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i can't believe it. I've never been a proponent for tweaks, but as my stereo gets more revealing, some of this crap actually works!I'm currently using a pair of KEF 104/2 with Vifa MG27 tweeters (great tweeters BTW). given, my McIntosh MC60s are a little over matched for the 104/2. the bass sounded vague and boomy as you need more current to control the bandpass woofers.
I've been using my KEF Calinda and janszen Z-200, but decide to revisit the 104/2. from my experience with my old AR3, the boomy, muddy bass went away when i put them on stands. so, being the upward firing woofer backs to the bottom of the speakers, the 104/2 should definitely be decoupled. i put them on my Calinda stands (9" AVF metal stands).
wow, much better. then i remembered that my friend gave me two pairs of microscan anti-resonance devices. the SW-2 and the D-8. i used mounting tape and affixed the SW-2 to the back of each speaker, directly behind the front firing port. then, i placed a D-8 on top of each speaker.
I CAN'T BELIEVE IT! the bass is controlled and defined, the imaging become fricken perfect (the soundstage was always big). i guess the microscans got rid of a lot of the cabinet resonances so that the mids/highs can break through the muck. can't wait to get my modded quad 405-2 back from my tech.
god damn tweaks! i still refuse to actually pay big bucks for them. i gotta have my standards ;-)
Follow Ups:
nt
They work by converting one form of energy into another. In this case, it is vibration to heat.Yes they work and work exrememly well at mitigating the colorations caused by vibrations induced into the cabinet structure via the drivers, especially the woofer. They are also very effective in other applications as well. Try placing one on the top panel of your CD player and have a listen :-)
I think Micrascan was the first to the audio market with a vibration absorber but their products didn't fare too well. Then Tekna-sonics came along with a somewhat different approach and seemed to do pretty well with their C-5, C-10 and C-12 vibration absorber products.Cheers,
thanks ken,right now i have what looks lik the original pair mounted on the back and the later D-8 pair resting on top. the D-8 look more like the tekna-sonics. should i just leave them on top or mount both pairs to the back of the cabinet?
reason i'm asking is once i use mounting tape, they arin't comin' off too easily.
so, is there a benefit to having a pair on top of each speaker (just resting there - not mounted) or tape both to the back?
"so, is there a benefit to having a pair on top of each speaker (just resting there - not mounted) or tape both to the back?"These devices are most effective if the interface between the absorber and the speaker is very intimate.
That is why the Tekna-sonics absorbers employ the magnetic pads. One pad is attached to one of the speaker panels and the other is attached to the absorber and the strong magnetic attraction makes for a VERY intimate mating surface.
"so, is there a benefit to having a pair on top of each speaker (just resting there - not mounted) or tape both to the back?"
The varying sizes of absorbers are "tuned" to different bands of frequencies and one needs to experiment with the absorbers to see which size is most effective for each application. If it were me, I would experiment with the D-8's on components rather than doubling up on the speaker OR U could try mounting the D-8's to the base of your AVF speaker stands :-)
What type of tape R U using and is the whole contact area being utilized? Remember, the absorbers efficiency will be drastically reduced if only part of the contact area is used.
U may want to check out the magnetic sheeting at the link provided.
Cheers,
~kenster
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