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  1. Replies
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    The TBD are the parts on the actual crossover...

    The TBD are the parts on the actual crossover cards. We have the schematics for the XPL-200 cards and several others on the site. Must admit not for the faint hearted to DIY.

    Rob :)
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    The 3uf 9uf and 120uh are the 18db network. The...

    The 3uf 9uf and 120uh are the 18db network. The 7uf 200uh and 10 ohm are the notch.

    Rob:)
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    It's 18db with attenuation and a notch filter....

    It's 18db with attenuation and a notch filter. Not sure of the cutoff have to plug it into LEAP.

    Rob :)
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    Hello Widget Don't you remember all the hub...

    Hello Widget

    Don't you remember all the hub bub about the Everest having -6 @ 45Hz?? Same thing banana curve, did you find the Everest bass shy?? If you put them in a small room or close to room...
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    Figure .5- .71 on Widgets curves is about right....

    Figure .5- .71 on Widgets curves is about right. It's how Greg typically tunes his boxes. The anechoic -6 point seems high but with room gain or EQ it fills in nicely. An example the K2 9900 has a...
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    The LE5 is connected reverse polarity with the...

    The LE5 is connected reverse polarity with the other drivers. If you look at the wiring diagram posted for the system it makes sense. The male terminal on the driver is connected to the White/Black...
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    That sounds high as you will be able to "hear"...

    That sounds high as you will be able to "hear" where the sub/subs are. Why don't you just set them up at 80hz and be done with it?? As long as the integration works it's really a moot point if it...
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    I just did a Google search for Altec crossovers,...

    I just did a Google search for Altec crossovers, Tags and these came up. Glad to help

    Rob:)
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    A close up might help Rob:)

    A close up might help

    Rob:)
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    Thanks Guys! Rob:)

    Thanks Guys!

    Rob:)
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    Lol! Rob:)

    Lol!

    Rob:)
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    So is that a horny dog armed with a chisel or a...

    So is that a horny dog armed with a chisel or a chiseling horndog??

    Rob:)
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    Thanks! I had them dialed in before I...

    Thanks!

    I had them dialed in before I finished the cabinets although I haven't powered them up yet so I don't know how lossy my cabinets were using just a couple of screws. Also hopping I don't...
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    One done one to go! Rob:)

    One done one to go!

    Rob:)
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    Well got a top finished and a bass veneered seem...

    Well got a top finished and a bass veneered seem to match up well. Have to formica the bass cabinet top and bottom. Now for some lesson's learned.

    I got 10mil backed veneer with psa? glue which is...
  16. Thread: Jbl 4349

    by Robh3606
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    They look great! See you got the stands to! Glad...

    They look great! See you got the stands to! Glad you are happy with them. So how do they image with the new waveguide?? I really enjoy my M2 waveguides if they are anything like them must be...
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    Thanks Widget! Rob:)

    Thanks Widget!

    Rob:)
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    Thanks Chris Rob:)

    Thanks Chris

    Rob:)
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    Sanding filing and filling! Beautiful weather...

    Sanding filing and filling! Beautiful weather today! Getting a lot done both tops ready for sealing. Working on the bottoms. Have a flat black eggshell coming tomorrow for the backs and any exposed...
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    You are missing the point it's the combination of...

    You are missing the point it's the combination of impedance and phase angle. Looking at the impedance curve the worst case is not at the expected low point of 4.9@ 92Hz. So looking at just the...
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    Something to consider this is from a Stereophile...

    Something to consider this is from a Stereophile article about how speakers stress amplifiers. Phase angle can be as important as minimum impedance. This is the Array 1400 so this is an Le-14-3 and...
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    It's been rain, rain and more rain. Wish I could...

    It's been rain, rain and more rain. Wish I could send some of it west. Just finished getting my second top routed and ready for veneer and formica. Doing walnut first then doing formica tops to...
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    Here you go, found here: ...

    Here you go, found here:


    http://www.audioheritage.org/vbulletin/showthread.php?10656-JBL-Professional-Links

    Network Schematics

    Rob:)
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    Well if you look at a 2203 vs 121 you have 35g...

    Well if you look at a 2203 vs 121 you have 35g and the 95g. They also used a stiffer spider in the 121. You could just add a ring over the voice coil on top of the dome/cone. 35 grams only change the...
  25. Thread: Vintage Audio

    by Robh3606
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    Hey guys check this out. I have a bunch of my...

    Hey guys check this out. I have a bunch of my dads old stereo stuff and I thought that looked familiar! This is the circa 1955 version!

    Rob:)
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