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Heeman's New DIY MTM Project

Big step today!

Glued the tee-pee's to the back of the baffle.

Prior to this, I connected the wires for the midranges.

I needed to get them straight and centered.

The level was clamped in place to give me a straight edge on one axis at the correct distance. I lined up the tee-pee's and outlined them.

Knowing that the tee-pee's will slide on the glue, I used the clamps to progressively apply pressure as they were aligned. Once aligned, I placed 70 lbs on top.

Fingers crossed at this point. Tomorrow AM I will remove the weights and clamps and repeat this process on the other baffle.

20250305_124109.jpg20250305_142349.jpg20250305_142413.jpg
 
I went back thru the thread to make sure I didn't just miss it. What drivers are you using? Are you using external electronic crossovers? What is your plan for amps?
 
Haywood said:
I went back thru the thread to make sure I didn't just miss it. What drivers are you using? Are you using external electronic crossovers? What is your plan for amps?
Click to expand...
This will be an MTM Design using the Ultra-Low Distortion Purifi Midrange drivers and Morel TSCT Tweeters.

Active crossovers. MiniDSP 2X4HD.

My Parasound Halo A21 will drive the midrange. (This is currently driving the C1's)

I am taking a high current class A/B, 80W/channel amp out of storage to drive the tweeters.
 
heeman said:
This will be an MTM Design using the Ultra-Low Distortion Purifi Midrange drivers and Morel TSCT Tweeters.

Active crossovers. MiniDSP 2X4HD.

My Parasound Halo A21 will drive the midrange. (This is currently driving the C1's)

I am taking a high current class A/B, 80W/channel amp out of storage to drive the tweeters.
Click to expand...
Wow. I just went to Madisound and ran the math. Those things are going to be an absolutely insane value for that kind of performance.
 
Haywood said:
I was pretty close. I estimated $3K +/-. Those are going to be INSANE for that money. I want to build something that nice someday.
Click to expand...
Considering the C1's were $8K/pair these should be killer for the money.

Without Franklin's design skills this would not be possible.

Also the ability to tune them specifically to my excellent room, the results should be amazing.
 
heeman said:
Considering the C1's were $8K/pair these should be killer for the money.

Without Franklin's design skills this would not be possible.

Also the ability to tune them specifically to my excellent room, the results should be amazing.
Click to expand...
Franklin's designs are incredible. I'd go with something he designed over anything I'm going to find in a store.
 
CMonster said:
If you need a second one, let me know. I have one that I used briefly, but it’s now just sitting on a shelf.
Click to expand...
If you are selling and no one is biting, let me know. I don't need one right now, but I tend to buy about 3 to 5 a year.
 
I believe these will be among the best sounding speakers of this class (traditional cone drivers in a modest sized solution) used today. I don't know how it could get much better without some VERY costly, complex, and size/shape changes which would make no sense for @heeman to use.
 
Sanding, spot putty and sanding.....

Ready for paint.

Flat paint on the back and sides. Satin on the baffle and baffle edges.

20250312_131349.jpg
 
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