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  1. Replies
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    paragon woofers

    Changing the woofers to 2334s will greatly improve the bass (lower, tighter, less wooly). Since they go higher than the LE-15a, the 800 hz crossover should work even better. Unfotunately there is...
  2. Thread: 4430 vs 4435

    by rpstephen
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    6,112

    4430

    Maybe "tubby" was not a good choice of words. It's just on certain recordings e.g. Jennifer Warnes The Hunter the whole room shakes on the bass notes. A lot of modern (digital) recordings have the...
  3. Thread: 4430 vs 4435

    by rpstephen
    Replies
    7
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    6,112

    4435

    I have the 4430s and a friend of mine has the 4435s. The 4435s have much better bass and the lower midrange sounds cleaner with a sense of ease on orchestral works. My 4430s are tubby sounding...
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    41,102

    paragon and 4430

    I can offer my views of the paragon as an owner of both the paragon and 4430s. When I first bought a new paragon in the mid 70s, I was not overly impressed with its performance until a friend...
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    Aquaplas diaphragm

    I checked with orange county speaker repair about installing the diaphragms. They were not familiar with the D8R275ND diaphragm and wondered even they would even fit my drivers. But they checked...
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    Aquaplas diaphragms for 4430 drivers

    One of the hf divers in my pair of 4430s sounds like a diaphragm might be going bad. It has a slight but distinctive high frequency edge or resonance to the sound. These were purchased off ebay a...
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    :) I worked for 14 years in research at Owens...

    :) I worked for 14 years in research at Owens Corning and never saw or heard of any significant health problems with fiberglass. The smell of new fiberglass is mainly due to the asphalt used to...
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    I have found the Atma-Sphere OTL (output...

    I have found the Atma-Sphere OTL (output tranformerless) amps & preamp to work very well with my paragon. The clarity and bass are outstanding & the imaging is excellent. My first reaction was how...
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    The reason jbl used the le-15a in the paragon was...

    The reason jbl used the le-15a in the paragon was to improve the bass according to Harvey Gerst. Also the owner of Pecar electronics in Detroit told me this in 1965. I doubt that jbl would have done...
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    I have a paragon purchased new in 1978Serial...

    I have a paragon purchased new in 1978Serial #42386, le-15a #s 36579-80, 075 #s 127168-69.
    I replaced the le-15s with 2234s as an experiment. Greatly! improved base
    but at the expense of 3-d...
  11. Thread: 4430 plans

    by rpstephen
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    14,942

    4430 plans

    I will be moving to a 1 bedroom condo at Pensacola Beach with no room for my paragon. :( I was thinking of building a 4430 clone since I have 2234 woofers (presently in the paragon) & a pair of...
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    I think 2234 may be crossing over higher causing...

    I think 2234 may be crossing over higher causing some interference effects with the 375s. I also noticed a bit of lower mid range roughness. I have played around with the crossover wires & not...
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    I have finally gotten around to installing my...

    I have finally gotten around to installing my 2234 woofers in the paragon. Result is much improved bass: deeper & better defined, much less wooly. My furniture rattles on the SACD "The MAgic Box"....
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    would that involve measuring the impedence vs...

    would that involve measuring the impedence vs frequency in the enclosure, and then using a program to model the network with this data? Then we would probably have to do some frquency response...
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    The 2235 might be better than the LE-15a in the...

    The 2235 might be better than the LE-15a in the paragon with a custom crossover. JBL was probably unwilling to put the needed resources into such a low volume product. The LX-5 crossover was...
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    The technical data sheet on the paragon lists the...

    The technical data sheet on the paragon lists the 2235 as a replacement for the le15a " but only as a last resort". One of the reasons may be that the crossover is not optimized for the 2235.
    I...
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    075 xover

    Unfortunately, placement of the 075 in the paragon requires a narrow dispersion.
  18. Replies
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    075 xover

    Would eliminating the bandpass on the 375 and running it out flat improve the sonics with the 075 driver in a paragon? Might have to move the xover frequency up to 9khz to avoid too much overlap. ...
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    new waveguides

    Are these new waveguides available to purchase as separate components? I am looking for horns to build a system for a friend on the order of a 4430 type system. I already have some old LE-85s a...
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    felt lining

    As a paragon owner I think I will try the lining & report back my impressions. Just what kind of lining? A thin 1/4" felt or accoustic foam? Probably not fiberglass as this would add virtual...
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    I have a pair of 2234s which I would like to try...

    I have a pair of 2234s which I would like to try in the paragon, but I think putting in mass rings to make them 2235s would be better to match efficiency with the Le-15a (another project). Might get...
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    14,773

    As a paragon owner, I have often wondered how...

    As a paragon owner, I have often wondered how different woofers would sound. I was told by the owner of Pecar Electronics in Detroit back in the 60s that JBL switched to the Le-15a to get deeper...
  23. Thread: Jbl 2440

    by rpstephen
    Replies
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    9,080

    Hi: I contacted the company & they agreed to...

    Hi:
    I contacted the company & they agreed to reimburse me for repairs up to the price I paid (~$220). Orange county speaker said it would new a new diaphragm ($216) and recharge the magnet ($10). ...
  24. Thread: Jbl 2440

    by rpstephen
    Replies
    5
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    9,080

    Jbl 2440

    I was warned on this forum about the perils of buying used 244x drivers! I received a pair of 2440 ebay drivers today packed together with a handful of peanuts and a smidgen of bubble wrap. One...
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    New crossovers for paragon

    I am looking for suggestions on building new xovers for my paragon. Originally I was just going to use bypass capacitors in the originals, but the waxy substance in the lx5s is a mess. I am planning...
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