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Re: Cheap Bookshelf Ideas

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Matts_

(A)

In Reply to: Cheap Bookshelf Ideas posted by Paully on September 22, 2005 at 08:27:24:

for inexpensive bookshelf-type speakers, the Studio Pi's (1 and 2) are great. Good synergism with low-wattage tube amps, too. Way better than computer speakers.

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Re: Cheap Bookshelf Ideas - Paully 10:14:01 09/22/05 (9)
Those present an interesting idea, especially for $80. It doesn't look like it would be too difficult to hook up either. Do they come with good instructions? I suppose I could easily stick them in a Parts Express Dayton box and be done with it? How do I figure out what box would work with the kit?
- Re: Cheap Bookshelf Ideas - Matts_ 13:32:16 09/22/05 (7)
  These speakers are just very simple boxes- with 3 circles cut into baffle, one for each driver and one for the port, and a hole in the rear for the terminal. If you have a cooperative Home Depot or other lumberyard, they can cut a sheet of plywood for you for $0.25/cut or so, and they can be screwed and glued together. They can be thrown together if you want, or made as nice as you want if that's the goal. Electronic yoke, what there is of it, is prewired. I'm not sure if there is a Parts Express box that would work. Some people get a cabinetmaker to make the boxes and it's still a good deal. I have some Two's here in ATL for a short while, replacing them with Stage 4's.
  - Hey, where do you live in Atlanta? - Paully 12:51:40 09/23/05 (6)
    Just moved from Atlanta to Columbus a few months ago. So still not that far. Used to live in the Northlake area.
    - Re: Hey, where do you live in Atlanta? - Matts_ 13:15:28 09/23/05 (5)
      intown- near Buckhead
      - Re: Hey, where do you live in Atlanta? - WERA689 17:11:54 09/23/05 (1)
        
        In Reply to: Re: Hey, where do you live in Atlanta? posted by Matts_ on September 23, 2005 at 13:15:28:
        
        Hi, guys! I'm in Stone Mountain, and, though I've posted here before, I'm still pretty new to this DIY stuff. I didn't even know there WAS an Atlanta Audio Society!
        Neil
        
        There is - Paully 17:53:04 09/23/05 (0)
        
        In Reply to: Re: Hey, where do you live in Atlanta? posted by WERA689 on September 23, 2005 at 17:11:54:
        
        And they do put on pretty good shows from time to time. Their vintage show was a lot of fun and I have learned a some about what I don't like.
        http://www.mindspring.com/~chucksaudio/ (Open in New Window)
      - Neat maybe I will see you at the Atlanta Audio Society meeting sometime (nt) - Paully 13:46:22 09/23/05 (2)
        
        In Reply to: Re: Hey, where do you live in Atlanta? posted by Matts_ on September 23, 2005 at 13:15:28:
        
        .
        
        Re: Neat maybe I will see you at the Atlanta Audio Society meeting sometime (nt) - Matts_ 19:13:52 09/23/05 (1)
        
        In Reply to: Neat maybe I will see you at the Atlanta Audio Society meeting sometime (nt) posted by Paully on September 23, 2005 at 13:46:22:
        
        maybe, but I'd rather build something or drink & listen to music than do a factory or store tour! :)
        
        Re: Neat maybe I will see you at the Atlanta Audio Society meeting sometime (nt) - Paully 09:15:46 09/24/05 (0)
        
        In Reply to: Re: Neat maybe I will see you at the Atlanta Audio Society meeting sometime (nt) posted by Matts_ on September 23, 2005 at 19:13:52:
        
        The factory tours I could do without, but the store tours and the actual demos they have in that clubhouse are nice.
- Re: Cheap Bookshelf Ideas - Dyna Saur 10:40:11 09/22/05 (0)
  The Specifications and Thiele/Small Parameters apply here:
  The parameter that relates to box volume is the Vas which is the overall "compliance" of the speaker. This is defined as the volume of air that has the same compliance (or springiness) of the driver.
  This can be used to determine the proper box size/volume for a woofer. Tweeters and sealed back midranges do not have a Vas rating.
  If you're using a Parts Express catalog, they have tables giving all the parameters and the recommended sealed and vented (ported) box volumes, this is good reference any which way, and can be found on pages 147-149, and 186-187, in the 2005 Parts Express catalog. This can also be found through the Parts Express website, they have the catalog in PDF format and individual pages can be opened and printed as needed.
  HTH
  /ed B in NH

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