My Translam Monoque Project

Einric · 22nd July 2011, 06:05 PM

Hello All,

I am beginning my Translam project and I have chosen to make it one solid piece. I have seen many people that finish their builds to find that their baffle changes dimensions with weather and seasons. I have decided to build my Translam as one solid piece, baffle and all. Here is my brace design, it was built in MS Paint and was intended to be printed on an 8.5x13 legal sheet of paper. Anybody that would like to take my brace design and run with it is welcome to it. I am planning on printing my template and using spray adhesive to make the template stay put during milling.

I will keep posting as my project progresses.

johngalt47 · 22nd July 2011, 06:10 PM

What drivers are you using?

Einric · 23rd July 2011, 12:10 AM

For now I am using a pair of Dayton RS100-8's and the RS28F tweeter. These will be mostly for movie use and the RS100s were extremely clear in a ported fullrange single driver configuration. I found that they were darn near flat from 400 to 5000 but I think they need a sealed enclosure to keep them safe in the low registers. Crossed at 100hz in fullrange configuration with 12db/O @10k they sounded WONDERFUL. Now they will get a tweeter and be in MTM configuration. I am contemplating using them with dual rear mounted 3" Passive Radiators instead of ports, this will help when I want to listen source direct analog.

Here is the ported sweep with 1/12 smoothing in fullrange mode as described above with only a single RS100-8.

Einric · 24th July 2011, 03:01 PM

OK, so here is my current thought.
I know that the RS100-8 sounds great ported by itself, I'm very happy with its performance.
I will have a .15cuft cavity Gross sealed with one RS100-8 and the tweeter.
Below that I will have a .25 cavity Gross ported with the other RS100-8.
I believe that this would give me an acoustic equivalent to 2.5 way sealed with extended bass for listening to source direct.
These changes will make my box slightly larger so there will be more work involved.

I am planning a Zobel compensated 2-way crossover at 5k 12db/O
or
3-way at 400 @ 12db/O & 5k @ 6db/O

22nd July 2011, 06:10 PM	#2
johngalt47 diyAudio Member Join Date: Mar 2004 Location: Texas	What drivers are you using? __________________ Any technology sufficiently advanced is indistinguishable from magic

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24th July 2011, 03:01 PM	#4
Einric diyAudio Member Join Date: Feb 2011 Location: Bozeman, MT	OK, so here is my current thought. I know that the RS100-8 sounds great ported by itself, I'm very happy with its performance. I will have a .15cuft cavity Gross sealed with one RS100-8 and the tweeter. Below that I will have a .25 cavity Gross ported with the other RS100-8. I believe that this would give me an acoustic equivalent to 2.5 way sealed with extended bass for listening to source direct. These changes will make my box slightly larger so there will be more work involved. I am planning a Zobel compensated 2-way crossover at 5k 12db/O or 3-way at 400 @ 12db/O & 5k @ 6db/O

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