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  1. Thread: KM2

    by Dr.db
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    166
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    10,447

    These are some good arguments you have made. I...

    These are some good arguments you have made.

    I have owned the 12" woofer of your 4429, the 1200fe. It is an awesome woofer, for shure. But it is not specific what I had in mind.
    The 1200fe as...
  2. Thread: KM2

    by Dr.db
    Replies
    166
    Views
    10,447

    Iīm not an expert on these specific parts you are...

    Iīm not an expert on these specific parts you are asking about, but just some thoughts:

    If Im not mistaken the 476 has a copper shorting ring which the 2450/2451 donīt have...

    I like your idea...
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    Well done! I like how the pedestal mimics that...

    Well done!

    I like how the pedestal mimics that of the 250ti`s :)
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    Maybe you can use some dusted 4" titanium -...

    Maybe you can use some dusted 4" titanium - diaphragms in your horndrivers?

    These should be available new for aprox 120$ and should be some kind similar to the 2441 type of sound.
    That would...
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    Awesome project, thumbs up!!!

    Awesome project, thumbs up!!!
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    Thanks ;)

    Thanks ;)
  7. Replies
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    Thanks a lot for this additional info`s!

    Thanks a lot for this additional info`s!
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    Yes, a stereo-amp per side would be on the safe...

    Yes, a stereo-amp per side would be on the safe side for shure. Allthough I get the impression it might not work with a single amp, I would be happier using less electronics.
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    @ widget: I think I know what you mean. You have...

    @ widget:
    I think I know what you mean. You have owned the Everest 66000 if Im correct and I believe those AL1501 woofers are a little bit more precise than the LE14H-3īs... Not mentioning the...
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    I get your idea of an augmented bass similar to...

    I get your idea of an augmented bass similar to the 4435 or everest models. Youīre absolutly right, for that purpose the LE14H-4 should be the choice.

    Iīm looking for woofers that are smaller in...
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    I thought x-max is always refeared to a...

    I thought x-max is always refeared to a distortion based measurement, whereas x-mech would be dependend on the mechanical capabilities...

    Both spec-sheets mention x-max, so I read these as...
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    Could you please explain your thoughts? Why...

    Could you please explain your thoughts?

    Why shouldnīt dual LE14H-3 work if dual 2235 work?
    I would use these below 300hz...
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    Kenny would be my choice as well. Comparing...

    Kenny would be my choice as well.

    Comparing the spec-sheets of both woofers, they have different x-max figures.
    2206 = 7,5mm
    1200gti = 5,5mm

    But the voicecoil-size and magnet system is...
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    @widget: Very insightful, thanks for sharing...

    @widget:
    Very insightful, thanks for sharing your experience.
    The LE14H-3 should behave similar to the 2235h as they use the same motor and voicecoils, shouldnīt they?

    I had a look at the Array...
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    @Barry: Thanks a lot mate ;) @Rob: I I...

    @Barry:
    Thanks a lot mate ;)

    @Rob:
    I I understood barry correct, the surround and spider should be identical. The coils seem to differ in material, but Iīm not shure about there size...
    ...
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    @widget: Thatīs a good idea, for shure. Right...

    @widget:
    Thatīs a good idea, for shure. Right now Iīm not looking to buy a specific amp, I`m rather trying to figure out if such a project makes any sense.
    If I would know that most amps wouldnīt...
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    Hi Barry, I`ll let you know about the project...

    Hi Barry,

    I`ll let you know about the project in case I will decide to proceed.
    Do you still have any 1200gti recone kits left you would be willing to sell?

    Regards,
    Olaf
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    Hi Richard, thanks for the specs on the NAD...

    Hi Richard,

    thanks for the specs on the NAD amps.
    These should work....

    I had a look at models like the Accuphase E-480 or Yamaha A-S3000. They state the usual 4-16ohms impedance requirement...
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    Hi Barry, how did you build your 1200gti`s...

    Hi Barry,

    how did you build your 1200gti`s last year?
    As far as I know there are no recone-kits available since many years...

    Your comparison of the 2206 and 1200gti helps a lot.
    I checked...
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    Amplifiers capable of dual woofers?

    I would like to build a passive diy-speaker using 2 lowfreq. woofers.

    Unfortunatelly almost all JBLīs like the 2235, LE14h, 1500FE, 2216nd are 8ohms... Using 2 woofers per box sums up to 4ohms...
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    Convert 2206 into 1200GTI

    Hi,

    I really enjoyed the JBL 1200gti caraudio woofers a decade ago.
    Unfortunatelly, there is no longer a recone-kit available for these. There are plenty 1200gtiīs available, but most of them are...
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    Widget has made a good suggestion with the 2216nd...

    Widget has made a good suggestion with the 2216nd woofers.

    Another possible woofer could be the JBL 1501FE. They also use cloth surround as the 2216nd, but they use a ferrit magnet and should be...
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    2405 + 2426 + 2123 should be a great match, but...

    2405 + 2426 + 2123 should be a great match, but 2226 wonīt do it for hifi.
    You will be always missing the last octave and will try to compensate by equalizing, using subwoofer etc...
    If it is...
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    The GIK Scopus is exactly 10" thick ;) But they...

    The GIK Scopus is exactly 10" thick ;)
    But they don`t have to be 2mē each panel, that might be true for membrane absorbers using steel plates. You will need several square meters of total absorption...
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    It seems you have a lot of experience with...

    It seems you have a lot of experience with acoustic panels allready.
    You probably know this product allready, but if not have a look:...
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