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In Reply to: RE: Semantics posted by Davey on September 29, 2014 at 06:57:07
Yes, the horse is long dead but I am very curious to get a definitive answer on the standoffs for the various models.
The T IVa sensitivity spec is, shall we say, "in doubt". I don't have actual measurements but the T IV was not an 87 db speaker. The bass panels are 85 db raw (without the XO) so long as you don't reach levels where they compress. 85 db would be a very generous figure for the whole speaker (or actually the mids).
Follow Ups:
Stereoplay measured the Tympani IVa. http://www.forumbilder.se/DE2MF/tympani-20iva.jpg
It was found to be 3 dB more efficient than the Infinity RS1. 84 dB/W/m. Compression begins at 103 dB for both in the range 40-400 Hz.
Thanks Roger, also thanks for the scattered details on the differences in magnets wire/foil and spacer dimensions. If it isn't too much of an effort could you point to what models had which structural aspect?
I am thankful that someone stepped in with his observations of the differences, for a minute there I was thinking I may have been "seeing things" for 30+ years.
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