billfitzmaurice
Seasoned Veteran
Last Activity: Yesterday, 09:45 PM
Joined: 11-11-2006
Location: New Hampshire
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Boxes and bins make the shop tidy, but I went away from them because I could never find anything without going through them all. I went to hooks so I... -
8x6 feet is too tight. My backyard shop is 12x12, which I find just right for my needs.Leave a comment:
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I have hooks on the walls. With corded tools I wrap the cord around the tool, in the process creating a loop to hang on a hook.Leave a comment:
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It may never again be more than a memory. The ability to hear high frequencies continually diminishes with age, starting around 20. There are so-called...Leave a comment:
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80 degrees is too narrow, assuming you have an audience of more than one or two. Keep in mind that 80 degrees is a nominal average, and that it will be...Leave a comment:
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I wouldn't use a horn loaded tweeter with 80 degree horizontal dispersion at listening distances less than 15 feet. I also wouldn't use an MTM along with...Leave a comment:
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With floorstanders you can't place the low frequency elements and midrange/high frequency elements where each gives the best result, which is seldom if...Leave a comment:
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All of them, at different levels, with more absorption as frequency is increased. At 3cm you might be reducing 15kHz by 30dB, but 500Hz at only 3dB. As...Leave a comment:
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No bass frequencies are absorbed, it would take a foot or more of foam to do that. Too much damping extends absorption to the lower midrange, with the...Leave a comment:
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The problem with this arrangement is comb filtering. That, not the woodworking complexity, is why you seldom see this scheme employed.Leave a comment:
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If you are already low passing the sub then high pass the mains, but not with just a cap. Second order is the minimum useful slope.Leave a comment:
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It seems like a good idea at first glance, but every 6dB of bass boost doubles the cone excursion and quadruples power requirements on both the amp and...Leave a comment:
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A simple cap doesn't work well for a variety of reasons, including but not limited to those listed above. It also doesn't do the other half of the job,...Leave a comment:
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That does come reasonably close to the original AR woofer, which had a 19Hz Fs. The sensitivity is overstated, it's actually 85dB, but that's what one...Leave a comment:
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Make it 4th order. All it takes is one more cap, so the added investment is trivial. This opens up the possibility of a small faceless tweeter, which...Leave a comment:
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That's true of first order filters, but not with second order or higher. You wouldn't think Eminence would get it wrong, but in this case they did....Leave a comment:
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You don't need to cross that low to avoid a 6kHz peak. Use a third order low pass at 3.5kHz and you'll be fine. It would be a shame to waste that driver's...Leave a comment:
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The original Acoustic Research and later KLH woofers listed as twelves were actually tens as far as the cone diameter was concerned, with oversized surrounds...Leave a comment:
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Modernizing the woofers may be challenging, being acoustic suspension. Finding the T/S specs for them will be difficult, if not impossible. You may end...Leave a comment:
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By and large I use my circular saw and boratool clamps when rough cutting parts from a full sheet of plywood, then the table saw for trimming them to...Leave a comment:
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