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In the Forum: Audio Discussions
In the Thread: Contributing factors in compressed sound
Post Subject: Contributing factors of compressed sound.Posted by malinowski on: 8/24/2007
Thanks Romy,
I would have thanked you sooner but I had the day OFF of my day job today and had no time to post until now.
*cracking up*
I had a feeling there was no easy answer, wasn't sure if I was missing something, had scoured posts for a while and never saw one.
Anyhow, thanks.
"The sensitivity of acoustic systems is defiantly the key but the highest sensitively number is not automatically brings higher absolute dynamic range. There are many factors in loudspeakers that are responsible for compression but the irony is that by intellectually take care of them would not be an assurance of better subjective dynamics."
It would be interesting to tackle a piece of this topic at a time. In this case I was thinking about what effect the pitch, size(in relationship to freq.) and material of a membrane or cone might have on this "compression".
Two examples stand out in my mind, the ScanSpeak drivers you use for lower bass are oft noted for lacking "compressed sound" characteristic, also the TAD tl-1102 (94db 11" alnico) drivers have been said to exhibit this same quality. Duke LeJeune tested a lot of drivers looking for ones that had this quality and really liked these. Now, looking at them both (own a pair of each), I notice how they have some similarities... both have relatively (and unusually) flat cones (less coned? sorry i don't know the term for this geometry) and both pay careful attention to the quality and properties of their paper.
Which leads me to wonder if the pitch of the cone might be one contributing factor?.. most compression drivers are also relatively flat.
Hmmm...
this is why i was curious about the supravox 165-2000 drivers.. they look like the tl-1102's and the Scan Speak 25W/8565-00.. the three combined in sealed enclosures and a raal ribbon might make and interesting experiment for a "monitor"
an even better experiment in context with this thread.. might be to create a variably pitched cone.. so see what extent this one area contributes to this phenomenon... any volunteers? lol
ok. thanks for your ear/s and input..
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