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  1. Replies
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    Looking forward to see you complete them! I have...

    Looking forward to see you complete them! I have been sitting on mine as well. One of these days

    Rob:)
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    Click on manage attachments under the dialog box...

    Click on manage attachments under the dialog box when you do a post and you should be able to just add it.

    Rob:)
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    Place holder bringing them back on line again. ...

    Place holder bringing them back on line again.

    So I don't have to find the thread again!

    Rob:)
  4. Why are you using an SPL meter?? The exact levels...

    Why are you using an SPL meter?? The exact levels don't matter just the relative between drivers. Just use your RTA with pink noise.

    Rob:)
  5. Thread: New to forum

    by Robh3606
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    Welcome Keep us posted on your project. Rob...

    Welcome

    Keep us posted on your project.

    Rob :)
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    In all of these systems the base sensitivity is...

    In all of these systems the base sensitivity is determined by the woofer with the mid and HF drivers padded down to match it. If you drop in another woofer with a different sensitivity or a rising or...
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    Not at all. You can't just drop them in and...

    Not at all. You can't just drop them in and expect them to work without verifying the cabinet tuning as well as possible changes to the crossover network. Even dropping in a 2234 which is a 2235 less...
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    Hello If I remember right he was bi-amping I...

    Hello

    If I remember right he was bi-amping I don't see anything more that a compensation circuit so run it in an appropriate crossover sim to see what's going on and what the attenuation is.
    ...
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    Here is Greg's original filter for his original...

    Here is Greg's original filter for his original system using the 9800 horn and 435Be no UHF driver. This could help you as a starter.

    Rob:)
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    Here is a measurement of a 2435 on a PTH1010 set...

    Here is a measurement of a 2435 on a PTH1010 set point for the system was about 94dB and you can see the top octave roll off. It might be better on an Array Horn but you can see the roll of will...
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    Final Be 1400 Array Clone Schematic

    Hello Frank

    This is the build schematic. Not sure how this is going to help you as it is set-up with the 045Be. I think I have some schematics preliminary without the 045 but I would be concerned...
  12. Thread: Sub18

    by Robh3606
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    1,361

    Hope there are no stairs involved! Rob:)

    Hope there are no stairs involved!

    Rob:)
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    Yeah I have had similar experiences the separate...

    Yeah I have had similar experiences the separate stand alone amps seem to do a better job!?

    Not sure why?

    Rob:)
  14. Thread: 305P MkII

    by Robh3606
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    Have a pair of 308P Mk 2 and like them as well....

    Have a pair of 308P Mk 2 and like them as well. Where do you have yours? Mine are used in my office system with a subwoofer.

    Rob:)
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    Hello Rusty Well that is a conditional...

    Hello Rusty



    Well that is a conditional statement that depends on how the woofers are set-up. The Everest only uses the second woofer up to 150Hz so no issues. Now if you ran both woofers over...
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    Hello Heather Have you ever tried a demo...

    Hello Heather



    Have you ever tried a demo with them? I guess it's important what you want to use them for. I did for HT and it's not realistic at all in the sense that you get way too much...
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    It does and if you have any doubt listen to a...

    It does and if you have any doubt listen to a 4311/L100 vs. 4410/L80t as examples. The 4311's are not mirror imaged and not aligned and the imaging suffers compared to the mirror imaged and vertical...
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    I am a little confused as well by your question...

    I am a little confused as well by your question as it gets a bit complicated. As Mike said no DSP will take a signal at the level even from a high output MM not getting into MC. For it to happen you...
  19. When I did my 4344's JBL still was doing cone...

    When I did my 4344's JBL still was doing cone kits so I was able to new 2122's from the tent sale and cores and re cones for 2235's. Now I would never start down that road with no more kits.

    Rob:)
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    Odd have to see which ones they were, that horn...

    Odd have to see which ones they were, that horn could be set-up for a 1" driver different throat. Any of the modern large format driver like the 2450SL, 2451/2452 should work just as well as the...
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    Why would you have to rescale the horn? All you...

    Why would you have to rescale the horn? All you are changing is the throat. You could just rescale the throat and leave the horn be as they are separate in the original design. You would also need to...
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    Hello Toddalin That's why it's best to try...

    Hello Toddalin



    That's why it's best to try on a simple 2 way system to see. When I built my CC L250 Jubilees and 1400 Be Arrays it got very costly compared to a standard network.

    Rob:)
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    Yes The 2" throats had a decades old...

    Yes



    The 2" throats had a decades old flare rate. The new throatless design is actually supposed to reduce distortion. There is a Technote about it
    ...
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    They are identical difference being throated vs....

    They are identical difference being throated vs. throatless. Drivers like the 2450 vs 2451 are a perfect example same phase plug the 2450 has the typical throat with a recessed screen. On the 2451...
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    Hello Derek It's 250 per channel? If so no...

    Hello Derek

    It's 250 per channel? If so no problem they will be just fine. I use a pair as subs for my mains in my HT using a Crown PS-400 @ 200 per channel. I know they recommend minimum of 200...
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