Stentorian x3 & Sten II x4 Theater Build - Page 2 - AVS Forum
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Old 06-29-2013, 12:32 PM - Thread Starter
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I got two built and listened to them for a bit. I am far from anything resembling an audiophile, but they sound good to me. THey are definitely "brighter" than my old Bose speakers.. you can hear the symbols.

THey have good bass for such small drivers.

I think I may have an issue with one of the tweeters.. seems to make a weird noise at times. I'll do some tones with REW at some point and see if in fact there is an issue.

Some photos for your viewing pleasure. First, assembling the crossovers:

IMG_1723.JPG

IMG_1717.JPG

Everything soldered:

IMG_1727.JPG

IMG_1724.JPG

Adding 1lb of polyfil per driver. One pound is quite a bit, the box is definitely stuffed:

IMG_1722.JPG

Tim
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Old 06-29-2013, 12:52 PM
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The finish on that cabinet looks awesome. I don't think I have the patience to get that kind of shine. It's impressive.

The solder work looks clean too. I'll be doing some searching for myself, but if you have a video or how to website you think is worthwhile, I'd love a link.
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Old 06-29-2013, 01:57 PM - Thread Starter
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Originally Posted by HopefulFred View Post

The finish on that cabinet looks awesome. I don't think I have the patience to get that kind of shine. It's impressive.

The solder work looks clean too. I'll be doing some searching for myself, but if you have a video or how to website you think is worthwhile, I'd love a link.

Thanks, Fred!

Apparently I forgot to order the tweeters for the Sten II's.. as I just installed 3 tweeters and have none left :/

Just as well, I also ran out of solder. I'm used to soldering regular components. Soldering these giant audio components takes a boatload of solder.

As for soldering tutorials, I know there are plenty on youtube. Soldering these components takes close to no skill (no chance of overheating anything), so I think these few tips would be enough:

-clean the tip and tin the iron before you use it
-touch the iron to the workpiece and "bridge" the heat by applying a small bit of solder between the tip and workpiece
-apply the solder to the workpiece a little bit away from the tip and allow the heat to draw the solder towards the tip (this also helps prevent cold joints)

Also, I did away with my nice soldering station and went to the big-mammer-jammer Weller soldering gun. I think it's about 100 jiggawatts and made short work of the soldering.

Tim
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Old 06-29-2013, 02:22 PM
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I used this iron to solder my crossovers, works well but when you first turn it on it starts to burn off some coating on the iron.

http://www.parts-express.com/pe/showdetl.cfm?partnumber=374-100

 

When I first started to learn about soldering components I had watched these videos

http://tangentsoft.net/elec/movies/

 

I suggest you practice soldering a few pieces of wire together before doing any actual work on the crossovers. Its really not that difficult to solder wires together, hard to mess that up. Soldering small components on a circuit board has its challenges.

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Old 06-29-2013, 04:09 PM - Thread Starter
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Quote:
Originally Posted by Mrkazador View Post

I used this iron to solder my crossovers, works well but when you first turn it on it starts to burn off some coating on the iron.
http://www.parts-express.com/pe/showdetl.cfm?partnumber=374-100

When I first started to learn about soldering components I had watched these videos
http://tangentsoft.net/elec/movies/

I suggest you practice soldering a few pieces of wire together before doing any actual work on the crossovers. Its really not that difficult to solder wires together, hard to mess that up. Soldering small components on a circuit board has its challenges.

Definitely need some skill when soldering small components. I have a station similar to the one you have, it's a CSI 60w. had a Weller WES51 before the CSI, but it stopped working. The Weller station was really nice.. well it was mostly the pencil that was really nice.

Soldering the heavy wires was painful with the station at 60w. Possible, for sure.

The Weller gun at 300w was much faster biggrin.gif
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Old 07-09-2013, 06:43 PM - Thread Starter
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I got all the filler done on the speakers, shot the first coat of black and got it blocked reasonably flat. Then it was time to cut the openings for the crossover recesses. I built a quick and dirty router template to cut the openings. Well worth the 10 minutes:

IMG_1753.JPG


Then I decided I want to cover the recess with a piece of 1/4" HDF, so I used the rabbeting bit:

IMG_1752.JPG


These were a LOT more work then I had anticipated... Good to be seeing a light at the end of the tunnel. The tweeters were on sale at PE, so that was a nice surprise.

I'm planning nickel binding posts right below the crossover cutout.

Tim
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Old 07-10-2013, 06:18 AM
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Nice work on the boxes so far. Can't wait to see what you are going to do for the crossover cover.

Chris

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Old 07-10-2013, 07:30 AM
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Is there an easy way to cut the corners of the cover to match the radius in the corners?

Dude, are you made of leprechauns? Cause that was awesome!

The Plains Theater Has Begun
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Old 07-10-2013, 09:59 AM - Thread Starter
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Quote:
Originally Posted by J_P_A View Post

Is there an easy way to cut the corners of the cover to match the radius in the corners?

You use the cutout as a template, then follow it with a bushing+1/4" spiral bit. Router wizzes can probably tell you the size of the bushing off the top of their head.. but I would just figure it out by eye. 1"? ..for a 3/8" wide rabbet.. since the cutout is 1/4" narrower than the opening due to the spiral bit.. so 1/4"+3/8" for the width of the rabbet.. that's 5/8".. I want it a little smaller (1/8"), so 1/2 wider per side.. which would be a 1" bushing... I think..

Or cut a template 1" wider/longer and use a 1/2" bearing bit.

Tim
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Old 07-22-2013, 06:59 AM
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Very impressive craftsmanship Tim.

That should be a crazy dynamic front stage!!!
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Old 07-22-2013, 05:49 PM - Thread Starter
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Originally Posted by NicksHitachi View Post

Very impressive craftsmanship Tim.

That should be a crazy dynamic front stage!!!

Thanks Nick. Shot two more coats of lacquer on them this weekend. Hopefully have them polished next weekend. Wish I could say I'm looking forward to wiring them.. but after 4 sten ii's and the subs... not so much.

Tim
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Old 08-07-2013, 05:20 AM - Thread Starter
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Finished wiring up the LCR Sentorians.

I finished the crossover layout late one night:

IMG_1783.JPG



The next morning I came to my senses. Take 2:

IMG_1784.JPG



The local hardware store had nylon standoffs that I used to keep the crossover boards raised slightly above the cabinet:

IMG_1794.JPG



Wiring up the drivers (went through about 200 feet of wire between the Sten and Sten II's):

IMG_1787.JPG



I used the faston connectors but also gave them a touch of solder.

Drivers are held in with only 2 screws while I wait for more screws to arrive from PE. 60 screws per cabinet!

Tim
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Old 08-07-2013, 06:22 AM
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If theyre all wired together and soldered how you gonna mount em? wont the wires be stuck on outside?

Hopefully you flipped them and ran wires inside before hooking up.....

Looks very nice! The copper is one cost in speaker building that i always overlook until im pulling off all that wire which costs $$$$$
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Old 08-07-2013, 06:46 AM - Thread Starter
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Quote:
Originally Posted by NicksHitachi View Post

If theyre all wired together and soldered how you gonna mount em? wont the wires be stuck on outside?

Hopefully you flipped them and ran wires inside before hooking up.....

Looks very nice! The copper is one cost in speaker building that i always overlook until im pulling off all that wire which costs $$$$$

The wires are all looped through the openings. Give me a little credit, man! biggrin.gif

Just flipped em over and everything is temp secured. Still have to drill the 3/8" aperiodic vents for the bottom two chambers.

Tim
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Old 08-07-2013, 07:21 AM
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LOL, ive done worse!
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Old 08-07-2013, 07:23 AM
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Yeah, when I read Nicks' first post I thought, "wow, that sounds like something I'd do!"

EDIT: The crossovers look good, BTW. What is that you used to mount the components to?

Dude, are you made of leprechauns? Cause that was awesome!

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Old 08-07-2013, 02:48 PM - Thread Starter
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Quote:
Originally Posted by NicksHitachi View Post

LOL, ive done worse!

You and me both!
Quote:
Originally Posted by J_P_A View Post

Yeah, when I read Nicks' first post I thought, "wow, that sounds like something I'd do!"

EDIT: The crossovers look good, BTW. What is that you used to mount the components to?

Thanks! That is 1/4" masonite, aka HDF. I have little pieces left over from the raised panels I made, so it was a perfect use for the scraps. I painted them black with a rattle can.

Screws arrived... I'm going to go finish em up. I want to measure them, but it's looking like rain outside.

Tim
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Old 08-08-2013, 05:06 AM - Thread Starter
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Originally Posted by NicksHitachi View Post

LOL, ive done worse!

You mean like wiring all of the woofers in parallel instead of each pair in series? Like I did?

I measured the response and had a WTF moment. Closer examination reveals I am an idiot.

So many screws..

Tim
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Old 08-08-2013, 05:26 AM
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At least no permanent damage....

Pride regenerates......
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Old 08-08-2013, 06:48 AM - Thread Starter
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At least no permanent damage....

Pride regenerates......

True that. Got two rewired. Manage to break one of those teeny tabs off but nothing a little solder didn't cure.

Haven't measured them yet, but they definitely sound better when you follow the design smile.gif I thought something was off, but like your reversed polarity I figured that's just the way it was. Thank goodness for REW!

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Old 08-10-2013, 04:41 PM - Thread Starter
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I had to make some stands to elevate the Stentorians behind my screen. Full-on DIY made from scraps I was going to throw away:

IMG_1795.JPG

I didn't have a piece big enough to span the entire middle smile.gif


Got a little dado action:

IMG_1796.JPG

Fingers crossed I can make some sound in the theater tomorrow!

Tim
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Old 08-10-2013, 04:54 PM
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Awesome man! I always thought Curts Stentorian was an awesome choice for home theater, i hope to hear a set one day!
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Old 08-17-2013, 01:26 PM
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You never posted an update for us ? (I saw some in your theater thread biggrin.gif )

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Old 08-17-2013, 02:58 PM - Thread Starter
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You never posted an update for us ? (I saw some in your theater thread biggrin.gif )

Sorry, got caught up in the theater thread and never looked back.

Got them installed. They sound great. All those Aura drivers definitely pack a punch.

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