.9% sure your DT-30D is Nitro b/c they were all made with Nitro in 2019, irrespective of the COA date. I own both and can't tell the difference. I'm sure those MDs are both Truetone.
All of this to say... I am 99.9% sure your DT-30D is Nitro b/c they were all made with Nitro in 2019, irrespective of the COA date. I own both and can't tell the difference. I'm sure those MDs are both Truetone.
"It's only castles burning." -- Neil Young
