Alpha Minion Veneer Build - AVS Forum
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post #1 of 39 Old 11-28-2013, 04:04 PM - Thread Starter
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Hey
Well after my Marty sub turned out so well I decided to make a pair of Diysoundgroup speakers. These minions will be my new rear speakers. Because this is my first time veneering with speakers I decided to start with a smaller one.

I already had 3/4 " mdf in my shop so I used it. I had to adjust a couple of measurements since the plans call for half inch mdf. The inside is slightly smaller then .6 cuft. In half an hour I had the boxes together
u2udyvyj.jpg

It helps to have this power tool in your shop
6amevazu.jpg

The belt sander easily gets rid of minor imperfections.
4y9y5esa.jpg

Then its like this
ma7yze9a.jpg

You have to be skilled with the sander because it can put grooves in the wood if your not careful. Made a couple of braces and glued them in.
e6ymuny9.jpg
I ordered the speakers eight days ago but there still processing. Hopefully they arrive next week. I have some veneering ahead of me so that will keep me busy.

Going to use paper backed purpleheart 10mil. Will paint the front baffle black. I don't like the look of duratex in my living room. If I run into any problems I know the great community here will help me out. smile.gif
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post #2 of 39 Old 11-28-2013, 04:14 PM
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They're packaged, they just didn't get them to FedEx in time. The Anarchy woofers came in and things got really busy.

You should probably wait on doing any more work until you can test fit the baffles.
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post #3 of 39 Old 11-28-2013, 04:31 PM
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Oh I can't wait to see how this build goes!! Hopefully you'll bring them over to my place once you're finished to compare with the JTR speakers.
I'm thinking I'm going to build some surrounds to go along with my 228HT's.

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post #4 of 39 Old 11-28-2013, 06:04 PM - Thread Starter
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Originally Posted by Erich H View Post

They're packaged, they just didn't get them to FedEx in time. The Anarchy woofers came in and things got really busy.

You should probably wait on doing any more work until you can test fit the baffles.

Sweet , I cut them exactly to the required measurement with a tolerance of 1/64". If the baffle is more then a 1/32" out I would be disappointed. If it ended up too small I would just make my own. The veneer will be the tricky part since I haven't done much before.

Jbrown when you popping over to my shop ? biggrin.gif
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post #5 of 39 Old 11-28-2013, 08:29 PM
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Originally Posted by chalugadp View Post

Sweet , I cut them exactly to the required measurement with a tolerance of 1/64". If the baffle is more then a 1/32" out I would be disappointed. If it ended up too small I would just make my own. The veneer will be the tricky part since I haven't done much before.

Jbrown when you popping over to my shop ? biggrin.gif

How about this Saturday? I need to sand the three speaker stands that I built and I was really hoping to router the edges to match my JTR's.

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post #6 of 39 Old 11-28-2013, 08:48 PM - Thread Starter
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Originally Posted by jbrown15 View Post

Quote:
Originally Posted by chalugadp View Post

Sweet , I cut them exactly to the required measurement with a tolerance of 1/64". If the baffle is more then a 1/32" out I would be disappointed. If it ended up too small I would just make my own. The veneer will be the tricky part since I haven't done much before.

Jbrown when you popping over to my shop ? biggrin.gif

How about this Saturday? I need to sand the three speaker stands that I built and I was really hoping to router the edges to match my JTR's.
I'll pm you tomorrow and let you know:p
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post #7 of 39 Old 11-30-2013, 02:11 AM - Thread Starter
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Just wondering what the roundover size is for the front baffle ? I am assuming its the same for all diysoundgroup baffles. Looks like 1/2" from the picture .
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post #8 of 39 Old 11-30-2013, 06:25 AM
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I like the minion kit. Looking forward to seeing this one done.

The round over probably isn't critical. Bigger = better though. But I'd go with the size that looks good.
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post #9 of 39 Old 11-30-2013, 01:55 PM - Thread Starter
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Had jbrown over to my shop to work on his speaker stands and I painted the back and bottom of my boxes. Was my first time meeting someone from this forum , and it was pretty cool. Was nice to talk to someone about diy and home theater.

Showed him how to use a laminate router and belt sander. Veneering is a lot easier then I thought it would be. Now waiting for my purpleheart veneer to come in the mail.

Got the email you love from Erich , order shipped ! Hoping by next weekend to have these bad boys hooked up biggrin.gif
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post #10 of 39 Old 11-30-2013, 08:44 PM
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Originally Posted by chalugadp View Post

Had jbrown over to my shop to work on his speaker stands and I painted the back and bottom of my boxes. Was my first time meeting someone from this forum , and it was pretty cool. Was nice to talk to someone about diy and home theater.

Showed him how to use a laminate router and belt sander. Veneering is a lot easier then I thought it would be. Now waiting for my purpleheart veneer to come in the mail.

Got the email you love from Erich , order shipped ! Hoping by next weekend to have these bad boys hooked up biggrin.gif

Thanks again for allowing me to come over and use your awesome shop!! Now I really can't wait to start a DIY project with dual sealed enclosures and FTW-21 drivers!

Haha I am never using a crappy palm sander again, the belt sander is where its at!..lol

My Gear:

JTR Noesis 228HT (LCR)
Axiom Audio QS8 surrounds
Sherbourn PA 7-350
Pioneer VSX-21TXH
JVC RS45
Falcon Screens FVHD105
Dual PSA XS30's (gone but not forgotten)
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post #11 of 39 Old 12-09-2013, 09:29 PM - Thread Starter
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My minion parts and my veneer were ready for pickup. next post I will go into detail
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post #12 of 39 Old 12-09-2013, 09:40 PM - Thread Starter
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Opened the speaker parts and man there solid
jepa9ute.jpg

The baffles were the right size but one of them is missing a roundover on one side.
eqadudug.jpg
Not.a huge.deal but kind of zapped the excitement of opening the parts. I will be able to fix it in 10 minutes .
Put the compression driver together and what a slick system with the nut.

The only question I have is hooking up the crossover . The woofer and tweeter are easy
7ava2eru.jpg
Do I go from the binding post of the speaker and run a wire from the positive to both the positive of the woofer and a wire from the binding post positive to the positive of the input of the tweeter ?
esarary7.jpg
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post #13 of 39 Old 12-09-2013, 09:44 PM - Thread Starter
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Will post pics of the veneering tomorrow . It was easier then I thought it would be.
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post #14 of 39 Old 12-09-2013, 11:03 PM
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Quote:
The belt sander easily gets rid of minor imperfections.

As dose the veneer smile.gif Great project though cool.gif
Quote:
Will post pics of the veneering tomorrow . It was easier then I thought it would be.

Well you know what they say! If steve can do it anyb... tongue.gif
Quote:
jb Thanks again for allowing me to come over and use your awesome shop!! Now I really can't wait to start a DIY project with dual sealed enclosures and FTW-21 drivers!

Haha I am never using a crappy palm sander again, the belt sander is where its at!..lol

Hey jb.. Now it all makes sense. You have to build them yourself though. This is very cool!

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post #15 of 39 Old 12-09-2013, 11:29 PM
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Hey jb.. Now it all makes sense. You have to build them yourself though. This is very cool!

Haha I wouldn't have it any other way, I've built the entire theatre room all by myself (rear riser, front stage/false wall, all of the wood work and columns, and speaker stands) so why stop there!...lol

I have to admit it was really nice of chalugadp to offer the full use of the awesome wood shop he has access too. That's really going to help me when I'm ready to build the dual FTW-21's that I want too.

My Gear:

JTR Noesis 228HT (LCR)
Axiom Audio QS8 surrounds
Sherbourn PA 7-350
Pioneer VSX-21TXH
JVC RS45
Falcon Screens FVHD105
Dual PSA XS30's (gone but not forgotten)
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post #16 of 39 Old 12-10-2013, 04:25 AM
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Originally Posted by jbrown15 View Post

Haha I wouldn't have it any other way, I've built the entire theatre room all by myself (rear riser, front stage/false wall, all of the wood work and columns, and speaker stands) so why stop there!...lol

I have to admit it was really nice of chalugadp to offer the full use of the awesome wood shop he has access too. That's really going to help me when I'm ready to build the dual FTW-21's that I want too.

Exactly! you’re on a roll (gotcha!) and with having access to a shop like that, the sky’s the limit! I could see me cranking up that sander and coming up with a 1/16” thick enclosure instead of 3/4” if I weren't carful though. smile.gif In all seriousness I really look forward to your dual FTW-21 build jb since I know of some of the processes and calculations that brought you to that point. cool.gif

EDIT> chalugadp does that sander start on it’s own power or do you need to put one of those torque-drill things to it like a dragster to fire it up. http://www.youtube.com/watch?v=UeX9mPoC8j0

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post #17 of 39 Old 12-10-2013, 02:00 PM - Thread Starter
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you should see when we have belt sander races in my shop eek.gif
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post #18 of 39 Old 12-10-2013, 03:03 PM - Thread Starter
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So I spent about 90 minutes last night glueing down the veneer. I went with Purpleheart which was quite pricey, but worth it I think. I ordered it from here http://www.woodworkerssource.com/index.php and i was quite happy with the quality. No flaws, and the paper back is very thin which is good. After the three sides were done I wasn't happy with the seam so i decided to put an oak inlay on the corner.


Then i broke out the old block plane to get it flush


and finally added some watco danish oil


I still have to paint the front baffle and attach and then hook up the speaker. Should be ready tomorrow.
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post #19 of 39 Old 12-10-2013, 05:48 PM
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very very nice work!!!
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post #20 of 39 Old 12-10-2013, 07:37 PM - Thread Starter
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very very nice work!!!
Thanks ,
I sure hope they sound great !
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post #21 of 39 Old 12-10-2013, 08:26 PM
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Do I go from the binding post of the speaker and run a wire from the positive to both the positive of the woofer and a wire from the binding post positive to the positive of the input of the tweeter ?

I was worried one crossover board for both drivers would have been too large to fit in that enclosure so I had to split it up. You would connect wire from the input terminals on both boards to the binding posts (- to -, + to + for both boards). I think you are thinking too hard smile.gif

Purple Heart veneer huh? I recently stripped some nasty yellow paint off an old lid from an upright piano (which my grandfather must had salvaged decades ago, he liked collecting large solid pieces of wood like that) The core was solid oak ~40lbs of it but the veneer that was under the paint looked beautiful after I ran it through my planer and looks almost identical to what you are using. Those will look fantastic when you're finished.
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post #22 of 39 Old 12-10-2013, 08:32 PM - Thread Starter
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I want it to work right the first time I hook it up. I get frustrated fast. I like your logo on the bottom of the crossover . I wanted a wood that would go well with black baffle. I will finish it tomorrow and take some final pics.
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post #23 of 39 Old 12-10-2013, 09:11 PM
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Originally Posted by chalugadp View Post

Opened the speaker parts and man there solid
jepa9ute.jpg

The baffles were the right size but one of them is missing a roundover on one side.
eqadudug.jpg
Not.a huge.deal but kind of zapped the excitement of opening the parts. I will be able to fix it in 10 minutes .
Put the compression driver together and what a slick system with the nut.

The only question I have is hooking up the crossover . The woofer and tweeter are easy
7ava2eru.jpg
Do I go from the binding post of the speaker and run a wire from the positive to both the positive of the woofer and a wire from the binding post positive to the positive of the input of the tweeter ?
esarary7.jpg

Wow your EOS waveguide is not the glossy plastic. Did you specifically ask for a matte finish? I have a set of minions as well, and the waveguide I received was the glossy one, didn't know a matte one was available.
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post #24 of 39 Old 12-10-2013, 09:37 PM - Thread Starter
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Nope I didn't ask for matte. I don't remember having a choice but matte works ok. How are you enjoying your minions ?
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post #25 of 39 Old 12-11-2013, 02:36 PM - Thread Starter
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Finally finished
adugy6u8.jpg

ypavu4y3.jpg

e7ejy6uz.jpg
e7esybuj.jpg

I will post a review of the sound quality in a.couple days smile.gif
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post #26 of 39 Old 12-11-2013, 03:04 PM
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Great looking! I've always liked the look of purple heart, but never worked with it. Fantastic work!
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post #27 of 39 Old 12-11-2013, 03:57 PM - Thread Starter
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Great looking! I've always liked the look of purple heart, but never worked with it. Fantastic work!
Thanks tux ,
Got them home , plugged them in and ....
They worked. Letting them break in a bit , do some shopping and then a good listening session tonight.
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post #28 of 39 Old 12-11-2013, 05:20 PM
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Very nice job chal, looks great! Say do you mind sharing what you or how you went about digging out the corners for your inlay?

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post #29 of 39 Old 12-11-2013, 05:30 PM - Thread Starter
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Very nice job chal, looks great! Say do you mind sharing what you or how you went about digging out the corners for your inlay?


Thanks ,
To do the corners I laminated the three pieces and trimmed them flush. Then I put the whole speaker through the tablesaw and set the fence for a 1/4" by 1/4" rabbet. Next I cut the oak on the bandsaw so it was a couple of millimeters bigger and then handplaned down close and used orbital sander to get flush.

The hardest part of the build was not having the front baffle when I built the box. Next time I will build the box 4-5 mm less then the size of the front baffle. Then I will route it flush.

Overall a couple of small mistakes but turned out better then I hoped.

Initial listening impression watching the tomorrow people with my family. My wife has hearing aids and often needs subtitles. After ten minutes watching she said she could hear the words more clear. eek.gif
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post #30 of 39 Old 12-11-2013, 05:50 PM
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Thanks tux ,
Got them home , plugged them in and ....
They worked. Letting them break in a bit , do some shopping and then a good listening session tonight.

Donny they look great! The veneer turned out really nice! You're definitely going to have to bring them over to compare how they sound to my JTR's. smile.gif

I really want to hear them.

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Axiom Audio QS8 surrounds
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Pioneer VSX-21TXH
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Falcon Screens FVHD105
Dual PSA XS30's (gone but not forgotten)
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