View Full Version : Help for a DIY project
tweeter
12-13-2009, 04:11 PM
Hello,
after restoring a few little monitors, it´s the time to start a serious DIY project.
I´m thinking about floor monitors with two or three ways, 12 or 15 inch woofer, tweeter with horn and lens, in or outside the cabs, and perhaps a mid or supertweeter.
I would like to use drivers easy to find and not much expensive.
I´m concerned about the cabinets measures and the correct crossovers.
Any sugestion and help would be highly appreciated.
tweeter
12-17-2009, 01:58 AM
I would like a monitor like 4333 or L300.
What is better and easier to clone?
yggdrasil
12-17-2009, 02:34 AM
This project is fairly similar to the 4333/L300: http://audioheritage.org/vbulletin/showthread.php?t=8363 Finished project from post #6.
It will be harder than than 4333/L300 since you have to make the horns, and you'll most likely find the curved cabinets a bit harder to make too.
If you go for cloning a stock, or earlier project you can safely put all the drivers in the same cabinet.
If you plan on developing a speaker, you'll most likely benefit from having the drivers in separate cabinets for easy switching and moving around.
Cabinet measures: http://www.linearteam.dk/
Crossovers: http://sourceforge.net/projects/speakerworkshop/
Acoustical measuring: http://www.diyaudio.com/forums/multi-way/144984-holmimpulse-measuring-frequency-impulse-response.html?perpage=15&pagenumber=1
Reading: http://www.audioxpress.com/bksprods/products/bkaa68.htm
http://www.audioxpress.com/bksprods/products/bkaa45.htm
This should get you going.....
Zilch
12-26-2009, 01:18 AM
http://www.audioheritage.org/vbulletin/showthread.php?t=17238
macaroonie
12-26-2009, 10:02 AM
Yup ,Zilch thats the way I did it , and to date I am still very satisfied with the results. Visitors to my man cave are amazed at the clarity etc etc. In the end I have found that the best sonics are to be had with a lower Bass / Mid crossover point , prob about 650Hz. It did all take a while to run in , the 2235 in particular became more extended and less choked sounding.
It is the case that the M553 is quite sensitive to small adjustments but I guess I am happy in that I have not been near it for months.
I would expect that a treatment could be worked out for use with one of those nice waveguide thingy's and a 1.5 " driver but can you get the B/M as low ?
If you went true to the original X/O points you could certainly reduce the height of my build by a few inches and thus return to the original proportions a little.
Seasons greetings to all Mac
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