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Thread: Near or Midfield? Question.

  1. #16
    Senior Member Valentin's Avatar
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    in the brochure thy do not mention this use thy just say a more compact system

    the concept of near field mixing got in vogue a little latter in time

    if you sea the arrangement of the drivers is a lot closer with the tweeter and mid at 90 degrees

    century gold have a vertical orientation which means more distance

    if you see 4412a brochure it states

    for applications requiring maximum low frequency output from a bookshelf size monitor. this 3 way system titley clusters its transducers complement for accurate close proximity listening

  2. #17
    Senior Member BMWCCA's Avatar
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    Quote Originally Posted by Valentin View Post
    if you see 4412a brochure it states
    for applications requiring maximum low frequency output from a bookshelf size monitor. this 3 way system tightly clusters its transducers complement for accurate close-proximity listening
    Which would seem to imply less difference the further away the listener is from the speakers. I still say you all have determined the CG is NOT a near-field monitor. Whatever else it is is not really that important to how it is enjoyed or employed.

    Let the dead-horse beating continue!

  3. #18
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    Quote Originally Posted by BMWCCA View Post
    Let the dead-horse beating continue!
    I considered to pull Valentin and Hoerniger into some argument. Just to amuse the native speakers here with broken English from exagerated audio enthusiasts. That would have put me into ridicule too. Then I thought it over. Why not bother Zilch a bit? It would perhaps save him spendings for coffee, keep him upright for free and make the next precious driver next to available (kidding).

    For short a kick to the lefts forefoot hoofs base, the horse lies, its dead: The 4311 uses its 12" driver up to 1500Hz while the C/G is more updated in that respect with a crossover at 500Hz. Judged from directivity both concepts appear apart by ages as they literally are. The comparison Zilch posted is questionable so far. The C/G follows todays design patterns that the industry agreed on for home use.

    Maximum dispersion over neutral timbre including reverberation field (controlled directivity, as acclaimed by JBL later for 4330 etc). The C/G is not made for solely couch potatoes that prevent from changing position more often than twice a day. C/G may be seen as a workhorse encouraging physical exercise rather than most exhausting listening examination (with a gallantly "test only" connotation, of course).

  4. #19
    Senior Member Valentin's Avatar
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    Mini

    how elegant

    have a nice day

  5. #20
    Senior Member Beowulf57's Avatar
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    Perhaps the horse still has some life: interesting to consider the problem I noted when switching from the LX5 (500Hz LF crossover point) to the N1200S (1200Hz LF crossover point) with my D130 (15") / D131 (12") bass drivers and LE85 midrange drivers. The sound became excessively peaked in the midrange with the higher crossover point. Perhaps due in part to "beaming," i.e., a more narrow dispersion pattern of those frequencies by the larger cone drivers?

  6. #21
    RIP 2011 Zilch's Avatar
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    4311 was a tighter cluster than 4310:

    http://www.audioheritage.org/html/profiles/jbl/l100.htm

    The earliest L100s were also vertical in-line.

    Do we consider this to have been an experiment which failed?

  7. #22
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    Quote Originally Posted by Zilch View Post
    The earliest L100s were vertical in-line.

    Do we consider this to have been an experiment which failed?
    No.

  8. #23
    RIP 2011 Zilch's Avatar
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    Quote Originally Posted by 4313B View Post
    No.
    Rather more like ahead of its time, apparently, seen in the light of Century Gold....

  9. #24
    Senior Member Valentin's Avatar
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    there is no perfect point source an no standard room so any design has it compromises

    there are horses for courses

    there too many variables and we are concentrating to much in just one of them

  10. #25
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    Quote Originally Posted by Zilch View Post
    Rather more like ahead of its time, apparently, seen in the light of Century Gold....
    The original L100 was the correct implementation, especially in light of the filter design.

  11. #26
    Senior Member Hoerninger's Avatar
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    Quote Originally Posted by mini View Post
    I considered to pull Valentin and Hoerniger into some argument. Just to amuse the native speakers here with broken English ...
    Mini,

    komm mal runter und lass die Luft ab.
    Cool down.

    [I consider this thread as closed.]
    ____________
    Peter

  12. #27
    Senior Member Beowulf57's Avatar
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    Oh dear...was I off topic too far? Or simply that no one has any thoughts on my question? offtopic:

  13. #28
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    Quote Originally Posted by Hoerninger View Post
    Mini,

    komm mal runter und lass die Luft ab.
    Cool down.

    [I consider this thread as closed.]
    ____________
    Peter
    Hoerniger, I had to tell a thing or two about Your comment regarding me rejecting near/midfield definitions. The philosopher in me, whom You mentioned below, considers audio terms most common ill defined and to often common knowledge as a mirage.

    edit > I dropped You a PM.

  14. #29
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    Quote Originally Posted by Beowulf57 View Post
    Oh dear...was I off topic too far? Or simply that no one has any thoughts on my question? offtopic:
    Hi,

    Monitoring is by JBL related to directivity (e/g model 4430/5). Directivity is a complex topic. My own experiences with it are home grown. I never had a genuine JBL box at hands. By now I try to follow the JBL guidelines using mid/large format horns/drivers of JBL provenience. I have to admit, its all due to curiosity.

    One thing I know already. If a design incorporates a 12" driver with 1.5kHz crossover it compares different to an other with 500Hz c/o. In other words I can't help You with Your special question. My advice if asked for was to measure what is ment to be heard. Just to clearyfy the situation.

    Regards

  15. #30
    Senior Member Beowulf57's Avatar
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    Thanks for your input...I'll throw my query out in a separate thread.

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