Hi,
I have a pair of Optimus STS-100 3 ways. One box was damaged so I stripped them and blueprinted the good one to build two new boxes. The woofers are poly cone radioshack units that sound like crap and need gargantuan boxes anyway. I'm seeking an efficient replacement woofer that will work well for a sealed box volume of 0.87 cu. ft. I'll be using the stock sealed 4 inch midrange drivers and Realistic Super Tweeters and ill probably build my own crossovers. Anyone have a good recommendation? Budget would be 50-75 for each woofer. Thank you ��
I have a pair of Optimus STS-100 3 ways. One box was damaged so I stripped them and blueprinted the good one to build two new boxes. The woofers are poly cone radioshack units that sound like crap and need gargantuan boxes anyway. I'm seeking an efficient replacement woofer that will work well for a sealed box volume of 0.87 cu. ft. I'll be using the stock sealed 4 inch midrange drivers and Realistic Super Tweeters and ill probably build my own crossovers. Anyone have a good recommendation? Budget would be 50-75 for each woofer. Thank you ��
DIY Philosophy: Don't thow a lot of good money into a mediocre design.
Idea one: learn how to measure the T/S parameters on your good woofer, and find replacement woofers. (Google search might help). Generic paper cone woofers like the Dayton RS225P-8 with Qts=0.33 often work OK in modest volume sealed boxes. Do not change (spend $$ on) the rest of the design, except perhaps to port the woofer(Google video)
Idea Two: Study and model your listening room using free tools. Select a well-proven 3-way design that meets your future goals. Spend $$$ on this proven good design for lifetime enjoyment.
===============
Got some change?
There are several good tutorials on how to measure T/S parameters. A few coins are often used for a known mass.
Download free sine sweep program + DVM + a couple resistors + small(20-50gram) weight + basic math.
With T/S parameters folks can suggest the best usage and cabinet change options. There is a thread on designing a decent crossover without mic measurements which you can read.
Measuring Loudspeaker Driver Parameters
T-S Parameter Calculator
SB Acoustics :: Technical Notes
http://www.diyaudio.com/forums/mult...designing-crossovers-without-measurement.html
Parts Express Speaker Projects
Idea one: learn how to measure the T/S parameters on your good woofer, and find replacement woofers. (Google search might help). Generic paper cone woofers like the Dayton RS225P-8 with Qts=0.33 often work OK in modest volume sealed boxes. Do not change (spend $$ on) the rest of the design, except perhaps to port the woofer(Google video)
Idea Two: Study and model your listening room using free tools. Select a well-proven 3-way design that meets your future goals. Spend $$$ on this proven good design for lifetime enjoyment.
===============
Got some change?
There are several good tutorials on how to measure T/S parameters. A few coins are often used for a known mass.
Download free sine sweep program + DVM + a couple resistors + small(20-50gram) weight + basic math.
With T/S parameters folks can suggest the best usage and cabinet change options. There is a thread on designing a decent crossover without mic measurements which you can read.
Measuring Loudspeaker Driver Parameters
T-S Parameter Calculator
SB Acoustics :: Technical Notes
http://www.diyaudio.com/forums/mult...designing-crossovers-without-measurement.html
Parts Express Speaker Projects
Thanks for the advice. Moments after I posted this, I found a generic square frame woofer at Simply Speakers. I took the TS parameters and called PE. Told them the box size and they said this little 25 dollar woofer would fit the bill perfectly. Best part is the stock woofer was a square frame driver too �� Thanks again
- Status
- Not open for further replies.