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Thread: OT: Subwoofer project to support your Altecs.

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    OT: Subwoofer project to support your Altecs.


    alancohen's Avatar
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    OT: Subwoofer project to support your Altecs.

    Quote Originally Posted by alancohen View Post
    I would think you'd want more power handling for a sub. 250W min. It's amazing how much power it takes to drive 25-30Hz.

    Here's an interesting link about a down and dirty home made sub(s). They're made with 8" drivers in a 5 gallon paint bucket and powered by a Crown XLS1000. I'm almost tempted to try a pair.

    Subwoofer Project - Transcendent Sound Message Board
    Rather than hijack Phil_Gs thread I thought I'd start another one.

    There never seems to be a shortage of inquires on how to get your Altecs to play down to 25Hz or how to marry subwoofers to them to fill in the bottom.

    What I have gleaned from much of this constant conversation is that Altecs have some pretty incredible mid bass down to about 50-60Hz, but trying to get them to play to 35Hz leads to sacrificing some of what Altecs do best. I prefer not to do that. So intigrating a subwoofer seems to be a worthwhile project.

    I have a little KLH 10"er that does something, but it is far from a musical subwoofer. I have seen a Muse, some Rels and others, but I really don't want to spend $1000s of dollars on a sub. I also want two, so cost is a factor.

    I came upon the thread cited above and at first poo-poo'd it. But the guy who designed them has been making a living designing, building and selling speakers for 30 years and even he is amazed how good they sound. And Bruce of TS just built one and measured it. It's flat to 25Hz at 106dB when XOer at 100Hz.

    It's such a cheap project and about an hours work so I don't think I can resist building two. I have several spots around the LR where I can hide 2 easy. Crown XLS1500s are $357 shipped at Amazon.

    Here's the direct link to the project: http://www.transcendentsound.com/Tra...Subwoofer.html
    Last edited by alancohen; July 30th, 2013 at 06:53 PM.

  2. #2
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    OT: Subwoofer project to support your Altecs.


    Old Guy's Avatar
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    Re: OT: Subwoofer project to support your Altecs.

    I'll put it on my bucket list to build one...

    Some projects like this turn out quite well. No knowledge on this one. But would give a listen if local.
    Your neighbors called. They like your music.

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    OT: Subwoofer project to support your Altecs.


    alancohen's Avatar
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    Re: OT: Subwoofer project to support your Altecs.

    The only question is Lowe's blue or Home Depot orange.

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    Senior Hostboard Member VolvoHeretic's Avatar
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    Re: OT: Subwoofer project to support your Altecs.

    I’ve got a pair of (300 watt rms) Alpine SWR 1040D 10 inch subs in .75 cu ft sealed boxes and am using just a 15 band EQ to boost the 31.5 and 40hz ranges 12db and cut the rest 12db for a crude active low pass filter and behind my 150 watts rms Crown DC300A at 8 ohms.

    This is paired with my 8 cu ft altec 418-8H II guitar speaker/32B/806-8A w/ pascalites and one lone Piezo super tweeter.

    As bad as this might seem, I like em.

    (Edit Sorry, I thought that this was a generic thread on subs. I have deleted the junk I included on mine.
    Last edited by VolvoHeretic; August 3rd, 2013 at 03:26 PM.
    "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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    Senior Hostboard Member cradeldorf's Avatar
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    Re: OT: Subwoofer project to support your Altecs.

    The Dayton 12" that I have does a fantastic job of creating house shaking bass. at $120.00 plug and play...meh it's pretty hard to beat.

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    OT: Subwoofer project to support your Altecs.


    alancohen's Avatar
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    Re: OT: Subwoofer project to support your Altecs.

    Here's a review I came across when researching the Peerless driver:

    Exceptional value subwoofer
    I built a subwoofer using this Peerless driver after hearing Ed Schilling's (Horn Shoppe) simple subwoofer. Ed mounted this driver in an inverted 5 gallon pail loaded with quikrete at the lid end. There are instructions and photos on the Horn Shoppe forum for making this contraption.

    Those limited efforts result in a nimble, acoustic suspended, up-firing subwoofer that should mate well with just about any speaker. It isn't just a great little inexpensive subwoofer, it's articulate and natural sound place it firmly with the most "musical" of the genre. It's ability to reveal those bass layers and nuances make the system's overall presentation more coherent and believable. It's quite an eye-opener for little cash. And two are better than one (I'm all in for another after hearing the dynamic duo). )


    The Madisound Speaker Store

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    OT: Subwoofer project to support your Altecs.


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    Re: OT: Subwoofer project to support your Altecs.

    Parts ordered.
    I love this part of the instructions:

    Cut hole in bottom of bucket. Test the fit. Get another bucket if you screw it up.
    - Mike

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    OT: Subwoofer project to support your Altecs.


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    Re: OT: Subwoofer project to support your Altecs.

    Quote Originally Posted by Alien_Shore View Post
    Parts ordered.
    I love this part of the instructions:
    He's quite the character. That's part of the charm of this project for me. That, and he's not a home theater guy. This is reported to be a very musical sub. I pondered swapping out the Peerless driver for a Tang Band W8-704P which has "better" specs. But he insisted "do so at your own risk". "It works the way I designed it." I felt scolded and ordered the Peerless.

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    OT: Subwoofer project to support your Altecs.


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    Re: OT: Subwoofer project to support your Altecs.

    Alan,
    do you think this plate amp will work for one bucket?

    Dayton SA100

    If only running the one bucket, it'll be 8 ohm, so I'll only get 75w out of the amp, and figured that may not be enough oomph, especially that the sensitivity on the peerless is only 80-something...
    - Mike

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    OT: Subwoofer project to support your Altecs.


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    Re: OT: Subwoofer project to support your Altecs.

    Quote Originally Posted by Alien_Shore View Post
    Alan,
    do you think this plate amp will work for one bucket?

    Dayton SA100

    If only running the one bucket, it'll be 8 ohm, so I'll only get 75w out of the amp, and figured that may not be enough oomph, especially that the sensitivity on the peerless is only 80-something...
    It should. Bruce is using this one Bash 300W Digital Subwoofer Amplifier 300-750 for not much more $$$. I'm a fan of you can't have too much sub power.

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