New Micromarty build - AVS Forum | Home Theater Discussions And Reviews
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post #1 of 19 Old 08-09-2017, 12:00 PM - Thread Starter
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Smile New Micromarty build - Now finished!

So after lots of reading and lots of great advice I have begun my build and will update this thread with pictures and things along the way - all from the point of a complete wood working novice.. basically this is my first time handling a router and skillsaw for other purposes than cutting a few boards for the a shed.

In any case I settled for the Dayton rss390ho in a micro marty powered by an Inuke 3000 DSP.

First step was cutting the MDF board. - I cut the first two cuts and thought well that dust ain't that big of a deal, so I continued cutting without a mask... I'll tell you now if you're a noob like me and get that same idea... STOP.. and grab that mask!

After a couple of hours cutting I had all the pieces. It wasn't too hard, I found a youtube video of "how to create a guide" and it went rather well.


I had to try a dry fit


I thought I was pretty OK with my cuts, measuring before and after, but I can see I have quite a bit of sanding to do

Tomorrow I should recieve the Dayton unit, so looking forward to that very much.
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Last edited by Kimjor; 09-30-2017 at 07:43 AM.
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post #2 of 19 Old 08-10-2017, 02:09 AM
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cool...no going back now. :-)
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Listen. It's All Good.
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post #3 of 19 Old 08-10-2017, 06:57 AM - Thread Starter
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Note sure the wife quite understand what it's for.. "It's just a little bass box in the corner, don't worry about it"

I got the Dayton unit today, and I think it's good I settled for the 15" and not the 18".


Also began glueing the bottom and first side together.
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post #4 of 19 Old 08-12-2017, 09:51 AM
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Look forward to the progress. "Just a little box in the corner." I've been trying to find an appropriate analogy that would make sense to my wife for why we "need" a sub capable of <20 hz to get the full theater experience but haven't come up with a good one. Maybe I'll try a BLT without the bacon....
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post #5 of 19 Old 08-13-2017, 12:05 AM - Thread Starter
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Hehe my wife saw the 15" Dayton and I believe she's beginning to understand what is happening.. not sure shes 100% behind the idea, but no going back now :-)

Got the back and second side glued together all fitting nicely:


However.... I must have been off by a couple of mm when doing some of the cuts, because everything from here is not quite fitting..
Here is the bottom port as you can see it's just a tiny bit too long, so I'll have to go take a quick stab at it with the skillsaw again. Thankfully it's too large and not too small though :-)
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post #6 of 19 Old 08-15-2017, 08:03 AM - Thread Starter
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Got a bit more finished today. - almost looking like a box now :-)

Unfortunately somethings not quite aligned, so i'll have to try and spackle/sand and see if I can't fix that.
Also glued the baffles together




Next up will be trying to make the cut-out and recess the speaker.
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Last edited by Kimjor; 08-19-2017 at 03:01 AM.
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post #7 of 19 Old 08-19-2017, 02:54 AM - Thread Starter
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After a couple of hours of sanding I had the box more or less finished, so for the first time I began looking into how to use the the router.. Turns out there is a flush trim bit that would have saved me quite some time sanding lol :-)

Since it was my first time using a router I did a couple of tries with som spare wood pieces. turns out routing is actually not that difficult :-)


Next was getting the whole box assembled and sanded, so it's ready for priming and painting.



The wife wants it white - not high gloss or anything thankfully, but I am shooting for a fairly nice flat finish. We will see how it goes :-)
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post #8 of 19 Old 08-27-2017, 05:05 PM
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Dude update?!?!
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post #9 of 19 Old 08-28-2017, 12:11 AM - Thread Starter
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:-) Not so much news, have begun priming:


So far I have primed, sanded, primed and am currently sanding. It's getting there. Although I still think the seams/joints show through.. I hope the paint will hide it a bit more.
But to be honest it's turning out better than i expected - and much better than my wife feared haha
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post #10 of 19 Old 08-28-2017, 12:39 AM
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Id mask off where the sub mounts. wouldnt want any air leaks.

but looks great! My one marty has an odd spot where it doesnt quite line up pretty much like your pic as well. I havent finished my boxes yet, just raw mdf. maybe in the spring tho.
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post #11 of 19 Old 09-26-2017, 12:39 PM - Thread Starter
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So time flies and summer was kinda crap, so had to forego the spray painting and settle for indoors rolling.

I gave it quite a few layers but never really got rid of the orange peel texture, even when sanding between coats, it got back afterwards..
So I finally just applied a bunch of coats and have now wet sanded it with 600grit and it's really nice now



BUT!!!! There's always that damn but!
The paint looks nice, feels nice, but it needs something on top because it scratches soo easy. Just wiping my hand across the ring on my finger makes a small scratch all across the surface. (I should probably just have left it with the orange peel feel.. it's just a damn box in a corner, but now it irritates me

So I could use some advice on how to finish it from here. I've seen all the high gloss guides and to be honest having to go through 6-7 more coats and wet sanding is not really what I was aiming for.
Any ideas as to 1-2 clear coats of lacker or something? Polyurathene or what ever it is called?
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post #12 of 19 Old 09-26-2017, 05:17 PM
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Looks great, I would go with a few coats of flat clear if its scratching to easy. Nice work with the router!
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post #13 of 19 Old 09-26-2017, 10:09 PM
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I'm usually not a fan of white cabs , but I have to say that is looking sexy! I started a MicroMarty build last year because I wanted a project during some downtime , was going to either do Duratex or maybe Army OD green , but seeing yours I may look into white if I can get it placed where reflection won't mess with my projector . Congrats and enjoy!
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post #14 of 19 Old 09-26-2017, 10:56 PM
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Epoxy coating?
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post #15 of 19 Old 09-27-2017, 09:08 AM
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Go with a satin clear, it should look really nice on that!
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post #16 of 19 Old 09-28-2017, 06:37 AM - Thread Starter
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So, I sprayed two cans of satin/flat clear.
-Note to other noobs, do NOT spray inside! even with doors closed and window opened the whole house still stinks - let's just say my wife still doesn't fully appreciate what I'm doing here haha.

Anyway gave it a coupld of more coats today (Outside...), still looks good, but not really sure it did anything.. tried to scratch a bit on the backside all the way in the bottom and to be honest it still scratches a bit easy..

Oh well, i'll let it dry a bit more and probably just finish the build this weekend, can't wait any longer. Guess I can always sand/paint again next year when I convince my wife that we need a second sub
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post #17 of 19 Old 09-28-2017, 08:10 AM
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Spray paint, in my experience anyway, can take a long time to cure and get hard vs just being dry enough to handle.
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post #18 of 19 Old 09-30-2017, 07:02 AM - Thread Starter
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And we have lift off!!

Fired everything up - definitely couldn't live with the fan on that Inuke, thankfully I have quite a bit of PC watercooling things laying around and also had a nice 140mm fan with low sound/high static pressure. The bigest problem was cutting through the top of the Inuke - damn my cup drill did not want to go through!



Next up was moving the sub into position - looks good



Did the high pass filter, set the Inuke to bridged and did a quick test on the Reciever and set my fronts to "Small" etc. Sub was found perfect and i started playing music... Hmmm no sound from sub! - spent the next hour trying to figure out why, turns out in Yamaha recievers you need to set the fronts to "Large" and enable something called "Extra bass".

Cranked it up a bit and heard some strange noise *Fear starts setting in*.. Runs to sub, thank good it's not from there.. turns out it's the glasses in the other rooms thats vibrating :-)

Now I just need to get a hold of a mic so I can run REW and get it dialed in as good as I can with just the one sub.
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post #19 of 19 Old 09-30-2017, 08:39 AM
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Turned out great!
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