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    Yes it would be. Perhaps shack up with a nice...

    Yes it would be.

    Perhaps shack up with a nice punter in Manhattan overnight.

    See my attachment below.
    Thatís what l would doÖLol. Why do the round trip when you can rise to the occasion the...
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    Hi Phil, The trains are very good over there....

    Hi Phil,

    The trains are very good over there. They are actually on time. Iíve always commuted by train to and from NYC when visiting. As l recall l had to change trains at Jamaica to get the Long...
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    Hi David, How is it going? It occurred to...

    Hi David,

    How is it going?

    It occurred to me that with your experience with the 4425 and 4430 those are 100 x100 bi radials and two way. The key difference is the 4429 horn is asymmetrical and...
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    Break in period of one to two months would...

    Break in period of one to two months would hopefully be a factor.

    I hope they do come around as there is nothing worse than initial disappointment
  5. I posted over on Diyaudio.com in one of Patrick...

    I posted over on Diyaudio.com in one of Patrick Bateman threads proliferating the virtues of the M2 style horn. It will be interesting to see if Patrick posts here.

    ...
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    Glad you have a sense of humour on my in joke. I...

    Glad you have a sense of humour on my in joke. I will always recall your guided tour of NYC back in 2004. I remember before we left to go into the city your amazing late wife Issa saying ď lan you...
  7. No worries. Over on Diyaudio Lyn Olsen did a...

    No worries.

    Over on Diyaudio Lyn Olsen did a very long thread on an Altec 416 with an Oblate wave guide. The Altec woofer trades efficiency and a larger enclosures for Xmax low in a smaller box....
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    You would have needed a Road Atlas to find your...

    You would have needed a Road Atlas to find your way back home wouldn't you ya....ol.....faaaart.
  9. Getting the 2451 compression driver ready for...

    Getting the 2451 compression driver ready for testing tomorrow. Robert S kindly provided these flanges.

    Unfortunately the studs on this particular driver where slightly bent because the idiot who...
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    Hi David, The 4429 looks to be a very nice...

    Hi David,

    The 4429 looks to be a very nice system.

    Below is a review FWIW.

    I note your comment on the height of your stands.

    One of the things that upsets the tonal balance is the...
  11. My 2451 drivers arrived today. I will check...

    My 2451 drivers arrived today.

    I will check them out over the next couple of days and see how they go on my M2 horns.
  12. Block diagram of network attached.

    Block diagram of network attached.
  13. Hi Scott, Thank you for posting this...

    Hi Scott,

    Thank you for posting this measurement.

    If you have time email me this REW file. I will have a squiz at the file once I have eaten my prawns. Then add the passive high pass filter...
  14. Hi Scott, I hear you. It can be addictive....

    Hi Scott,


    I hear you. It can be addictive. Sometimes l just keep going and the time just flys. Itís fun connecting with people who are interested in this type of thing.

    Once l have my new...
  15. Just a heads up I will edit and make these images...

    Just a heads up I will edit and make these images larger later today. I have to update some settings in the software. If you would like pdf attachments for hi resolution download images I can also do...
  16. Hi Robert, Please find attached the result of...

    Hi Robert,

    Please find attached the result of using the 476 files you sent with the Ultra Simplistic 36db LR passive high pass crossover.

    The principle is the same as Scott's 2451 file...
  17. H Widget, Yes its really cool. I've also...

    H Widget,

    Yes its really cool.

    I've also been looking the measurements "Space " and how this information can be shared. I have posted how this can be done.

    With portability of the data at...
  18. Hi Scott, Please find below a result I...

    Hi Scott,

    Please find below a result I obtained tonight with the Ultra Simplistic M2 Passive High Pass Network.

    Attached are the FR, voltage drive and impedance. Once I obtain the full 2451...
  19. Hi Scott, Rob and Earl, This afternoon I put...

    Hi Scott, Rob and Earl,

    This afternoon I put all the available curves together in three graphic files for a baseline view of what we have here.
    There are two FR files. One with the data as is and...
  20. Given the heads up from Earl l figure it would be...

    Given the heads up from Earl l figure it would be a good idea to think about setting the stage for some common ground with our measurements before the project starts to get busy with numerous...
  21. Hi Scott, It was my first go at it. I fell off...

    Hi Scott,

    It was my first go at it. I fell off a lot and got lots of inspiration from everyone watching from the shoreline. Eventually l was standing on the board and paddling for about 2 minutes...
  22. Hi Earl, Thanks for chiming in and posting the...

    Hi Earl,

    Thanks for chiming in and posting the comparisons.

    In the absence of readily available comparisons l wasnít sure what to make of Scottís measurements.

    Hi Rob, you raise a good...
  23. I received some files from Scott this morning....

    I received some files from Scott this morning. Thank you.

    I have had a look at the 2451 measurements.

    I think the best way forward is to put it out there and compare with the 2430 with the 2451...
  24. They might not be original JBL diaphragms. ...

    They might not be original JBL diaphragms.

    Unless you pulled them apart itís sn unknown.

    It could also be jbl changed the diaphragm during production. There were a number of iterations of this...
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    Which pre amp power amp do you currently use?

    Which pre amp power amp do you currently use?
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