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  1. Thread: Sub18

    by sguttag
    Replies
    9
    Views
    629

    The 5628s are quite the fun speaker! Not too...

    The 5628s are quite the fun speaker! Not too many cinemas use them due to their cost and inefficiency (compare them to the 4642A, for instance, and you need to apply 5dB more power for equivalent...
  2. Thread: 4641 vs 4645c

    by sguttag
    Replies
    4
    Views
    315

    For subwoofer use? Absolutely. The 4645c...

    For subwoofer use? Absolutely. The 4645c performs significantly better than the 4641.
  3. Replies
    11
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    1,037

    And just how big a room are they in to get this...

    And just how big a room are they in to get this 10Hz? And what recording is really delivering in that area? My cabinets are slightly larger to get down to 18Hz.

    Mine are used with suitable EQ (I...
  4. Replies
    11
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    1,037

    No. As I said, they are essentially SUB18...

    No. As I said, they are essentially SUB18 clones.

    This thread may provide some useful info:
    ...
  5. Replies
    11
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    1,037

    The 2269 is a pretty awesome driver. I too was...

    The 2269 is a pretty awesome driver. I too was intrigued by it. So much so, I bought a pair and made my own "SUB18" clones (slightly larger and tuned a little deeper). They didn't disappoint me at...
  6. Replies
    103
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    7,112

    That is correct...it isn't a matter of taunting...

    That is correct...it isn't a matter of taunting you, thems the rules by JBL. We are prohibited from selling recone kits as a retail part. The part about having gap gauges is true as well. Every...
  7. Replies
    103
    Views
    7,112

    The link I have is for a dealer/service center...

    The link I have is for a dealer/service center site and not for public posting or distribution. That said, she or any JBL/Harman dealer/service center would access through the same site.

    They do...
  8. Replies
    103
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    7,112

    Derek, If she is a JBL recone center, ask her...

    Derek,

    If she is a JBL recone center, ask her to try again via the Harman Portal. Both the C8R128H and C8R128H-1 come up. I was able to drop a pair of C8R128H in my cart and when I checked on...
  9. Replies
    103
    Views
    7,112

    Any JBL Pro recone center can order the part but...

    Any JBL Pro recone center can order the part but what we can't do is sell them as a retail part. They can only be sold as part of a recone. So whomever you are using to recone your drivers, if they...
  10. Replies
    103
    Views
    7,112

    I don't want to argue with you. I'm a certified...

    I don't want to argue with you. I'm a certified JBL Pro reconer and I checked TODAY and the C8R128 comes up as an orderable part and the system implies that if I ordered today it would ship within...
  11. Replies
    103
    Views
    7,112

    I haven't encountered the problem you speak of...

    I haven't encountered the problem you speak of but there shouldn't be ANY rubbing.

    The JBL 128H (white) cone kits are still available from JBL so you should be able to get the original look. The...
  12. Replies
    96
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    40,231

    In the mid '70s till the early-mid '80s was my...

    In the mid '70s till the early-mid '80s was my "stereo as a hobby" era. I Would listen to equipment in the stores (many stores) then buy something based on that and would live with it for a while...
  13. Replies
    8
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    1,729

    EV is a bit more complicated on their components....

    EV is a bit more complicated on their components. The DL15W (or DL18W) is the general purpose over-reaching consumer designation (aka "Product Number"). The actual number is typically a 3 or 4...
  14. Replies
    46
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    3,860

    Generally, size goes hand-in-hand with pattern...

    Generally, size goes hand-in-hand with pattern control and loading, when tend to directly affect sound quality.
  15. Replies
    46
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    3,860

    You could use MRII994 Mantary horns and they'll...

    You could use MRII994 Mantary horns and they'll sound yet better.
  16. Replies
    19
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    1,608

    Gasket 34499 remains a service part from JBL. If...

    Gasket 34499 remains a service part from JBL. If you have a local JBL parts importer, they should be able to source it for you. They are not that pricey.
  17. I seem to recall loosening the screws that hold...

    I seem to recall loosening the screws that hold the driver but not removing them so I could push the driver out (via the port hole in the rear) without it dropping on the floor.
  18. Replies
    635
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    199,459

    I was under the impression that the FIR filters...

    I was under the impression that the FIR filters were based on measurement of the output of the Crown DSP with the M2 settings active in order to provide an identical transfer function. The speaker...
  19. Replies
    22
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    2,217

    I've tried the adjustable ports. Some things to...

    I've tried the adjustable ports. Some things to keep in mind, make your opening in the cabinet a little larger because you will want to use tape as you adjust the length of the port(s). It is a...
  20. Replies
    101
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    30,370

    While I've used the QSC DCA line of amps for a...

    While I've used the QSC DCA line of amps for a long time and in many theatres, and will continue to use them as a reliable and good sounding amp, the MC2 has proven itself to me to be a relatively...
  21. They are still showing as an orderable part.

    They are still showing as an orderable part.
  22. So....WinISD is better than JBL and defies actual...

    So....WinISD is better than JBL and defies actual measurements?

    JBL's specs for the 4641 (2241 in an 8ft3 box) http://www.jblpro.com/ProductAttachments/4641%20Spec%20Sheet.pdf
    JBL's specs for the...
  23. Replies
    635
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    199,459

    Even better...go to the first post of this thread...

    Even better...go to the first post of this thread and at the bottom are links for internal and external dims as well as links for handy photos of both DYI and genuine M2.
  24. I have not found that the 2241 goes lower than...

    I have not found that the 2241 goes lower than the 2242 and quite the opposite. I've used quite a bit of both and the 4645C routinely out performs the 4641 and the only difference is the...
  25. Replies
    30
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    6,884

    1" fiberglass but none on the board with the...

    1" fiberglass but none on the board with the drivers. (5-sides). If you search the other M2 DYI thread there are pictures showing how various people have lined it (as well as a genuine M2).
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