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Dave A

Super MWM

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8 minutes ago, jwc said:

Dave.  Just a reminder....I like your curve.  Just adding points for thought.

 

Full reflector would look "something like" this: 

 

Not saying do it......just a point

I think Dave made the backs removable, so he could add more material to them, which "might could" improve the higher end of the band by a few Decibels, in theory anyhow.

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11 minutes ago, jwc said:

Full reflector would look "something like" this: 

 

That would make more sense to me (just logic and nothing else), so the wave front wouldn't just bounce straight off the back and up the throat.

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400 ain't all that high, but as you move up in the spectrum sound waves want to turn corners less and less.  So it stands to reason 400 wants to turn less than 40 does.  I'd experiment with more diversionary tactics if it were me, if reasonably feasible.  Maybe even something kind of swoopy.

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3 hours ago, jwc said:

Dave.  Just a reminder....I like your curve.  Just adding points for thought.

 

Full reflector would look "something like" this: 

 

Not saying do it......just a point

 

 

 

 

Smwm-hack-01.jpg

The decision  process here was that I wanted to maintain expansion so that if I drew a circle where the 9.25" dimension from plenum end to back side there would be no reduction in  volume. The splitter could have been larger but I was not given or able to find info on what size was right so I guessed.

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So.  Tell us about the bass.  It has to be in your face.

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1 hour ago, jwc said:

So.  Tell us about the bass.  It has to be in your face.

Well my wife keeps telling me I need to turn the bass up and come in the house and feel the beat. Now you know how women misrepresent things like that but all kidding aside it is awesome. My purpose in hearing those big pipe organs has been accomplished. It is surprising how much bass I had been missing and the combination of Audacity and a horn capable of playing lower notes has been eminently satisfying.

  I had a pair of EV-TL440's which were good to 20hz. They were very fatiguing and in short order somewhat painful, These S-MWM's of course don't go as low but man are they fun. I find myself looking for  firework and lightning and helicopter audio and the clear sound and thump is amazing.

 

  I went by Cory's a while back and he demoed his Jubes with an x-box and  Star wars game. The thump of explosions was pretty darned good and the sound effects great. But they were like you were in the general area of the action and these S-MWM's put the booms two feet away.  You know you are invited to stop in if you are ever up here.

 

  I have a poor listening environment and I wonder what they would be like in a good one. Some day I am going to roll them to the big door in my shop, point them out and let them rip.

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10 hours ago, Dave A said:

Some day I am going to roll them to the big door in my shop, point them out and let them rip.

Yes, and with only 8 watts, they will do plenty of ripping at around 115 db!

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4 hours ago, ClaudeJ1 said:

Yes, and with only 8 watts, they will do plenty of ripping at around 115 db!

Yes, music for the whole valley. SO do you feel guilty yet about making me spend my money???

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Guilty?  Another emotion comes to mind as he awaits the royalty payments you're getting yet further behind on!

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7 hours ago, Dave A said:

Yes, music for the whole valley. SO do you feel guilty yet about making me spend my money???

Never. It was fun to be part of the evolution on your dime! But I do think you should try JWC's modification. I believe it would improve the high end of the woofer acoustically between 300-400 Hz. Now you know why I wanted you to make the backs removable.

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