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DizRotus

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Posts posted by DizRotus

  1. Yeah, I remember rusty cars in Ontario. People didn't sell their cars because they were worn out, they sold them because they became too ugly. Some people even avoided buying white cars, because the rust would be more obvious...

    Few brands were immune to the road salt. I saw rusted-out Benzes, and once even a Rolls-Royce with a rust hole in one fender.

    You're right about rust. Corvette bodies avoid the cosmetic rust but the steel frames of forty-year-old plastic bodied cars eventually succumb to rust.

    Detroit sits on a salt mine. Seems like a conflict of interest.

  2. You guys have some Great looking landscape. The size of the ponds, the look of nature. I don't think I'll show these to SHMBO as I'm afraid she would want to take out 2 year old project and redo everything.

    I'm guessing SHMBO means "She Who Must Be Obeyed." If I'm incorrect, what does it mean?

    JB-

    You're too quick. You quoted my comment about cranes before I had a chance to edit and correct the spelling. My only defense for the misspelling is my incorrect recollection that the bird is spelled differently from the construction equipment. I confused it with Crain Communication, a local business.

    I know people who've resorted to putting screens over their ponds to foil the birds. That's problematic for you and impossible for dtel. What's the season for herons on Pluto?

  3. Ok, I'm convinced. Probably not a bad price given your location. :)

    The battery will cause the cone or diaphram to move in one direction or the other if you flip the battery. It will sound like someone thumped a finger on the cone. Listen for any sound other than a clean thump. It's an easy way to test each driver independently. Seems like too high a voltage can be dangerous though. I bought two of my LaScala from a guy I met on the interstate at a gas station. It was a way to have some confidence when a demo isn't possible.

    I too bought two of my La Scalas from a guy I met on the Interstate at a gas station. In my case, the guy was the forum's own Michael Colter and I demo'd the La Scalas by playing Take Five from my laptop. The guy and I then enjoyed lunch in the truck stop diner. Michael ordered meatloaf, I wasn't so brave.

  4. If you scratch the speaker leads across the ends of a AA battery, you'll hear a thump from the woofers and scratching sounds from the squawkers and tweeters. The test can be done without getting to the individual driver leads. Not so with a multi-meter.

    I too have used 9 volts, but not anymore. One AA battery is plenty.

    New Crites woofers are an upgrade over old original woofers.

  5. http://anchorage.craigslist.org/ele/2501659200.html

    Make certain the tweeters are working. Stuff a rag in the squawker or use a carboard tube to isolate the tweeter to confirm output, I agree that the price seems high for anything but the best looking La Scalas in the lower 48. The market in Alaska is another matter.

    Some here caution against using even a AA battery (1.5 volts) to test voice coil continuity. I've done it without problems, but I'd never try it with a 9 volt battery.

  6. "The woofer should be a 4 ohm and should read a little under 4 ohms when you measure resistance. Those look like Klipsch K-33Es which would be right, but often someone has them reconed and end up with the wrong parts inside. A real common mistake that recone places make is to use an 8 ohm voice coil in them. With an 8 ohm voice coil, you would lose 3db of output from the woofer and the crossover frequency would be messed up."

    Bob Crites

    It seems to me that Bob hit upon the problem and, therefore, the solution. The woofers appear to have 8 ohm resistance where 4 ohm is called for.

    The other suggestions regarding proper phase, sealed backs, room placement and even new caps are valid but won't overcome having incorrect woofers.

  7. artto said," But yes, I'm wondering how legitimate the whole thing really is. I'm sure we're not getting the whole story from that video. Fascinating none the less."

    artto-

    I've no doubt 3-D printing is real, but I still don't understand how a tool with moveable parts can be scanned and "printed" without first disassembling the original and scanning each part individually, then re-assembling the printed components. The Z-Corp white paper (an attempt to attach it failed due to file size) doesn't answer my questions. The white paper can be downloaded at the Z-Corp site (http://www.zcorp.com/en/forms/3DP+Tech+Whitepaper+-+Website/form.aspx). Perhaps I'm dense.

    The machine shown in Jay Leno's garage is one from Dimension http://www.dimensionprinting.com/ . The video at that site is interesting but doesn't explain to my satisfaction how an original with moving parts can be duplicated with operating parts. In the Jay Leno segment of My Classic Car, Jay fingers a gear cluster that he "printed" and a power transmission chain he'd printed. Apparently, Jay went cheap and bought the $14,900 version that doesn't print in color. According to the Dimension's site, the color printing version is $19,900.

    Do I think Jay Leno and several companies are part of a giant conspiracy to propagate a hoax? I do not. Nonetheless, it still surprises me that Z-Corp would use an obviusly flawed video to promote it's prroduct. Explaining that a lengthy process had been compressed for a video is understandable, but "printing" a wrench that is unlike the original is inexcusable. That's just the kind of opening conspiracy theorists love to exploit.

  8. I've seen this before. Jay Leno has one in his well stocked garage, as seen on Speed Channel's My Classic Car (Season 15: Episode 18). The Z Corporation's website (http://www.zcorp.com/en/home.aspx) seems legitimate.

    Despite my total inability to understand how it can replicate 3-D moveable parts without first disassembling the item and scanning each individual part, my inclination is to believe this until it's proven to be a hoax. That said, the YouTube video in Artto's OP, is deceiving. The wrench scanned and the wrench "printed" are not identical. Note the scanned wrench has a round hole in the handle; the "printed" wrench has a wire ring attached to the solid handle.

    Why would the producers of the video make such a mistake? Perhaps the process was speeded up for the purpose of the video and the wrench that was originally scanned was unavailable for the filming so they scanned another wrench. Without disclaimers, such obvious discrepancies open the door for doubt.

  9. My best advice is to upgrage both your tweeter diaphragms and your mid diaphragms to new Titanium units you will not be sorry as they in a whole other league when compared to the phenolic diaphragms. Bob Crites sells the tweeter diaphragms for $60.00 the pair and Klipsch will sell you new mid diaphragms for about $185.00 pair. I have not included shipping cost. Best regards Moray James.

    Does Bob sell titanium diaphragms for K-77s?

  10. Nice work...

    I'm building my special edition of Cornscala ... I have a question if you can help me (I've bought parts from Bob except Crossovers because I wanted to figure the cabinets out first)

    Q: What if a Cornscala Bass section has no PORT? should I change the crossover? will a cornscala with no bass-port sound better?

    tnx

    Arash-

    If you're using a K-33, I suggest not changing the balancing network (except modern capacitors) and don't eliminate the port. IMHO you should keep the cabinet volume and port configuration as close to the CW as possible.

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