Search:

Type: Posts; User: grumpy; Keyword(s):

Page 1 of 20 1 2 3 4

Search: Search took 0.71 seconds.

  1. Replies
    7
    Views
    228

    Many of the parameters are interdependent. If...

    Many of the parameters are interdependent.

    If you want to know about accounting for box volume, RMC pointed you in the right direction.
    ... something like the volume of a cone plus the magnet...
  2. Replies
    6
    Views
    311

    My experience? Workmanship is excellent....

    My experience? Workmanship is excellent. Sometimes it takes awhile. Not sure this is a primary gig anymore.
    I expect you'll be pleased with the end result, if not the wait.
  3. Replies
    7
    Views
    228

    -If- the question is re Vd, then itís Sd * Xmax,...

    -If- the question is re Vd, then itís Sd * Xmax, but the intended question may have been answered.
  4. Replies
    133
    Views
    11,142

    I think the answers may lie between room gain and...

    I think the answers may lie between room gain and banana curve discussions.
  5. Replies
    2
    Views
    672

    Haven't directly compared, but I have heard the...

    Haven't directly compared, but I have heard the 1200Fe under a JBL vert horn. It was quite engaging...
  6. Thread: Sub18

    by grumpy
    Replies
    9
    Views
    1,982

    I realize not everyone has suffered from the...

    I realize not everyone has suffered from the decades-long Sit-and-Sleep advert/commercial barrage...
    but “You’re killing me Barry!” :D
  7. Replies
    2
    Views
    492

    Hi Todd, Karlson boxes look kind of cool and...

    Hi Todd,

    Karlson boxes look kind of cool and are fun to contemplate, and certainly have an effect.

    I'll speculate that at 30Hz to 300Hz a triangle cut out would be fairly equivalent... or a...
  8. Replies
    8
    Views
    1,060

    Visual differentiaion? Horn a smidgen closer to...

    Visual differentiaion? Horn a smidgen closer to the top woofer? Worked -way- better than 180ļ around either other major axis.
  9. Replies
    20
    Views
    1,875

    Perhaps a unit with training wheels (clipping...

    Perhaps a unit with training wheels (clipping indicators), or better yet, suggest going biamp so the bass amp (overdriven or not) can’t wreak havoc on the more sensitive drivers... use the integrated...
  10. Replies
    20
    Views
    1,875

    -very- loud bass -might- let you remain in the...

    -very- loud bass -might- let you remain in the room with 300w peaks, but it would be uncomfortable unless outside or in a very large room. So, I would not see 150w as a real-life L300 limitation....
  11. Thread: JBL Paragon

    by grumpy
    Replies
    1
    Views
    837

    Condolences and congratulations. Perhaps a...

    Condolences and congratulations.

    Perhaps a Mcintosh 2x05 type amplifier and an accompanying pre would suit the mood/period (?)

    Modern gear is certainly suitable as well, but somehow wouldn't...
  12. Replies
    3
    Views
    1,245

    -opinion- Not where I'd personally go for a...

    -opinion-

    Not where I'd personally go for a daily listener (14" woofer crossing over to a small paper tweeter is bound to have its limitations),
    but they are old with fewer and fewer of them in...
  13. Replies
    73
    Views
    9,186

    "...but this voltage needs to be higher than any...

    "...but this voltage needs to be higher than any expected signal peak voltage."

    I challenge this repeated assumption. I suggest the bias voltage only needs to be sufficient to mitigate low level...
  14. Replies
    6
    Views
    1,354

    If you just pick the correct two terminals on an...

    If you just pick the correct two terminals on an 8ohm L-pad, you'll have a variable resistor (low ohms to ~40ohms)
  15. Replies
    103
    Views
    9,971

    Xmax for 128H is only 1/3" ... 2" is right out. ...

    Xmax for 128H is only 1/3" ... 2" is right out.

    I would guess 1) simply expecting too much and over driving the system or 2) the box tuning (passive radiator in this case... seems there was a...
  16. Replies
    30
    Views
    2,738

    If it's already tuned to be ~30Hz (say 5-6ft3...

    If it's already tuned to be ~30Hz (say 5-6ft3 vol, 4" long x 4" diameter port), I'd just start with it as-is (running through some scenarios).

    I would expect that to be fairly close to neutral (no...
  17. Replies
    35
    Views
    7,285

    Very nice. Inspirational, in fact. I -really-...

    Very nice. Inspirational, in fact.

    I -really- need to make working space in the garage and get going before George comes and kicks my butt!
  18. Poll: If the popping is happening with vinyl as a...

    If the popping is happening with vinyl as a source, use a high pass filter (whether its called a rumble filter or infrasonic filter)... the L150 is capable of enough LF energy to feedback through the...
  19. Replies
    3
    Views
    667

    More opinion: the 076 diaphragm is likely worth...

    More opinion: the 076 diaphragm is likely worth much more than the 044Ti (I am quite familiar with both drivers). Very much worth the trouble of trying to get what you paid for.
  20. Replies
    3
    Views
    667

    Opinions: I'd wait to see what the seller says...

    Opinions:

    I'd wait to see what the seller says before doing anything.

    Other than the box, there's perhaps only a bit more value in the "new" Ti diaphragm than there would be for a very clean,...
  21. Replies
    4
    Views
    844

    The stock JBL shipping boxes for raw drivers have...

    The stock JBL shipping boxes for raw drivers have not been very impressive.
    Certainly better than throwing them in a milk crate, but cone protection and drop protection should be key.

    something...
  22. Thread: Original L100t

    by grumpy
    Replies
    18
    Views
    3,233

    nice condition! I like the plinth :)

    nice condition! I like the plinth :)
  23. Replies
    103
    Views
    9,971

    Manually-rotated 'lazy suzan' works OK for this...

    Manually-rotated 'lazy suzan' works OK for this kind of thing. A few bucks at a housewares store.
    Also useful for refurbishing speakers drivers in general.
  24. Thread: JBL 034 tweeter

    by grumpy
    Replies
    16
    Views
    7,487

    IIRC, there were links in the 044 rebuild...

    IIRC, there were links in the 044 rebuild discussion (Seawolf)
  25. Thread: JBL 034 tweeter

    by grumpy
    Replies
    16
    Views
    7,487

    Handy info, if you work at a place that maintains...

    Handy info, if you work at a place that maintains large optical telecscope first-surface mirrors. :D

    Just paint the 034 lightly if cosmetics are a bother.
Results 1 to 25 of 500
Page 1 of 20 1 2 3 4