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  1. #61

    Default Re: My first "from scratch" build (with help)

    Quote Originally Posted by Wolf View Post
    Likely. DC caps sees AC- BLAMMO!

    I do have one concern, and it's not to second guess Johnny, but is this a 3rd order bass alignment/Passive-Assist/Cap-Assisted rollofff on the woofer?

    The F6 is capable of good bass, and I would vent it like Shawn did his Pluggers project.

    You'll love the midrange from the F6 too....
    Wolf
    Nawp, port right out the back
    http://www.youtube.com/watch?v=j9jROjFPAis
    Why you should never support dog shows or breeders

    http://www.facebook.com/GcfCustomAudio

    Facebook

    My Website, a work in progress.


    "When a true genius appears in this world, you may know him by this sign, that the dunces are all in confederacy against him." -Jonathan Swift

    "Sure, the placebo effect is real - but there ain't no sugar pill gonna cure cancer."

    *Gort

  2. #62
    Join Date
    Sep 2005
    Location
    Indiana
    Posts
    17,572
    Blog Entries
    29

    Default Re: My first "from scratch" build (with help)

    Quote Originally Posted by johnnyrichards View Post
    Nawp, port right out the back
    Then why would he require a 100uF cap? That's why I thought what I did.

    Later,
    Wolf
    "Wolf, you shall now be known as "King of the Zip ties." -Pete00t
    "Wolf and speakers equivalent to Picasso and 'Blue'" -dantheman
    "He is a true ambassador for this forum and speaker DIY in general." -Ed Froste
    "We're all in this together, so keep your stick on the ice!" - Red Green aka Steve Smith
    "We don't just make a crossover, we make a statement!" - Lawrence Fishburne for Cadillac

    *InDIYana 2013 event*

    Photobucket pages:
    http://photobucket.com/Wolf-Speakers_and_more

    My blog/writeups/thoughts here at PE:
    http://techtalk.parts-express.com/blog.php?u=4102

  3. #63

    Default Re: My first "from scratch" build (with help)

    Tweeter fs comp.
    http://www.youtube.com/watch?v=j9jROjFPAis
    Why you should never support dog shows or breeders

    http://www.facebook.com/GcfCustomAudio

    Facebook

    My Website, a work in progress.


    "When a true genius appears in this world, you may know him by this sign, that the dunces are all in confederacy against him." -Jonathan Swift

    "Sure, the placebo effect is real - but there ain't no sugar pill gonna cure cancer."

    *Gort

  4. #64
    Join Date
    Sep 2005
    Location
    Indiana
    Posts
    17,572
    Blog Entries
    29

    Default Re: My first "from scratch" build (with help)

    Quote Originally Posted by johnnyrichards View Post
    Tweeter fs comp.
    Ahhh...light dawneth.

    I don't recall how I treated the FS on the MAX, but I know I used an LCR.

    It's all clear now....
    Wolf
    "Wolf, you shall now be known as "King of the Zip ties." -Pete00t
    "Wolf and speakers equivalent to Picasso and 'Blue'" -dantheman
    "He is a true ambassador for this forum and speaker DIY in general." -Ed Froste
    "We're all in this together, so keep your stick on the ice!" - Red Green aka Steve Smith
    "We don't just make a crossover, we make a statement!" - Lawrence Fishburne for Cadillac

    *InDIYana 2013 event*

    Photobucket pages:
    http://photobucket.com/Wolf-Speakers_and_more

    My blog/writeups/thoughts here at PE:
    http://techtalk.parts-express.com/blog.php?u=4102

  5. #65

    Default Re: My first "from scratch" build (with help)

    Quote Originally Posted by Wolf View Post
    Ahhh...light dawneth.

    I don't recall how I treated the FS on the MAX, but I know I used an LCR.

    It's all clear now....
    Wolf
    Yep, LCR comp circuit. We are not publishing the schematic details until Brian is done tweaking them, but there is nothing too out of the ordinary, typical 4th order LR.
    http://www.youtube.com/watch?v=j9jROjFPAis
    Why you should never support dog shows or breeders

    http://www.facebook.com/GcfCustomAudio

    Facebook

    My Website, a work in progress.


    "When a true genius appears in this world, you may know him by this sign, that the dunces are all in confederacy against him." -Jonathan Swift

    "Sure, the placebo effect is real - but there ain't no sugar pill gonna cure cancer."

    *Gort

  6. #66
    Join Date
    Sep 2010
    Location
    Iowa
    Posts
    266

    Default Re: My first "from scratch" build (with help)

    Quote Originally Posted by Wolf View Post
    Then why would he require a 100uF cap? That's why I thought what I did.

    Later,
    Wolf
    So, for a pure learning experience, why wouldn't I require a 100uF cap? Er, how does the port affect the capacitor value? Or if I even needed a cap at all?

    Just curious, honestly. I wanna start learning more about the crossover design and the reason behind things.
    -Brian

  7. #67
    Join Date
    Sep 2010
    Location
    Iowa
    Posts
    266

    Default Re: My first "from scratch" build (with help)

    Quote Originally Posted by johnnyrichards View Post
    yep, Lcr Comp Circuit. We Are Not Publishing The Schematic Details Until Brian Is Done Tweaking Them, But There Is Nothing Too Out Of The Ordinary, Typical 4th Order Lr.
    Lcr? Lr? :-/
    -Brian

  8. #68
    Join Date
    Sep 2005
    Location
    Indiana
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    Blog Entries
    29

    Default Re: My first "from scratch" build (with help)

    Quote Originally Posted by B_Rich View Post
    So, for a pure learning experience, why wouldn't I require a 100uF cap? Er, how does the port affect the capacitor value? Or if I even needed a cap at all?

    Just curious, honestly. I wanna start learning more about the crossover design and the reason behind things.
    LR4 from above refers to Linkwitz-Riley, a slope alignment of 4th order acoustic with specified Q.

    LCR means component parts; coil, cap, resistor in a string.

    Since the 100uF cap is on the tweeter circuit, it has no effect on the box alignment. You see- I misevaluated the purpose.

    Later,
    Wolf
    "Wolf, you shall now be known as "King of the Zip ties." -Pete00t
    "Wolf and speakers equivalent to Picasso and 'Blue'" -dantheman
    "He is a true ambassador for this forum and speaker DIY in general." -Ed Froste
    "We're all in this together, so keep your stick on the ice!" - Red Green aka Steve Smith
    "We don't just make a crossover, we make a statement!" - Lawrence Fishburne for Cadillac

    *InDIYana 2013 event*

    Photobucket pages:
    http://photobucket.com/Wolf-Speakers_and_more

    My blog/writeups/thoughts here at PE:
    http://techtalk.parts-express.com/blog.php?u=4102

  9. #69
    Join Date
    Sep 2010
    Location
    Iowa
    Posts
    266

    Default Re: My first "from scratch" build (with help)

    Had a pretty good listening session tonight. Also downloaded a remote app for my phone so I can control MediaMonkey and the rest of my computer simply from my phone while I'm on the couch. Didn't have to get up at all


    -Brian

  10. #70
    Join Date
    Feb 2008
    Location
    Columbus
    Posts
    1,881
    Blog Entries
    5

    Thumbs up Re: My first "from scratch" build (with help)

    Wolf: 100 uF would be much too small of a cap for a high pass on the woofer below tuning frequency - "...typically between 500 uF and 1500 uF" (Wolf) I've even seen over 2,000 uF used...

    Interesting how that woofer's got that rounded edge on the face - I would surface mount that, looks good.

    Look here: http://www.zaphaudio.com/mtg-surface.html

    Two important notes:
    1: ignore the measurements below ~150 hz
    2: This is the picture you want: "Flush mounted tweeter, effects of surface mount woofer spaced 1" from tweeter flange"

    EDIT: I replied too soon, I see you already choose to surface mount the woofers. Well, if you had not seen that link already, that will re-assure you that you made the right decision.

    The gap around the tweeter will have more negative effect than the surface mounting of the woofers (prob. not significant though).
    Attached Thumbnails Attached Thumbnails Click image for larger version. 

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    http://www.ohmspeakers.com <- I like to stop in and see my old buddies there when I'm in NYC

  11. #71
    Join Date
    Sep 2005
    Location
    Indiana
    Posts
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    Blog Entries
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    Default Re: My first "from scratch" build (with help)

    Quote Originally Posted by critofur View Post
    Wolf: 100 uF would be much too small of a cap for a high pass on the woofer below tuning frequency - "...typically between 500 uF and 1500 uF" (Wolf) I've even seen over 2,000 uF used...
    If that's a quote from me, it was for Passive Assisting, not highpassing. I've used 150uF caps more than once for wide-range drivers to limit bass.

    Later,
    Wolf
    "Wolf, you shall now be known as "King of the Zip ties." -Pete00t
    "Wolf and speakers equivalent to Picasso and 'Blue'" -dantheman
    "He is a true ambassador for this forum and speaker DIY in general." -Ed Froste
    "We're all in this together, so keep your stick on the ice!" - Red Green aka Steve Smith
    "We don't just make a crossover, we make a statement!" - Lawrence Fishburne for Cadillac

    *InDIYana 2013 event*

    Photobucket pages:
    http://photobucket.com/Wolf-Speakers_and_more

    My blog/writeups/thoughts here at PE:
    http://techtalk.parts-express.com/blog.php?u=4102

  12. #72
    Join Date
    Sep 2010
    Location
    Iowa
    Posts
    266

    Default Re: My first "from scratch" build (with help)

    Took the last week to finish them up, ended up going with a satin black with a flat clear coat. I'm fairly happy with the finish

    I want to say thanks again to Johnny Richards for helping me with this entire build, including designing the crossover.


    -Brian

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