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mike maghakian wrote:
it seems that there is an issue that some people faced with this speaker but most are very happy with it. perhaps you need to look into this further and get back to us before you smear the reputation of a possibly nice speaker....... see this: http://www.eham.net/reviews/detail/4772 It's not an RF problem so ferrite beads won't help. I get feedback on pure audio. My guess is an output peak drags down the power jack voltge and that's seen by the encoder as an input, ie. a ground loop with the power cord as the common element. I've installed it in three different places and it didn't work except slightly in any of them, and produced feedback in one of them. It is of course possible that there's some place it might work, owing to a convergence of favorable circumstances, and that fraction of users may be happy with it; or it may be that I have a defective unit, who knows. My symptoms though seem to match what others are saying. No doubt if I had built it lovingly myself I'd be more investigative, and perhaps rip it apart and put a capacitor here or there and try it again; but it's supposed to work for the average guy when he plugs in an input and an output, like every other DSP filter on the market. There's supposed to be some way to get the bracket off, it says in the comments. That would be nice to know as well. Mine arrived without instructions except for a letter of praise for the unit from KD5XB and WA9UKW feedback problem. The helpfulness this shows is good, and who can put down the inclination, but the thing is supposed to work on its own. I suspect too that just fiddling with the thing will cure the feedback problem; as I say, two of the three places I tried it didn't produce feedback, though the unit didn't work as expected in any of them. The feedback just says, in addition, ``as you see, I am poorly engineered.'' -- Ron Hardin On the internet, nobody knows you're a jerk. |
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