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  1. Replies
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    4,658

    I was having a discussion with a fellow audio fan...

    I was having a discussion with a fellow audio fan last week and i referred to myself as a practical audiophile. That defines me as someone who loves music on decent equipment that sounds good to me...
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    107
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    152,388

    If you have a 4350 system it would be possible to...

    If you have a 4350 system it would be possible to test your drivers for box tuning and impedance then move to the 4351 and run the same tests. You can measure box volume accurately by closing all...
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    3,032

    I've built several sets of Pass crossovers for...

    I've built several sets of Pass crossovers for the L300. I've even done a bi amp version.
    If you are interested in a set on PCBs PM me and I can help you. I've also done sets with new pots as well....
  4. Replies
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    86,182

    I don't post like I used to. Life gets in the way...

    I don't post like I used to. Life gets in the way like that.
    I came here 17 years ago looking for drivers to make a pair of 4411 speakers. I succeeded and still have them today. I contributed a lot...
  5. Thread: Jbl 4642a

    by duaneage
    Replies
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    5,534

    I would measure the parameters of the drivers and...

    I would measure the parameters of the drivers and verify what box and port they need to perform at their best. Also it will allow you to check the drivers are related in specs.
    But maybe a box...
  6. I use a crossover breakout box which gives me the...

    I use a crossover breakout box which gives me the ability to swap out values immediately and incorporate custom values as well. I have two so I can do 3rd or 4th order networks.
    Horns are tough and...
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    2,975

    I like the 4411 which has a great woofer and a...

    I like the 4411 which has a great woofer and a very proper crossover. It voices flat , forward and back and was produced a little longer than other studio monitors. For my money the bass is...
  8. Replies
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    31,656

    I would vote for the 150a since the woofers are...

    I would vote for the 150a since the woofers are my favorite. I've designed systems with both woofers and think the 128h offered better performance, lower F3 and smaller cabinet. The 150 is unique as...
  9. Replies
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    424,828

    Sticky: Work for Bose and really get even. When they...

    Work for Bose and really get even.
    When they hustle you out the door it's really personal
    One minute you are a part of something then your an outcast
    i went through that 7 years ago and today...
  10. Thread: Crown Amps

    by duaneage
    Replies
    136
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    154,883

    I just got a Crown XLS 1000 and I am very happy...

    I just got a Crown XLS 1000 and I am very happy with it. Only 11 pounds. The internal fans don't come on even under hard use and it has RCA inputs as well as balanced. The amp has internal crossover...
  11. Thread: Box for 2213H

    by duaneage
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    9,865

    Forget vents for those drivers. A sealed box is...

    Forget vents for those drivers. A sealed box is probably best and that would be 2.5 to 3 cu ft for each driver

    that would be about 100L a piece but if you stuff your 54l box with fiberglass or...
  12. Copying another system has it's pitfalls too. The...

    Copying another system has it's pitfalls too. The crossover network affects the box tuning a lot so if better or worse inductors are used the box needs to reflect the new Qts and Qes which results....
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    That cable should work fine at audio frequencies...

    That cable should work fine at audio frequencies and power levels.
  14. I've had a 120x-ds for about 25 years, mine is...

    I've had a 120x-ds for about 25 years, mine is the home version. It has 4 bands of adjustable gain which allows fine tuning of where the bass is augmented. There is a full range or high pass switch...
  15. I would start with a sweep of the driver to...

    I would start with a sweep of the driver to determine the resonant frequency of the drivers you have. Don't rely on published specifications, measure it. Then once you have Fs start at 3 times that...
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    If your repair shop can't troubleshoot a preamp...

    If your repair shop can't troubleshoot a preamp using plug in op-amps that are identical throughout then I would find another shop. They aren't that complicated.
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    I built many a system with the 2214 H. I also...

    I built many a system with the 2214 H. I also have a pair of L100T speakers. Let me tell you what I know about them.

    The design software usually specs a 1.7 Cu ft box tuned to around 50 hz. This...
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    Get the 2.7 and wind it up to 2.8 by adding wire...

    Get the 2.7 and wind it up to 2.8 by adding wire of the same gauge and giving it a few turns while measuring the value.
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    Here is a tip for the screws .... I use gun...

    Here is a tip for the screws ....

    I use gun blue to blacken screws. It gives a great durable finish that is dark enough. Won't work on stainless or zinc. Great restoration on the cabinets, it's...
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    121,446

    Might be easier to just play the instruments...

    Might be easier to just play the instruments yourself. Eliminate all electronics that way.
  21. Replies
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    The 128H and the 2214H are very similar except...

    The 128H and the 2214H are very similar except for the obvious cone difference. I've built a lot of systems with both and prefer the 128H, hands down. It produces better bass in a smaller box whereas...
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    2,655

    I would look at the brass connectors on the...

    I would look at the brass connectors on the drivers, they might have bad connections. I replace them with new connectors made from alloy not brass.
  23. Thread: RIP Zilch

    by duaneage
    Replies
    98
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    92,878

    I need to connect more on this site, been busy...

    I need to connect more on this site, been busy doing too much else.

    Zilch just wasn't a guy posting about speakers, he was a reference and store of knowledge that seemed boundless.

    I can't...
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    I got double refined MDF free of formaldehyde...

    I got double refined MDF free of formaldehyde from Russel Plywood in New Castle Delaware. They stock 1 inch and can get up to 2 1/8" special order. 240lbs a sheet. I like the double refined since it...
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    I've reworked numerous L100T crossovers to...

    I've reworked numerous L100T crossovers to L100T3 specs. There are at least three versions of the original L100T network, two on PCB and one with wire posts, and all have the same part number.

    I...
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