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Get familiar with the reaction system: Introducing the Reaction System

IOWA DIY 2023

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  • Scott describes his latest 2-way design and how he dealt with a port resonance.

    6thplanetjr@machifiside
  • edited October 2023

    David (a4eaudio) took the 5” SB challenge.


    6thplanetjr@machifiside
  • Mark repaired some old speakers for a customer that had sentimental value. The little SB mid-woofer fit the holes.

    jr@mac
  • JR pushes the Hiquphon OW1 a little lower than most - and pulls it off beautifully!

    tajanes4thtry6thplanetjr@machifiside
  • edited October 2023

    JR used some imported drivers to build this 3-way. Brad (Jule Fidelity) will be selling the woofers on his site.

    4thtry6thplanetjr@machifiside
  • Scott designed these with a 10” Eminence coax.

    Billet6thplanetjr@machifiside
  • Thanks for all the pics, Tom! It is almost like being there in person. Lots of interesting looking designs. Keep them coming! :+1:

    jr@mac
  • edited October 2023

    John hooking up his isobaric RS225p design. Marvin noted the color coordination with his shirt.

    4thtry6thplanetjr@machifisidetajanes
  • @4thtry said:
    Thanks for all the pics, Tom! It is almost like being there in person. Lots of interesting looking designs. Keep them coming! :+1:

    You were right - It's so easy with the iPhone. Shoot and post immediately to the forum!
    I brought one of my mirrorless cameras but left it in my room.

    jr@machifiside
  • edited October 2023

    David also has an isobaric design using RS-225s.

    4thtry6thplanetjr@machifiside
  • edited October 2023

    Unique design by Clay! Pictures don’t do the transmission line cabinets justice.

    4thtry6thplanetjr@machifiside
  • Kelly brought a 3-way active Linkwitz design.


    6thplanetjr@machifiside
  • Ron pushing the boundaries again - using a Dayton subwoofer driver with an AMT.

    4thtry6thplanetjr@machifiside
  • Clay's stuff is always eggceptional, and very unique.

    Miss you guys....

    jr@machifiside
  • Robert shows off his all Usher Dennis Murphy design.

    6thplanetjr@machifisidetajanes
  • Alright, "Brian"! Haven't seen you for a bit...

    hifiside
  • edited October 2023

    JR tells us the proceeds from these drivers will go to MAC activities!


    jr@machifiside
  • edited October 2023

    Mark shows off his sealed MTM.

    kenrhodes4thtry6thplanetjr@machifiside
  • Mike, a friend of Dave Ellis, brought the 3rd Dennis Murphy design.

    4thtry6thplanetjr@machifiside
  • Curt used an SB 8” woofer and the Morel mid/tweeter combo.

    4thtry6thplanetjr@machifisidetajanes
  • The drivers Brad used in this stand mount speaker are for sale on his site.

    4thtry6thplanetjr@mac
  • David brought a design using a Peerless XT in a Visaton waveguide.

    4thtry6thplanetjr@machifiside
  • Matt brought his floorstander that uses a 4” Tang Band with a Goldwood woofer.

    4thtryjr@mac6thplanethifiside
  • Nick (uglywoofer) awes us again with his craftsmanship - then the music started!

    tajanes4thtryjr@mac6thplanethifiside
  • edited October 2023

    Craig tried a few new things on this design. Double chamber reflex with a passive radiator & 2nd order slopes. The low end response was quite surprising for a 6" woofer. A few of us heard the ceiling tiles rattle a bit at one point.
    Stands courtesy of Scott.

    tajanes4thtryjr@mac6thplanethifiside
  • Curt & Jim are at it again. And they were smart enough to bring a cart to move them into position!

    4thtryjr@mac6thplanethifiside
  • If you ask Brad, he’ll say these are made from a bunch of cheap scraps of wood he had laying around, some bodywork materials and some paint. He’s incredibly modest regarding his ability to design amazing beautiful speakers.

    johnny5jzSteve_Leetajanes4thtryjr@mac6thplanethifiside
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