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Thread: Discussion Thread JBL 4343 to 4344 upgrade

  1. #286
    Senior Member Ian Mackenzie's Avatar
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    Al,

    Beautiful!

    Nice to see some pics of your handy work.

    Ian

  2. #287
    Senior Member alskinner's Avatar
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    Ian,

    Thanks for the kind words. Getting these crossovers to the state their in now gives me a deep respect for people like Gregg Timbers and the amount of work that goes into getting them right. I can work out the voltage and frequency dividers, but that still doesn't mean they will necessarily sound right. As I have found the components used have a lot to do with the sound. I couldn't believe at first the difference in the Auricaps as compared to the Solens in the sound. IMHO the Auriacaps can't be beat in a total passive crossover. I still haven't made up my mind whether to leave the 2421s with the 2309 horns in or go with my Westlake clones with the 2441s. I really like the sound of the Westlake style horns but I will need to modify the crossover slightly bringing down the frequencies between 1K and 4K about 2 decibels. At any rate it's been awhile since the 4344 clones have made me smile from ear to ear.

    Regards
    AL

  3. #288
    Senior Member Ian Mackenzie's Avatar
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    Al,

    I assume you are referring to charge coupling the Solens?

    Ian

  4. #289
    Senior Member alskinner's Avatar
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    Ian

    Right. The Solens do quite well in a charged coupled crossover. I just couldn't get them to sound right in a total passive configuration. Of course this is just my opinniion and others may have a different take. That's one reason I don't post as often as I should. What works for me may not be someone elses cup of tea.

    AL

  5. #290
    Senior Member Ian Mackenzie's Avatar
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    Al,

    The usual disclaimers are always appropriate.

    On that note can you decribe your system configuration and other equipment.

    It was rather nice as I recall.

    Ian

  6. #291
    Senior Member alskinner's Avatar
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    4344 clones

    The 4344 system consists of the crosovers pictured and the standard driver compliment 2235H, 2122H, 2421 and 2309 horns and athe 077/2405 tweetrers. As pictured above I have experimented with the Westlake style horns with 2441s and the 076/2403 tweeters. Although the standard 4344 compliment is excellent, I am leaning towards Westlake style horns and 076 as the final product. Again this is a personal preference as there is something about the Westlake horns that gel with the rest of the system that I can't get the 2421s to quite do. I have 3 pairs of 2122s as for me it is hard to find a mid bass that will do what they do best especially geling the vocal range between them and the horns. I am using my trusty Threshold Stasis II to power with and a set of 4400 white crossovers. With the system as it is I use very little equalization except as stated earlier when I am runniing the Westlake horns I find the need to lower the range between 1K an 4K about 2 decibles.

    Al
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  7. #292
    Senior Member Ian Mackenzie's Avatar
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    Al,

    Very nice. Excellent choice of equipment.

    I take it the WAF factor is better with the Westlake style horns than those in your avatar!

    The thing I like about this is your getting the sound you want by gradually working on it over a period of time and its not broken the bank.

    Ian

  8. #293
    Senior Member alskinner's Avatar
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    Ian,

    As you know, the 4344/4345 can be some of the best sounding speakers out there. But as stated elsewhere they are not plug and play. Careful consideration of the cabinet construction, crossovers and yes equalization is important in getting them to sound and perform correctly. I have never understood some folks that are against using equalizers. When used wisely they can help with room corrections. If I remember correctly most studios that used the the big JBL Monitors used equalization with room treatments along with careful RTA measurements to get the optimal sound out of these systems. Having said that poorly made or implemented equalization can have the opposite effect. To me the White's are some of the most natural sounding equalizers out there. I think this may be one of the reasons JBL bashers exist. I bet most of them have never heard a properly tuned and equalized set.

    Along with this the rest of the signal chain has a great effect especially amplifiers. As a great admirer of Nelson Pass's work they for me fit like a glove with the big monitors. Although I enjoy of the Stasis II, I am setting my sights on a Pass 250.5, as I have heard nothing but good things about it.

    I believe the 4344/4345 have potential that will go on for years to come. As knowledge is gained in the areas of crossover design, the can only get better and better.

    As far as my avatar, I am also a fan of the 2360 horn, although not as articulate as the 4344s it has a special appeal all it's own. Bu t I don't want to get off topic.

    I am very fortunate to have a great understanding wife, that supports my hobby. She has been great listening for over two years as the project has come together. She is brutally honest, if it sounds like crap she'll tell me. But in there present form she enjoys listening to them as much as I do.

    AL

  9. #294
    Senior Member Ian Mackenzie's Avatar
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    Nice post Al.
    http://www.audioheritage.org/vbullet...39&postcount=7

    I posted this this morning and mention it here as there is relevance to the upgrade of the 4343.

    This post will possibly be moved in which case I will attach a word doc to this thread at some point on a home user guide of the 4 way monitors.

    Ian

  10. #295
    Senior Member Ian Mackenzie's Avatar
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    Following the recently closed thread on Cable Busters please find below a summảry of links to some aspéct of ủpgading the 4343 monitors.

    Note in fact an 8 pole speakon connector and Cảrdás Binding posts following consideration for updating the entire system.

    Thẻ complexity of the project being beyond that of most users


    http://www.audioheritage.org/vbulletin/showthread.php?6633-Discussion-Thread-JBL-4343-to-4344-upgrade&p=69854&viewfull=1#post69854
    If you do plan on an external network you will need to arrange a suitable means of cabling to the outside world. I used an 8 Pole Speakon Plug and Socket. There a several advantages with this style of connector, its air-tight, has very good electrical characertistics, takes a 13 gauge cable and the polarity of the individual driver cabling is identified and maintained without fear of error.
    http://www.audioheritage.org/vbulletin/showthread.php?6633-Discussion-Thread-JBL-4343-to-4344-upgrade&p=75219&viewfull=1#post75219
    http://www.audioheritage.org/vbulletin/showthread.php?6633-Discussion-Thread-JBL-4343-to-4344-upgrade/page12

    http://www.audioheritage.org/vbulletin/showthread.php?6633-Discussion-Thread-JBL-4343-to-4344-upgrade&p=76308&viewfull=1#post76308

    http://www.audioheritage.org/vbulletin/showthread.php?6633-Discussion-Thread-JBL-4343-to-4344-upgrade&p=102142&viewfull=1#post102142

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