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    Junior Hostboard Member jmathers's Avatar
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    altec stonehenge V plans

    Wondering where to find Altec Stonehenge V plans. Am thinking about purchasing a set of 604-8H-IIIs and am thinking Stonehenge Vs would work best in my space. However, I need to run the plans by a cabinet builder to see what he would charge to build before I commit to the drivers. Anyone? Sure would appreciate any guidance - the plans seem not to exist on the interwebs.

    Jeff

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    altec stonehenge V plans


    Old Guy's Avatar
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    Re: altec stonehenge V plans

    How about the III instead?

    Altec Stonehenge III (3577A) Cabinet plans



    3
    Your neighbors called. They like your music.

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    Senior Hostboard Member mattvandyke's Avatar
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    Re: altec stonehenge V plans

    The one problem that I found with Jeff M's drawing is that the depth is 14 3/4 but original was 17 1/4. Other than that they are great drawings.

    Here is a link to the original dimensions:
    http://www.lansingheritage.org/image...ome/page07.jpg

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    Junior Hostboard Member jmathers's Avatar
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    Re: altec stonehenge V plans

    Yes, seen the 3s. I want more bass. And I have the space.

    Too bad a similar detailed drawing does not exist for the Vs somewhere.

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    altec stonehenge V plans


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    Re: altec stonehenge V plans

    Maybe this guy will sell you a copy?

    Built to Order Altec Lansing Stonehenge V 5 Cabinets Oak Walnut etc for 604'S | eBay

    Barring that get the dims from literature and work out the porting with a box program.
    Your neighbors called. They like your music.

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    Senior Hostboard Member VolvoHeretic's Avatar
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    Re: altec stonehenge V plans

    Give me the dimensions, the panel thickness and I will give you 2d and 3d diagrams and volums.
    "James, a little knowledge is a dangerous thing!" World's scariest Volvo: [url]http://www.youtube.com/watch?v=AKn-LTNa4rc[/url]

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    Re: altec stonehenge V plans

    Well, DJK [who I trust] says it's 620 size, which is 9 ft^3 gross and Bill recommends 9 ft^3 net, so figure out what its gross will ~ be with the driver, bracing, and divvy it up to whatever H x W x D you like, though preferably make the W x D some golden or acoustic ratio to minimize the amount of internal damping required. The driver, vent location should be at odd modes in a high aspect ratio cab same as the speaker, listening position in a room, i.e. at ~ 3rds, 5ths, 7ths, etc., of its inside [i.d.] height .

    FWIW, putting the vent close to the driver is all well and good in a typical rectangular cab, but the 'V' has a high enough aspect ratio for some minor ? WL TL pipe action to help damp the vent [and ideally should be taller], so placing the vent much closer to the bottom is a good plan for a theoretically smoothest response whereas up high it adds a second reflection that creates a broadband notch in the upper bass, defeating any TL pipe action.

    Basically, the 'V' should sound like a big reflex unless the cab is relatively densely treated to roll off any peaking at tuning [Fb], but normally the goal is to maximize acoustic efficiency, so not a good plan.

    Bill?s a successful horn designer, so has to know this. I guess he just chooses to stick to tradition for tradition?s sake and/or his main market wants it that way.

    Regardless, you want more bass, then you need to go larger, tuned lower, so how big in H x W x D can you ?afford? and how much, if any EQ [and type] are you willing to use?

    GM
    Loud is Beautiful if it's Clean! As always though, the usual disclaimers apply to this post's contents.

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    Junior Hostboard Member jmathers's Avatar
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    Re: altec stonehenge V plans

    Well, I want more bass than a Stonehenge III can deliver. Just trying to maximize the driver's potential without the use of subs. There will be no EQ.

    Somewhere someone said the Stonehenge V cabinet dimensions are 50" tall, 22" wide, and 18" deep. Though that baffle measurement seems small to me. I've read that you'd want at least 24-26" width but I'm operating on a limited understanding of why a larger baffle may be better. But that's probably as large as cabinet as I'd want in my listening room (room dimensions are roughly 18'x30').

    I suppose I could look further at an MLTL design. Though evidently Martin King's calculator for this type of design is now "private."

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