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Posted on: 8-12-07

jessie.dazzle

Paris, France
Posts: 456



Thread: Adding one more spherical to Macondo.
           Reply: 297.875Hz ; The magic number?  
330 or 300 or 297.875Hz... Migh all be just as interesting... Or more likely a complete waste of time.

It does not matter what Vitavox did.

My motivations : There is only one, and it is not related to the lower knee of my Upper MF horn/driver, so you might say I am shooting in the dark like a wounded in the ass audiophile. I understand the drawbacks involved with the larger horn; I would do the experiment only in the name of observing the effect it may have on the "Beneficial Resonance" zone of the S2.

So why 330Hz... Because, based on results of the 400Hz horn, I would not want to go much lower.

If/when I do the experiment, I would probably also make a +or- 500Hz horn with the same aim in mind (it does not take me long to make a small horns if I leave the exterior unfinished).

I am also experimenting with approaches like the one illustrated in the attached image (can't comment on results yet... I have to re-conduct the experiment... I screwed it up).

jd*

How to short-circuit evolution: Enshrine mediocrity.
 Posted Date All replies in the thread
  5-23-06   Adding one more spherical to Macondo.   (5-23-06)..Romy the Cat
  5-25-06   A loss of axial symmetry   (5-25-06)..drdna
  5-25-06   GOTO: am I a hypocrite?   (5-25-06)..Romy the Cat
  5-25-06   The axial symmetry at 750Hz?   (5-25-06)..Romy the Cat
  5-25-06   Re: GOTO   (5-25-06)..slowmotion
  5-25-06   Back to the imaging of the fifth wheel.   (5-25-06)..Romy the Cat
  5-25-06   Re: Adding one more spherical to Macondo.   (5-25-06)..Wojtek
  5-25-06   The fundamentals channel: the first blood   (5-25-06)..Romy the Cat
  5-26-06   Stacking the horns: bad idea   (5-26-06)..Romy the Cat
  5-26-06   Some examples with Fundamentals Channel   (5-26-06)..Romy the Cat
  5-27-06   The S2 “fundamentals channel” – first success!   (5-27-06)..Romy the Cat
  5-30-06   Another example of use of a Fundamentals Channel.   (5-30-06)..Romy the Cat
  8-9-06   The “Fundamentals Channel” horns are here...   (8-9-06)..Romy the Cat
  8-11-06   "Pile O' Horns"   (8-11-06)..NBC
  8-11-06   Re: "Pile O' Horns"   (8-11-06)..Romy the Cat
  8-11-06   Horn mouth termination   (8-11-06)..NBC
  8-12-06   Bad "choked" mouth termination.   (8-12-06)..Romy the Cat
  8-12-06   Re: Adding one to Macondo: Beautifully wasted Saturday!   (8-12-06)..Romy the Cat
  8-13-06   New “fundamental channel”: juts pictures.   (8-13-06)..Romy the Cat
  8-14-06   The “Fundamental channel” - the first blood.   (8-14-06)..Romy the Cat
  8-14-06   Re: The “Fundamental channel” - potential mechanical HF filter   (8-14-06)..cv
  8-14-06   Re: The “Fundamental channel” - potential mechanical HF filter   (8-14-06)..NBC
  8-14-06   The new channel, phase plug and the objectives   (8-14-06)..Romy the Cat
  8-14-06   I love, I love, I love it!   (8-14-06)..Romy the Cat
  8-15-06   The new channel: first disappointment.   (8-15-06)..Romy the Cat
  8-18-06   More mysteries and THE Honk.   (8-18-06)..Romy the Cat
  8-18-06   Re: More mysteries - bizarre crossover effects   (8-18-06)..cv
  8-18-06   No mysteries in there but still the bizarre crossover effect...   (8-18-06)..Romy the Cat
  8-18-06   The new channel! Yes! I got it!!!   (8-18-06)..Romy the Cat
  8-20-06   Re: 2nd Order filter   (8-20-06)..guy sergeant
  8-20-06   Yes, in my case 2nd Order.   (8-20-06)..Romy the Cat
  8-20-06   The “fundamental channel”: the final tune.   (8-20-06)..Romy the Cat
  8-20-06   Re: Honk that Horn?   (8-20-06)..hagtech
  8-20-06   The ordinary honk of the bad horns owners.   (8-20-06)..Romy the Cat
  8-23-06   The “fundamental channel”: What a beauty!!!   (8-23-06)..Romy the Cat
  8-26-06   Some thoughts about my New Macondo's Absolute Tone   (8-26-06)..Romy the Cat
  8-27-06   Re: Some thoughts about my New Macondo   (8-27-06)..NBC
  7-28-07   "Absolute tone" - I was missing that Sound   (7-28-07)..Romy the Cat
  8-7-07   The Fundamentals Channel around S2 is taken further.   (8-7-07)..Romy the Cat
  8-10-07   Redesign the Vitavox S2 back chamber’s cover.   (8-10-07)..Romy the Cat
  8-10-07   Vent or Augment?   (8-10-07)..jessie.dazzle
  8-10-07   The chamber pressure leaking.   (8-10-07)..Romy the Cat
  8-10-07   A range of spacers?   (8-10-07)..Paul S
  8-10-07   A microscopic pneumatic valve? The field-coil… diaphragm damping?   (8-10-07)..Romy the Cat
  8-10-07   Control that leak!   (8-10-07)..jessie.dazzle
  8-10-07   control that leak! Part II   (8-10-07)..jessie.dazzle
  8-10-07   The leaked S2, one step forward & two back   (8-10-07)..Romy the Cat
  8-10-07   0 - 1 SCFM at 50 PSI?   (8-10-07)..Paul S
  8-11-07   Controlling my own leak!   (8-11-07)..jessie.dazzle
  8-11-07   The Bermuda Triangle rediscovered?   (8-11-07)..Romy the Cat
  8-12-07   Slowly rolling back…   (8-12-07)..Romy the Cat
  8-12-07   Back to Bermuda...   (8-12-07)..jessie.dazzle
  8-12-07   Who cares what Vitavox did?!   (8-12-07)..Romy the Cat
  8-12-07   297.875Hz ; The magic number?   (8-12-07)..jessie.dazzle
  8-12-07   The Vitavox S2 back chamber stuffing.   (8-12-07)..Romy the Cat
  9-27-07   Crossing in the middle   (9-27-07)..jessie.dazzle
  9-28-07   I migh be the phase "clicking"....   (9-28-07)..Romy the Cat
  9-28-07   Further observations   (9-28-07)..jessie.dazzle
  9-28-07   "I will try to take some measurements soon"...   (9-28-07)..Romy the Cat
  9-28-07   Correction & Vertical shift   (9-28-07)..jessie.dazzle
  9-28-07   Three mid channels crossovering - playing in the middle.   (9-28-07)..Romy the Cat
  1-13-08   The 6-ch Milq: Fundamentals vs. Injection Channels.   (1-13-08)..Romy the Cat
  6-10-08   How JBL is trying to do my “fundamentals channel”.   (6-10-08)..Romy the Cat
  6-20-08   250Hz tractrix upper range..?   (6-20-08)..NBC
  6-21-08   This is a universal crossover rule   (6-21-08)..Romy the Cat
  6-22-08   Specifically...   (6-22-08)..NBC
  10-28-08   The Fundamental Chanel gets a new driver.   (10-28-08)..Romy the Cat
  10-29-08   S2 : How low can you go ?   (10-29-08)..jessie.dazzle
  10-29-08   The low-path knee of Fundamentals Channel.   (10-29-08)..Romy the Cat
  10-29-08   Yep, I went for it. It is S3 now.   (10-29-08)..Romy the Cat
  10-30-08   Correction upon further inspection of the Black Hole   (10-30-08)..Romy the Cat
  10-30-08   Fundamental evolution   (10-30-08)..jessie.dazzle
  10-30-08   Channels, drivers design and some RTA rant.   (10-30-08)..Romy the Cat
  10-30-08   MF ramblings &&&   (10-30-08)..jessie.dazzle
  6-10-09   New options for Fundamentals channels.   (6-10-09)..Romy the Cat
  6-11-09   Efficiency?   (6-11-09)..Paul S
  6-28-09   The new life of the Fundamentals Channel.   (6-28-09)..Romy the Cat
  3-16-10   Macondo’s alternation of Fundamentals Channel.   (3-16-10)..Romy the Cat
  9-27-10   New Fundamental Channel.   (9-27-10)..Romy the Cat
  9-28-10   Option   (9-28-10)..Dominik
  9-28-10   Stereolab   (9-28-10)..el`Ol
  9-28-10   Revisiting the fundamentals   (9-28-10)..jessie.dazzle
  9-28-10   Macondo with wings and wide Fundamentals …   (9-28-10)..Romy the Cat
  9-28-10   Multicellular Horns   (9-28-10)..Dominik
  9-28-10   15 cell vs.18 cell   (9-28-10)..Romy the Cat
  9-28-10   Where to cross MF & theory on depiction of depth   (9-28-10)..jessie.dazzle
  9-28-10   The thoughts salad.   (9-28-10)..Romy the Cat
  9-28-10   Depth in stereo & the Flat Earth Society   (9-28-10)..jessie.dazzle
  12-13-10   Fundamental Channel, what a power!!!   (12-13-10)..Romy the Cat
  3-31-11   S3 as a low MF driver   (3-31-11)..gordan
  3-31-11   Depending on your amplification   (3-31-11)..Romy the Cat
  4-1-11   S3 and class A amps   (4-1-11)..gordan
  4-2-11   It is about magnet and SS type.   (4-2-11)..Romy the Cat

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