First of all a big thank you for the positive remarks!!
A general observation that should be taken into account is the fact that the clustering of "original recordings" against echo devices is the main reason why a rather universal interface (read eTAP2) was (and is!!) required. As an example, for the Meazzi disc echo only a handful of "original recordings" are applicable. for some clusters there are even sub-clusters of"original recordings" due to the inability of the early Meazzi echo devices to deliver in a consistent manner (or being alterred by the user for that matter). It is also a known fact that the design tolerances of the Meazzi gear was very poor indeed.
As, for our JPatch developments, most of the amplification levels are obtained firstly through in depth analysis of the "original recording" before being linked-up with the specific echo device's timing/amplitude contrains and then grouped in a parent/child relationships as the chosen way to manage the structures.
I agree with the statement that, for optimal quality of a patch, most electronic units presently in use are not fit to be candidates to emulate the specific tape/disc characteristics as they lack resources and other inabilities to product an emulation that delivers a quality echo. eTAP2 idea to develop was born after we've noticed that we never could get our exact requirements fulfilled on the other gear we possesed. After about 400manhours of very interesting work eTAP2 delivers all those elements and is used around the world in soundstudio's and 6000+ other places.
Presently, I know of a handful of DIY initiatives , including ourselfs again, to produce echodevices based on the multi-head configuration we all need.
The "effects" market is at this moment only interested in the singular type of devices as modern echo's can be achieved by 1 head and multitap functionality. Therefore, most of the new devices, including the already existing digital units regarded as capable on producing delays are not capable of producing delays longer then 240mS or starting to distort for our required 700-800mS timings. I'm sure, given time, solutions are forthcoming.
-Piet
also for Jacob