Thankyou for your well considered and thoughtful response.

(Hope you didn’t get slammed too hard by the PR department widgets.)

I doubt any of them would be aware of the forums but Google search is. Particularly if your search patterns include Jbl or M2. Google algorithms have become smart and create your world. This was subject of a discussion with Obhama on Letterman’s recent Netflix interview with Obhama.

I agree with your point on the naming of diy attempts at Jbl clones. In particular the diy model name reference to current production needs some thought.

We are now seeing 43xx naming of systems using not just alternate Jbl drivers but XYZ brand drivers. But don’t you think Jbl have made a rod for their own backs by turning off supply of a number of genuine Jbl re cone kits like the 2122H. That was really dumb.

Concerning technical insights in the past we have been very fortunate to have had something of a solid technical insight for diy clones of the vintage 43xx and 4344 series and to a certain extent the Array series, the S9800 and the DD66000.

So if we are looking at it from the diy builders perspective on the M2 the diy builder is either going to complete Charles Sprinkle’s M2 tick sheet with a stamp of approval to validate his M2 diy system (Sprinkle would possibly be flattered given the hard yards he’s done).

Or

The diy person does not know what does not know (unfortunately) concerning the fine but important details that impact on the M2 performance and calls his project something else.