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  1. #1

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    Default New rack to replace ghetto end tables

    Well I got tired of trying to get behind my tables to do wiring. A friend had a tall rack that was going to be thrown away. It was 45" tall single column. I cut it in half, and used a shelf between to tie them together. Another neighbor gave me some nice BB casters to improve mobility. When I repair my GFA-585 it will reside in the space to the right. The space in the middle will be for my customer center speaker.


    Yes I need to clean it up! The ICs are not near the power cables or speakers! This took out a lot of hum I was getting!

    Edit: Total cost= Zip, zero, nadda!!!
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    Last edited by ben62670; 08-05-2007 at 11:45 PM.
    Please. Please contact me a ben62670 @ yahoo.com. Make sure to include who you are, and you are from Polk so I don't delete your email. Also I am now physically unable to work on any projects. If you need help let these guys know. There are many people who will help if you let them know where you are.
    Thanks
    Ben

  2. #2

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    It might not have cost you anything but it looks terrible. Didn't you just build a set of custom SDA Frankepolk's? and that's what you set your gear on?

  3. #3

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    So what are you proposing? A DIY rack to hold what you have? Future purchases in consideration?

    Nice gear.
    In search of accurate reproduction of music. Real sound is my reference and while perfection may not be attainable? If I chase it, I might just catch excellence.

    "The best way to enjoy digital music reproduction is to never listen to good analogue reproduction". - Kenneth Swauger

  4. #4

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    Quote Originally Posted by dorokusai View Post
    It might not have cost you anything but it looks terrible. Didn't you just build a set of custom SDA Frankepolk's? and that's what you set your gear on?
    OUCH! I know I need to spend a little time with zip straps, but looks terrible?
    Please. Please contact me a ben62670 @ yahoo.com. Make sure to include who you are, and you are from Polk so I don't delete your email. Also I am now physically unable to work on any projects. If you need help let these guys know. There are many people who will help if you let them know where you are.
    Thanks
    Ben

  5. #5

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    It probably sounds terrible too. :)

    Keep in mind that the same system can sound totally different depending upon what you sit it on. The soft tops and sides certainly create instability.

    You want the truth, right?
    madmax

    btw, I don't think it looks too bad.

    Edit: I take back the last statement. Those amps need to be sitting on amp stands in front of the speakers, a little off to the sides. :)
    Last edited by madmax; 08-06-2007 at 10:02 AM.
    Vinyl, the final frontier...

    Avantgarde horns, 300b tubes, thats the kinda crap I want... :D

  6. #6

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    The amps are sitting on 1 inch mdf, and not touching the sides.
    Thanks Ben

    Edit: The power wires are no closer than 4 inches to any IC's, and it has cleared up a lot of noise. The large amp is an Adcom GFA-5800 which is fan fed , and does not get hot.
    Last edited by ben62670; 08-06-2007 at 10:58 AM.
    Please. Please contact me a ben62670 @ yahoo.com. Make sure to include who you are, and you are from Polk so I don't delete your email. Also I am now physically unable to work on any projects. If you need help let these guys know. There are many people who will help if you let them know where you are.
    Thanks
    Ben

  7. #7

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    I hope you didn't take that as a put down. It was meant with the best of intentions. That is some fine equipment to be sitting on a cart.
    madmax
    Vinyl, the final frontier...

    Avantgarde horns, 300b tubes, thats the kinda crap I want... :D

  8. #8

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    Quote Originally Posted by madmax
    That is some fine equipment to be sitting on a cart.
    I agree Ben, all due respect. I thought when you had posted the picture, that this was the rack that you were going to replace. Please take no offense.

    If you have anybody that can make it up to Charlotte and pick up my old stand, you are more than welcome to have it. It is a "contemporary" oak peice [back in 1988] that I have obviously had for a long time. I have upgraded my audio stand recently and the other half is gettin' on me about getting it out of the house. It's yours if you want it.
    In search of accurate reproduction of music. Real sound is my reference and while perfection may not be attainable? If I chase it, I might just catch excellence.

    "The best way to enjoy digital music reproduction is to never listen to good analogue reproduction". - Kenneth Swauger

  9. #9

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    BEN,

    Did you still need the mono cd? If so pm me your address and I will mail it to you this week.
    From the bottom it looks like a steep incline, From the top another down hill slope of mine. But I know the equilibrium's there! .."Faith No More" :D
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  10. #10

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    OK guys I don't understand the issues with the stand. I am trying to understand what issues are prevalent here. The unit is very strong, and was actually a professional Audio rack that was taller that I had cut in half, and widened.
    Thanks for your help.
    Ben
    Last edited by ben62670; 08-06-2007 at 11:32 AM.
    Please. Please contact me a ben62670 @ yahoo.com. Make sure to include who you are, and you are from Polk so I don't delete your email. Also I am now physically unable to work on any projects. If you need help let these guys know. There are many people who will help if you let them know where you are.
    Thanks
    Ben

  11. #11

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    You didn't say it was a DIY project. LOL

  12. #12

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    You might consider building a wood "skirt" to go around the bottom of the rack to hide the casters.
    "Polk SDA-SRSs are hopelessly out of date both sonically and technologically... I see no value whatsoever in older SDA speakers."~Audio Asylum Member
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  13. #13
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    I think you will win teacher of the year when you pull that into your classroom.

    For me it's all about functionality but the comments about looks are valid so take them into consideration and compromise: buy a throw to cover it up when you're not using it.

  14. #14

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    In general most equipment needs to be isolated totally or tied to something firmly to transmit vibrations to and or from other masses, or isolated so as not to. Some things vibrate about the vertical plane, others in the horizontal plane. In general, vibrating somewhat at a medium frequency resonance is about worst case. Your cart will provide this problem without doubt.

    With all that mindless mumbo-jumbo being said (and me admitting I don't really understand most of it) most amps sound much better if spiked to something of high mass. Tubes especially but SS as well.

    Besides, your system could look SO cool if given the chance.

    The MDF was a good attempt at a start of controlling resonance but with the vertical and horizontal movement possible from the soft cart on wheels, it just can't be good.
    Vinyl, the final frontier...

    Avantgarde horns, 300b tubes, thats the kinda crap I want... :D

  15. #15

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    The cart is very very stiff. You guys know how much Adcoms weigh. With my back I need the casters. The uprights are steel with rolled edges, not flimsy in the least. I don't do skirts unless you get me drunk enough:D With the weight of the amps I figured it would be plenty solid enough. Also I am looking for a sheet of sorbothane to place under my CD, DVD, and PrePro.
    I am one of those guys who needs to know why.
    Thanks for your patients Ben
    Please. Please contact me a ben62670 @ yahoo.com. Make sure to include who you are, and you are from Polk so I don't delete your email. Also I am now physically unable to work on any projects. If you need help let these guys know. There are many people who will help if you let them know where you are.
    Thanks
    Ben

  16. #16

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    There is a difference between solid and soft. Flimsy or non-flimsy doesn't really describe it. We are talking about vibration which moves stuff around by maybe 1/10,000 of an inch. It has a force that would take a concrete slab to transfer the energy to. It has massive acceleration and deceleration fast enough to make capacitors noisy. Its a whole area of this hobby we should all probably know a lot more about. I get into la la land whenever I start reading about it.
    madmax
    Vinyl, the final frontier...

    Avantgarde horns, 300b tubes, thats the kinda crap I want... :D

  17. #17

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    Thanks MM. I figured MDF would be the next best thing to Maple. Thats what I hear any way.
    Please. Please contact me a ben62670 @ yahoo.com. Make sure to include who you are, and you are from Polk so I don't delete your email. Also I am now physically unable to work on any projects. If you need help let these guys know. There are many people who will help if you let them know where you are.
    Thanks
    Ben

  18. #18

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    the amp may work fine but when you spend so much money on the gear why not spend a few bucks to get a decent looking stand.

    seems sturdy but no even on the WAF radar imo.

    in terms of dampening for your audio equipment it just comes down getting a rack that will absorb any external energy being transmitted via the ground from your speakers. the bass is prolly the biggest culprit due to its larger amounts of energy so if your stand has a high natural frequency, you should be fine. only way to test if it does is to put it on a shake table though im afraid.

    im looking for a rack as well and the cheapest but best looking ones i could find were made by vti. im sure they can hold your amps fine.

    Tom

  19. #19
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    Quote Originally Posted by madmax View Post
    There is a difference between solid and soft. Flimsy or non-flimsy doesn't really describe it. We are talking about vibration which moves stuff around by maybe 1/10,000 of an inch. It has a force that would take a concrete slab to transfer the energy to. It has massive acceleration and deceleration fast enough to make capacitors noisy. Its a whole area of this hobby we should all probably know a lot more about. I get into la la land whenever I start reading about it.
    madmax
    Are vibrapods the answer? Have they been tested? The seller gave me 3 for the last cd player I bought but I haven't bought anymore because they are a little pricey.

  20. #20

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    Quote Originally Posted by candyliquor35m View Post
    Are vibrapods the answer?
    Every scenario is different. I had one CD player that responded exceptionally well with spikes that everyone else was using vibrapods and little roller bearings on. Oh, and another CD that responded well on soft foam or vibrapods. You just have to give it a try and if you can hear a difference then make a decision.
    madmax
    Vinyl, the final frontier...

    Avantgarde horns, 300b tubes, thats the kinda crap I want... :D

  21. #21

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    Quote Originally Posted by surfntomm View Post
    the amp may work fine but when you spend so much money on the gear why not spend a few bucks to get a decent looking stand.

    seems sturdy but no even on the WAF radar imo.

    in terms of dampening for your audio equipment it just comes down getting a rack that will absorb any external energy being transmitted via the ground from your speakers. the bass is prolly the biggest culprit due to its larger amounts of energy so if your stand has a high natural frequency, you should be fine. only way to test if it does is to put it on a shake table though im afraid.

    im looking for a rack as well and the cheapest but best looking ones i could find were made by vti. im sure they can hold your amps fine.

    Tom
    I spend very little at a time. No waf involved. If you say my Speakers you would understand. I am into functionality, and with a center speaker in the middle, and my GFA-585 in the other hole It would look complete. Yes I was considering pods of some sort, and maybe some dynomat on the inside of the opticals.
    Please. Please contact me a ben62670 @ yahoo.com. Make sure to include who you are, and you are from Polk so I don't delete your email. Also I am now physically unable to work on any projects. If you need help let these guys know. There are many people who will help if you let them know where you are.
    Thanks
    Ben

  22. #22

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    I think the picture makes it look worse than it really is. The picture is taken from a low angle, where you see the wires readily, and the flash really highlights all of it. I think it looks fine, but I would probably paint the metal above the castors black. Overall it's a bunch of really cool stuff on a simple rack. :)

  23. #23

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    OK ben its not a brand new rack or anything but it definetely has some potential, velcro straps for removability and a good eye clean her right up. And yes its better that the stands you had because they were for the end of a couch not equipment. I say you did good


    Oh yea it looks just HORRIBLE! (Not that bad really just had to say that because everyone else did) !
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  24. #24

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    So long as it's sturdy, & he can move it when he needs to, I think is all that really matters.

    I think it took a bit of ingenuity to do what he did. My hat's off to him!
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  25. #25

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    i think the custom DIY rack looks ok.

    but my question is.. how many amps does you use? I see two 5 channel amps.. and the big adcom is what a 2 channel one.. and then you talk about the other adcom not shown in the picture.. that's what enough amps to power ... Wrigley Field, Dodger stadium, and Yankee Stadium. Holy sheite!! ;)
    Last edited by danger boy; 08-12-2007 at 01:41 PM.

  26. #26

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    Quote Originally Posted by madmax View Post
    .....We are talking about vibration which moves stuff around by maybe 1/10,000 of an inch. It has a force that would take a concrete slab to transfer the energy to. It has massive acceleration and deceleration fast enough to make capacitors noisy. Its a whole area of this hobby we should all probably know a lot more about. I get into la la land whenever I start reading about it.
    madmax
    Is there a link or direction you could point me in so I may get my read on?

    Thanks,

    Ben
    Wris****ch--->Crisco

  27. #27

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    I was looking into all sorts of vibration ideas back when I did my turntable. That was awhile ago. I started by looking into turntable stands that had links to many websites discussing how energy gets transfered. Probably a google of "vibration energy transfer" would get you into some of it. Lots of links with DIY rack articles too.
    Vinyl, the final frontier...

    Avantgarde horns, 300b tubes, thats the kinda crap I want... :D

  28. #28

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    Good job.

    It looks nice!
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  29. #29

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    Total cost= Zip, zero, nadda!!!
    Free sh*t rocks!

    Enjoy your rack.


    G

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