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In the Forum: Horn-Loaded Speakers
In the Thread: Macondo 3.0
Post Subject: Latest YouTube.Posted by Bill on: 6/25/2023
In his latest YouTube,Romy mentioned using my prepro to time align my drivers.
I use the Trinnov Altitude 16 prepro which has a total of 20 channels. 16 of the channels have balanced analog outputs and the othe four Channels use the rca and optical spdif outputs. Eight of the channels are used as active crossovers to my main horns and the rest for the surround speakers and subwoofers. The unit acts as active crossover, driver frequency correction, phase inversion, time alignment of all drivers and speakers to less than 1/10th of a millisecond, adjustment of frequency curves, speaker distance, volume correction and room correction, plus multiple other corrections. It can store up to 29 different setups. It can then be run as a stereo unit or use Dolby, dts or auro3d processing for surround. The unit then does up to 24/96 adc or dac conversion for analog output.
As far as spatial alignment of the drivers, for approximate driver distances I use a laser distance unit, then the trinnov for accurate distance.I use a flashlight from my listening position to point at each horn's driver to align it perfectly straight to the listener's ear position. In addition, for the horn tweeters, by doing multiple tests with the trinnov, I get the flattest frequency response curve up to 20khz.The altitude has the ability to do room correction from several locations but doing this decreases the accuracy of a single listening position response. I have primary response curves for the four driver stereo horns, plus 7.5.2 curves for video and 6.5.2 for surround audio.
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