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Jorge
Austin TX
Posts 141
Joined on 10-17-2010
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22552
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fiogf49gjkf0d About vibration, there is this technology championed by AR9 a few years back and now seems to be everywhere. Opposing woofers, the force cancelling technology says the movement of one driver gets cancelled by the movement of the other and no vibrations (or less) are created.
There is a nice video explanation of the concept here though it is not hard to grasp really.
https://www.youtube.com/watch?v=rBmnfpGg7uw
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Paul S
San Diego, California, USA
Posts 2,644
Joined on 10-12-2006
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fiogf49gjkf0d I like the idea of "opposing drivers", and I like the (proven) notion that extraneous motion will "self-cancel". But aren't these things typically in "smaller" cabinets"? Also, how well do they do "mid-bass"?
Paul S
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clarkjohnsen
Boston, MA, US
Posts 298
Joined on 06-02-2004
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fiogf49gjkf0d Depending, somewhat, on the town you're moving into, you'll need to pull a construction permit.
But whether or not you must, it might be a good idea to hire a licensed engineer to okay the mods. That's what I had to do to create my large room out of two smaller. (Bearing walls and all that.)
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noviygera
Chicago, IL
Posts 177
Joined on 06-12-2009
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fiogf49gjkf0d I would be most concerned with having the turntable where kids can reach it. This has proven to be very problematic! Son climbing speakers -- not a problem.
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Romy the Cat
Boston, MA
Posts 10,132
Joined on 05-27-2004
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fiogf49gjkf0d We are closing our new house in 2 weeks and while packing
and preparing to move I am thinking about the configuration of my new playback installation.
I am debating with myself about going with sub 100Hz woofer tower as I
described above vs. introduction of midbass channels. As I took my Vitavox 15
incher out of my horns I got horny again from the way how their diaphragms response
and I again consider to let those drivers to show themselves off. So, an idea
of a new midbass channel begin to drill my mind. I certainly do not consider
NOW to go for new midbass channel. We
kind of expecting more kids soon, so the grandiose projects with time-aliened
40Hz horns in new hour will be on hold for a while. However, having a number of
Vitavox 15 drivers I wonder why no to build a cheap and simple sealed array
with let say 3-4 driver per side. Those driver are not exactly best for direct
radiation but it will be many of them and I need juts one upperbass octave! I
am kind of thinking about it more and more. I have a limited width for my installation
in new room. The Macondo along with equipment stand shall fit into 20 feet.
With second 15" line array it might be a bit tight but I still think it is
doable. I probably will order a cheap car-audio enclosure of 1.2 cub feet for
the driver to try how it will sound in sealed direct radiator. I do not have a
lot of experience to get upperbass from sealed topology. Whatever I did with
sealed boxed was open bottom lower bass. Still, if the Vitavox array will behave
nice in sealed box it might be an interesting solution.
"I wish I could score everything for horns." - Richard Wagner. "Our writing equipment takes part in the forming of our thoughts." - Friedrich Nietzsche
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scooter
Posts 161
Joined on 07-17-2008
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fiogf49gjkf0d I found 2 recent room upgrades made life more comfortable:
1. We recently installed a "cork" floor. Acoustically it is quite pleasing, as it is finished with some semi-gloss sealant but also quite sound absorbent naturally (irregular texture/soft surface, it is a 3 layer laminate, we added a layer of optional foam above the subfloor). It looks nice, is soft to walk on, and was cheap inexpensive. It somehow blends with the hardwood of adjacent rooms. The designer promoted it as an "environmentally" friendly laminate; it is not super durable so replacement say every 7 years (?) is not that "eco".
2. Air purifier. I purchased for spring allergies. Real bonus was 90% less dust on gear. Also can
remove allergens and clean the air. For options, this sick guy seems to be independent given the
harshness of some of his reviews and tips for creating DIY filters:
http://www.air-purifier-power.com/top-10-air-purifiers.html
I
have a sharp plasmacluster and it works fine and is quiet on the low
setting. The carbon filters seem to smell sweet after a few months;
replacing them with a fresh DIY carbon filter solves that smell.
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