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RE: 16 horns measurements




There is a considerable disparity between the measurements taken of the RCA MI 1428 driver on the AH300 horn at ETF from our measurements. I've attached our impulse curve, for example, for comparison. At the OMA site I will add some additional curves, such as frequency response, which significantly deviate from those shown at the link in this thread that were done at ETF.

The impulse curves show the RCA MI1428 vs. the much more modern TAD driver for comparison. This measurement was done on an industry standard TEF analyser, with ACO calibrated lab microphone. This is a curve that can be reproduced by any lab anywhere at anytime.

Jonathan




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