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Posted: **Thu Mar 05, 2026 12:52 am**

Is the EBB623 a new Eastman model? I can't keep up with all their models?

What is this based on? And... is it any good?

Posted: **Thu Mar 05, 2026 6:21 am**

the infallible Google wrote: Thu Mar 05, 2026 12:52 am
The Eastman EBB623 is a professional-level 5/4 size "Germanic" style BBb tuba, frequently recognized as being heavily influenced by or similar in design to the Miraphone Model 91. It features 4 rotary valves, an 18-inch bell, and a .835-inch bore, designed for a large,, orchestral sound in a relatively compact wrap.

Sorry for being a smart aleck: 4 hours of sleep turns off my social filter. It’s good to “see/hear/read from you”.

Posted: **Thu Mar 05, 2026 12:52 pm**

The EBB-623 has been around for some time but was overshadowed by the -562, then -825/825V.

If you liked the GR-51 better than the Miraphone 191, then the 562 or 825 would most likely be your preference. Ergonomics are quite different on each model.

Posted: **Thu Mar 05, 2026 2:27 pm**

It’s an exact of a Miraphone 91. I had one, liked it a lot.

Posted: **Sat Mar 07, 2026 9:47 pm**

Thanks, all! Yeah, it does have the weird proportions that the 191. Not really my bag. Thanks.

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