Deadhorse Build Thread

[greywarden]

I've already documented my Test Box build for this speaker HERE (http://techtalk.parts-express.com/showthread.php?t=229846) so you can flip through that if you want.

This thread is where I'm going to document my initial crossover designs (with just the parts I have on hand) and later on with measurements and a mostly unlimited budget (right now, I'm willing to throw as much money as I need to to finish these SoB's) for crossover parts.

Here's what I rigged up today, I've listened to it for a few minutes and it sounds alright.

http://i619.photobucket.com/albums/tt271/johnchanning1/BestSoFar.jpg

http://i619.photobucket.com/albums/tt271/johnchanning1/BestSoFarGraphs.jpg

None of the parts got hot, the amp got warm (not uncommonly warm), and I had it turned up about as loud as I could.

Woofer's crossover is right around 3.1kHz BW4 and tweeter's is 4.2kHz BW4 with a [rather] generous BBC dip (not intentional, just happened, at least I admit it)

I'll be ordering my measuring equipment on the 15th and then I'll start pulling my hair out :D

http://techtalk.parts-express.com//attachment.php?attachmentid=21204&d=1329089277

http://techtalk.parts-express.com//attachment.php?attachmentid=21205&d=1329089286

[joeybutts]

WOOT WOOT! Can't wait to see how your adventure turns out!

[Sidi]

legos?

[donradick]

Nice box of crossover parts. Mine used to look something like that, then I got tired of searching for a particular value, and got medium size food storage containers and labeled them: RES .5 - 2.0, CAP 1 - 4, etc. Helps my sanity greatly, and I can review the containers to replenish my spares stocks when I make a big PE order.

My eyes started to cross, and I felt dizzy looking at that woofer crossover. wow - lots of parts! Expect everything to change when you can measure actual FR - sure did for me.

[greywarden]

legos?

Hell yeah LEGOS :D

[greywarden]

Nice box of crossover parts. Mine used to look something like that, then I got tired of searching for a particular value, and got medium size food storage containers and labeled them: RES .5 - 2.0, CAP 1 - 4, etc. Helps my sanity greatly, and I can review the containers to replenish my spares stocks when I make a big PE order.

My eyes started to cross, and I felt dizzy looking at that woofer crossover. wow - lots of parts! Expect everything to change when you can measure actual FR - sure did for me.

Yeah they were just in a box, lol. I sorted them out and made a list before I started simming this morning.

It took me like 30-45min just to get the woofer parts arranged, haha. If I change the value on any of those parts, everything goes crazy, so I know they're all required :cool:

[cjd]

I hope you have the appropriate Michael Jackson song on tap to celebrate completion of this particular project... ;)

That's some funky crossover happenings.

[greywarden]

I hope you have the appropriate Michael Jackson song on tap to celebrate completion of this particular project... ;)

That's some funky crossover happenings.

Which song??

I build my crossovers like I build my LEGO space ships, just stick random pieces in it, until it looks right :o

[donradick]

Yeah they were just in a box, lol. I sorted them out and made a list before I started simming this morning.

It took me like 30-45min just to get the woofer parts arranged, haha. If I change the value on any of those parts, everything goes crazy, so I know they're all required :cool:

Ok, next question?
How are you connecting your test crossover components?
12 inch alligator clip test leads, wire nuts, alligator clips ?

[cjd]

Which song??

What is it you do with a dead horse?

Beat It!

:D

[donradick]

What is it you do with a dead horse?

Beat It!

:D

Thanks a lot, now all I have in my head is Wierd Al Yankovic singing his parody "Eat It" :D.

[greywarden]

What is it you do with a dead horse?

Beat It!

:D

I've been beating this thing for almost a year and a half, haha.

[greywarden]

Ok, next question?
How are you connecting your test crossover components?
12 inch alligator clip test leads, wire nuts, alligator clips ?

I got (2) sets of gator clip test leads on amazon for like $2-3 and stuck them onto an order, super duper handy. I use the red/black for +/-, the green for -, and the yellow for +, and the white to connect series parts, or fill in when I run out of others, I used them all for this one, haha

[killa]

I've been beating this thing for almost a year and a half, haha.

I think I heard some wind lol:D

[johnnyrichards]

I got (2) sets of gator clip test leads on amazon for like $2-3 and stuck them onto an order, super duper handy. I use the red/black for +/-, the green for -, and the yellow for +, and the white to connect series parts, or fill in when I run out of others, I used them all for this one, haha

I hope they are better than the ones PE sells. I curse those everytime I prototype a crossover :)

I would be very curious to see how close your measurements come to your sims.

Feels good to get crackin', don't it?

[greywarden]

I hope they are better than the ones PE sells. I curse those everytime I prototype a crossover :)

I would be very curious to see how close your measurements come to your sims.

Feels good to get crackin', don't it?

It does! They're probably waaayyyy off, becuase there's no information whatsoever about this tweeter anymore except what I can remember off the top of my head. So I looked up Tymphany/Vifa tweeters and found one that both looked similar, was 4ohm, and had the closest Fs.

I guess they are better, I don't have any issues with them, except the rubber covers on the clips make it difficult to clip them sometimes, but have probably saved my speaker and amp on more than one occasion, haha.

[greywarden]

Ok so I finally pulled the trigger on some measurement gear!

Here's what I got:

20ft Blue (brand) Mic Cable
Sturdy Speaker Stands (becuase the wood one I made is scary )
Blue Icicle
Tripod Mic Boom Stand + Mic Clip

and....

Cross Spectrum Basic Dayton Mic

and.... (drumroll please)

The last Dayton WT3 on ebay :cool:

[dcibel]

That's quite the transfer function on that woofer! peerless drivers are generally quite smooth response, so I am a bit confused by that. I'm sure the tweeter response could be a lot smoother as well, the transfer function is designed for the rising high frequency response. If nothing else, a series inductor can help that out.

[LouC]

I've been beating this thing for almost a year and a half, haha.

And it hasn't gone off yet? :p

[greywarden]

And it hasn't gone off yet? :p

Oh **** hahaha. Good one, lol.

[greywarden]

That's quite the transfer function on that woofer! peerless drivers are generally quite smooth response, so I am a bit confused by that. I'm sure the tweeter response could be a lot smoother as well, the transfer function is designed for the rising high frequency response. If nothing else, a series inductor can help that out.

Well that's full bsc treatment since it's going to be away from the walls. And there's about a 6-8dB breakup spike, too, but that was dealt with by the nice 4th order slope.

I was working on a really good one last night where I got the woofer completely flat to 2600Hz, I mean like Scanspeak flat, haha. and coincidentally, the tweeter from 8kHz up crazy flat and 20dB down at Fs, but a huge dip in between the two.

Then my computer restarted after I went to bed, and I forgot to save it. :rolleyes:

I really should just wait for my new equipment to come in and quit wasting my time with a half-assed sim.

[johnnyrichards]

Not a waste of time, pure sims are of limited practical use its true, but they allow you to experiment with a ton of alignments without spending a dime. When you are staring at your measured responses, a peak will show up and you will be very confident that you know a topology to tame it.

[greywarden]

Not a waste of time, pure sims are of limited practical use its true, but they allow you to experiment with a ton of alignments without spending a dime. When you are staring at your measured responses, a peak will show up and you will be very confident that you know a topology to tame it.

Well yes that's true, but I'm using the frd and zma from a similar tweeter, not THE tweeter, becuase the only information that exists for my tweeter is what I can remember, PE even closed the page for the driver. So yes, my sims are pretty much useless, but a sim with real measurements from, say Zaph's site, are good.

[greywarden]

Alright, I got my speaker stands (they need larger bases/platforms - MDF to the rescue), mic boom stand, and WT3 in so far.

I tested the tweeter's impedance and it is 4 ohm nominal, but it goes as low as 3.1R and there's 2 spikes in the impedance, let me post a pic:

http://techtalk.parts-express.com//attachment.php?attachmentid=21348&d=1329604821

I added it into PCD with the crossover I'm currently using - the FRD file is still not the actual tweeter's response, just a Vifa that looked similar, but the 5dB "BBC dip" changed to maybe a 2-3dB dip.

I'm currently testing all the crossover parts and entering the actual meeasurements I'm getting from the WT3, I'll post a screenshot of the outcome.

[greywarden]

Alright, I've tested my woofer and tweeter, in-box, and MY BOX IS SEALED :D

http://techtalk.parts-express.com//attachment.php?attachmentid=21349&d=1329609486

[timk]

Do you have plans for those stands?:D

[greywarden]

Do you have plans for those stands?:D

Yep, go buy (3) 3/4" dowels, grab 2 or 3 scraps of MDF and stack them, drill 3/4" holes in them and glue the dowels into the holes. I had to clamp one of the dowels at a right angle.

Took about 30minutes including glue drying time :D

[greywarden]

This is what I'm listening to and it sounds awesome! All that's missing is actual in-box frequency measurements from both drivers. :)

http://i619.photobucket.com/albums/tt271/johnchanning1/DeadhorseFRGraph2-16-12.png

[greywarden]

Measurements! Real ones!

I did this really quick, I'm driving VIPs around tomorrow, so I have to go to bed soon, but here's what I got, not too shabby, that dip gets bigger with the tweeter's polarity reversed.

http://techtalk.parts-express.com//attachment.php?attachmentid=21409&d=1329979455

[johnnyrichards]

Looks like your sims were withing 3 or 4 db, good job from going blind :)

[donradick]

Remarkably flat, dude - wow! Not bad at all for your first design, first sim, and first measurements.

[greywarden]

Remarkably flat, dude - wow! Not bad at all for your first design, first sim, and first measurements.

Yep, I was both suprised and excited. I'll work on it some more this weekend.


Looks like your sims were withing 3 or 4 db, good job from going blind :)

I was really suprised, I even used a tweeter that wasn't my tweeter, haha! I'll try to swap out some parts and work that dip out, then it'll pretty much be ready to go :cool:

[greywarden]

Had a sh!tty day at work, so I decided to waste the rest of my day kicking this deadhorse some more :D

REAL MEASUREMENTS - UNSMOOTHED

This crossover is pretty much finished.

http://techtalk.parts-express.com//attachment.php?attachmentid=21425&d=1330058585

[donradick]

I just love it when I can measure a deep reverse null. So.... How do they sound? Smooth? Solid center image?

[greywarden]

Well, I have to order a few crossover parts. I have about half of the parts required for that crossover. Currently, there's a 5dB dip that starts around 4kHz to 6kHz and the tweeter peaks at 12kHz or so.

It sounded ok to me, but that shows my newb-ishness :o

I also finally got my bronco running again, so I'll be able to buy and cut some wood soon :cool:

[EDIT]: Now that I'm looking at it more, I think I'm going to try for a lower crossover point than 4.8kHz or so, since that tweeter can be crossed as low as 2.6Khz or so.

[greywarden]

Alright, better crossover, better impedance, better impedance phase.... Just better.

Both drivers are showing about 2.5-2.6kHz 5th Order Butterworth slopes, off-axis Sim is AMAZING :D

The 5kHz dip is in all the tweeter measurements I've taken, I'm 90% sure of the cause and it's being fixed, tweeter was mounted badly. :o And the 10kHz peak has been in every measurement in the basement I've ever taken, can't figure out what the f*ck it is, and it's driving me insane. :mad:

http://techtalk.parts-express.com//attachment.php?attachmentid=21571&d=1330606425

[scottq]

You're bringing these to SEC DIY 2012, right?!? :D

[greywarden]

I can be back home as early as July 8th and as late as the beginning of September, so we'll see, hopefully I can!

[killa]

Is that dip in the raw measurements also or is it there after the xo is added?

[greywarden]

It's in both measurements. I bought a Forstner bit that was for another driver, but thought the hole would be the correct size and it definitely wasn't, so one screw went halfway into the sidewall of the hole and the other screw was inside the hole, neither one of them were actually in the wood. But the Impedance sweep said it was sealed, probably because I put some thick gasket foam on the back of the tweeter.

[killa]

Do both the tweeter and woofer have a dip in the same spot? Have you calibrated your mic and soundcard? I would check the measurements against others to see if they also have a dip otherwise calibration may be off for some reason. At least that would be my guess.

[donradick]

Alright, better crossover, better impedance, better impedance phase.... Just better.

Both drivers are showing about 2.5-2.6kHz 5th Order Butterworth slopes, off-axis Sim is AMAZING :D

The 5kHz dip is in all the tweeter measurements I've taken, I'm 90% sure of the cause and it's being fixed, tweeter was mounted badly. :o And the 10kHz peak has been in every measurement in the basement I've ever taken, can't figure out what the f*ck it is, and it's driving me insane. :mad:

http://techtalk.parts-express.com//attachment.php?attachmentid=21571&d=1330606425

Very nice sim - I find that even if I have real problems getting a sim to "line up", a couple of hours playing with it usually fixes things (along with reading Wolfs pages) . Ok, boyo - the sim looks pretty good, but what are the measurements? BTW, I've often had dips around 5-7 K that "shouldn't" have been there. Thought about using some felt around the tweeter (ala DLR) to see if it was diffraction.

BTW, congrats on the Bronco fix. I've spent many a freezing night under a car.

[greywarden]

Do both the tweeter and woofer have a dip in the same spot? Have you calibrated your mic and soundcard? I would check the measurements against others to see if they also have a dip otherwise calibration may be off for some reason. At least that would be my guess.

The woofer breakup actually peaks at 5kHz, so that's why I'm about 90% sure it's the way the tweeter was mounted.

I'm going to go ahead and try to clean up the garage and start building the enclosures this weekend. Here's what I plan to build:

9.875" Wide x 15.5" Tall x 15.5" Deep (actual enclosure will be 8.25L), crossover mounted in the rear enclosure.

http://techtalk.parts-express.com//attachment.php?attachmentid=21575&d=1330646904

[greywarden]

Very nice sim - I find that even if I have real problems getting a sim to "line up", a couple of hours playing with it usually fixes things (along with reading Wolfs pages) . Ok, boyo - the sim looks pretty good, but what are the measurements? BTW, I've often had dips around 5-7 K that "shouldn't" have been there. Thought about using some felt around the tweeter (ala DLR) to see if it was diffraction.

BTW, congrats on the Bronco fix. I've spent many a freezing night under a car.

I've found that if you get tangled up with a sim, first, make a CSP file with only the vital info (x,y,z measurements, effective diameters, etc) then stop and close it. Then pick it up a day or 2 later and start over.

I ususally start super simple, and work my way up very methodically. This one I had to [attempt to] flatten out both drivers' impedances, then FR, and once that was done, implementing textbook crossovers pretty much nets you what you're looking for. That said, there's 17 essential parts to this crossover :eek: I was actually able to knock 2 off the tweeter.

[killa]

I've found that if you get tangled up with a sim, first, make a CSP file with only the vital info (x,y,z measurements, effective diameters, etc) then stop and close it. Then pick it up a day or 2 later and start over.

I ususally start super simple, and work my way up very methodically. This one I had to [attempt to] flatten out both drivers' impedances, then FR, and once that was done, implementing textbook crossovers pretty much nets you what you're looking for. That said, there's 17 essential parts to this crossover :eek: I was actually able to knock 2 off the tweeter.

I thought there were a lot of xo parts. Now I know why. :D

[donradick]

I've found that if you get tangled up with a sim, first, make a CSP file with only the vital info (x,y,z measurements, effective diameters, etc) then stop and close it. Then pick it up a day or 2 later and start over.

I ususally start super simple, and work my way up very methodically. This one I had to [attempt to] flatten out both drivers' impedances, then FR, and once that was done, implementing textbook crossovers pretty much nets you what you're looking for. That said, there's 17 essential parts to this crossover :eek: I was actually able to knock 2 off the tweeter.

That's pretty much the way I do it. Sometimes leave it, and come back a few days later and try something totally different. For instance, I've got an MTM design with a very nice reverse null (LR2 / B3 electrical), but I'm going to try a resim with a B3/B3 for off axis smoothness. I'll usually try with/without a zobel - so far haven't needed one.

[greywarden]

Alright, I got the majority of the of the pieces in the mail today, save 1 inductor and 2 caps, all on backorder :(

I'm going to buy a digital micrometer so I can measure the parts and use Emachineshop to develope a good layout! :cool:

I'll try to hook them up with some parts I have on hand that can be subbed in and get some measurements :)

[greywarden]

Alright, I got the majority of the of the pieces in the mail today, save 1 inductor and 2 caps, all on backorder :(

I'm going to buy a digital micrometer so I can measure the parts and use Emachineshop to develope a good layout! :cool:

I'll try to hook them up with some parts I have on hand that can be subbed in and get some measurements :)

Ok, that crossover, for some reason, was absolute garbage, and I don't even want to talk about it. I honestly don't know what happened.

BUT, I've spent almost the past 2 weeks working on a better, the best yet, crossover. Here's the response, notice the 1dB scale ;)

http://techtalk.parts-express.com//attachment.php?attachmentid=21885&d=1332107690

[killa]

I am betting there are less components in this xo? Looking good. How does it sound?

[greywarden]

I am betting there are less components in this xo? Looking good. How does it sound?

........21? :cool:

It doesn't sound just yet, I need to order more parts :o

[killa]

........21? :cool:

It doesn't sound just yet, I need to order more parts :o

:eek: My 3ways only have 20 parts. I take it you are still trying to flatten the impedance? Just curious as I thought the drivers should be easy to work with.

[greywarden]

Zobel, 2 notches and [electrical] 3rd order crossovers on each driver :rolleyes:

Really if I could, I'd implement another 2 notches on the tweeter's humps. :cool:

Buuuuut, I still have to order parts and measure, measure, measure. I tried pretty much every type of measurement I could, save outdoor, becuase it's still below 0*F here, and I'm just tired of being cold (going on 3 years...), but I think I finally got my measurements to work for me.

[johnnyrichards]

Zobel, 2 notches and [electrical] 3rd order crossovers on each driver :rolleyes:

Really if I could, I'd implement another 2 notches on the tweeter's humps. :cool:

Buuuuut, I still have to order parts and measure, measure, measure. I tried pretty much every type of measurement I could, save outdoor, becuase it's still below 0*F here, and I'm just tired of being cold (going on 3 years...), but I think I finally got my measurements to work for me.

Huh, Arizona weather in SoDak this weekend. Sunny, dry and in the 80's. Went for two runs, made a pile of sawdust...

[50 watt head]

Huh, Arizona weather in SoDak this weekend. Sunny, dry and in the 80's. Went for two runs, made a pile of sawdust...

Oh, so THAT'S what happened to our sunshine :p It's been rainy, cloudy, and cold here for the last two days.....

[greywarden]

Huh, Arizona weather in SoDak this weekend. Sunny, dry and in the 80's. Went for two runs, made a pile of sawdust...

I wish I liked to run. I only run when I have a pt test haha, I need someone to make me run

[Whitneyville1]

I think something is wrong. I have 3 pairs of the Vifa truncated BC25 tweeters and 1 pair of the "square" of the Vifa BC25's, and the Vifa FR graphs are a lot better than you're getting. My quick and dirty mic in Speaker Workshop reads them better too. If this isn't your tweet, then ignore me. I don't know a thing about your Peerless mid-woofer...sorry. I always think if it looks too complicated, maybe it is.

[donradick]

I think something is wrong. I have 3 pairs of the Vifa truncated BC25 tweeters and 1 pair of the "square" of the Vifa BC25's, and the Vifa FR graphs are a lot better than you're getting. My quick and dirty mic in Speaker Workshop reads them better too. If this isn't your tweet, then ignore me. I don't know a thing about your Peerless mid-woofer...sorry. I always think if it looks too complicated, maybe it is.

Remember Grey posted a 1 dB sim from PCD.

Grey
I really would not worry about those little 1-2dB wiggles. If it measures that flat, you should be good to go.

[greywarden]

Remember Grey posted a 1 dB sim from PCD.

Grey
I really would not worry about those little 1-2dB wiggles. If it measures that flat, you should be good to go.


I think something is wrong. I have 3 pairs of the Vifa truncated BC25 tweeters and 1 pair of the "square" of the Vifa BC25's, and the Vifa FR graphs are a lot better than you're getting. My quick and dirty mic in Speaker Workshop reads them better too. If this isn't your tweet, then ignore me. I don't know a thing about your Peerless mid-woofer...sorry. I always think if it looks too complicated, maybe it is.

Yeah this is a buyout from 2 years ago almost, now, it's a Tymphany DU0188 made to be mounted in a port on a certain "Austrian" speaker company. My original sims weren't very far off with a similar Vifa tweeter. I just had to get my measurement setup worked out.

And yes, that graph is in 1dB increments. With an FRD file and excel I determined that from 100Hz to 20kHz, it's better than +/- 1.75dB :)

I just hope it measures that way, too. I'm moving into an apartment next week with a guy I work with, so all my funds I've saved are being used on that, it'll be the 1st until I might be able to order parts.

[greywarden]

I got some wood cut today for a pair of enclosures, hopefully I glue them together correctly.

Brought to you by Sawstop, the cool sled that the woodshop guy made, and my buddy with an F-150

:D

[greywarden]

I'll get back to working on this when I get home. Shipping will be free :D

[joeybutts]

about time slacker. :p;)

[greywarden]

Yeah I still have to build a pair of enclosures :eek:

Then measure outside (5 acres in BFE :p )

Then sim again and again, and order parts...

Make some magic happen.

[greywarden]

Alright I'm back on this crap again. I picked up some parts to make a nice vertically, horizontally, and height adjustable speaker stand for measurements. Building the height-adjustable section today, and figuring out the rest after that. Also need to get a taller mic stand...

Then make better measurements, sim and order crossover parts.

Time to get this sh!t done.

[joeybutts]

11 days.......

:p

[greywarden]

I won't be done by then lol. I'll be getting some new tattoos and piercings haha

[joeybutts]

Bwhahahaha. I meant it had BEEN 11 days....I'm not even CLOSE to finishing. :p

Can't wait to see the tats! Unless they are somewhere I don't want to see. :D

[greywarden]

No it's going to be a slave girl (the kinky type, for clarity haha) on my right calf...

The piercings you probably dont ;D

[greywarden]

UPDATE:

Measurement stand built. Tattoo has changed, too, lol. Piercings are gonna hurt.

Starting on the boxes tomorrow. Hopefully finished by Thursday, because I'm heading out friday.

[joeybutts]

UPDATE:

Measurement stand built. Tattoo has changed, too, lol. Piercings are gonna hurt.

Starting on the boxes tomorrow. Hopefully finished by Thursday, because I'm heading out friday.

How can you post this update with no pics of ANYTHING??????

[greywarden]

Nevermind the old hideous testbox lol

28349

28350

[scottq]

I like your test stand! Is there just a slot on the middle 2x4 to slide up and down? Very clever.

[greywarden]

Yes! It was kind of scary raising the blade up through the 2x4 with visions of the blade kicking it through my body, lol. It doesn't look as good as I imagined it, but it's just too damn hot to get good work done in that shop. I still might end up bracing it a little more, but we'll see how it does making measurements, again, preferably this week.

[greywarden]

Got my wood cut today, I'll have to wait for this storm to blow over so I can cut the pieces down to proper dimensions...

28391

[DIYNut42]

Send that storm down this way if you can. I'd build speakers out under a tarp if it meant we could finally get some rain.

[greywarden]

Alright I'm back from Myrtle Beach, tattoo is mostly healed, and I glued up all the 1.5" thick side panels today. Tops/Bottoms are tomorrow.

[greywarden]

Glued up one pair of Top/Side, Bottom/Side pieces yesterday, doing the second set today. Possibly gluing up some bracing today too.

http://i619.photobucket.com/albums/tt271/johnchanning1/e31759e4.jpg

[joeybutts]

Now THAT is what I am talking about. Sick stuff mang. Keep rolling.

[greywarden]

Just waiting on glue to dry.

[greywarden]

Ordered a pair of the big boy terminals, a sheet of 3/4" Sonic Barrier, and the Jasper Jig 240 from PE lastnight.

Ordered 3/4" Double Flute Stright Cut, 45* Chamfer, and 1/4" Spiral Upcut bit from Woodcraft this morning.

The baffles will be a bit of a puzzle, but they should be done this weekend if I get my parts in by Friday.

Currently gluing up the last brace panels, so I'll be cutting them up to fit inside the box today.

[greywarden]

Alright, got my braces trimmed up with the scrollsaw and then used a holesaw on the drill press for the windows in the bottom.

Next, I devised a fancy method to glue the braces together properly... Here's some pics.

http://i619.photobucket.com/albums/tt271/johnchanning1/31a12899.jpg

http://i619.photobucket.com/albums/tt271/johnchanning1/e122f13e.jpg

http://i619.photobucket.com/albums/tt271/johnchanning1/7490325e.jpg

[greywarden]

Working out some kinks with the bracing that was somehow sticking out of the front of the box on one of them... Doing the Baffles this weekend - hopefully.

Ordered (2) Dayton AMP-100s and a MiniDSP 2x4 with the Advanced Stereo 2-way plug-in.

Going to attempt to have these ready for the SE DIY show.

[joeybutts]

Not dead yet!!! Woot!

yay for progress!

[greywarden]

No, no, still dead - Just kicking it again...

Went to Lowes and picked up a bushing set, it's 51/64" which is about 1mm bigger than 3/4" so I don't know if I'll have a little wiggle room, or if I'll have to sand it out a little, we'll see.

[Jim Griffin]

Greywarden,

I'm bringing my DEQX PDC-2.6 HD processor to the SEC event so we could do a quick crossover with it if your MiniDSP set-up doesn't make it in time.

Jim

http://www.deqx.com/faq.php

[greywarden]

Alright, said it ships in 3-5 days, so yeah it just might not make it, thanks!

[lunchmoney]

WOW

Rock the f out dude

Great work, great process, great thread

great name too. love it.

[greywarden]

Thanks, it's been a long pull. I'm going to pick some caulking today and I'll be lining the interior with 3/4" Sonic Barrier! Waiting on my second pairs of terminals to come in before I mess with the rear baffles.

[greywarden]

Got the boxes caulked up yesterday, I guess nobody makes latex caulking without silicone in it nowadays? I picked up the Loctite brand stuff because it was the only thing that didn't say "plus silicone".

30557

About to go out to the shop and bring them inside to be lined with 3/4" Sonic Barrier today, since I'm feeling like crap, got sent home from work, and missed a couple important appoinements - ARG.

Oh yeah and MiniDSP shipped out today from Hong Kong >_>

[Sydney]

...I guess nobody makes latex caulking without silicone in it nowadays.
The "Dollar" stores have latex caulk cheap
( fwiw: never had any problems w silicone )

[greywarden]

Yeah I actually read the bottle when I was out there earlier, and even though it feels like silicone, it says there's no silicone in it. I just don't want to have the chance of something happening ;)

Alright, well, boxes are lined now :)

30559

[bkeane1259]

You're gonna need casters for those things. By the time you install Baffles, XO's and Drivers, they're gonna be back-breakers!! LOL.

[greywarden]

You're telling me, the shop is about 500-600 feet from the house, and I've been carrying them back and forth lol. I hold onto the braces and they look like giant hulk fists haha!

[greywarden]

Got the baffles in from Takitaj today, I have one of them gluing up so far, Tim wdid an excellent job, especially on such a short notice, he got them in the mail in one day!

30589

[bkeane1259]

Nice...that tweeter flange is a beotch to flush mount. You would have spent some considerable time just making the jig for that cutout.

CNC FTW :applause:

[greywarden]

Yeah, he's doing me a flatpack if-- er. When I decide to build another set, in less than 2 years time... lol

[Whitneyville1]

I don't think those cabs are stout enough. An M-1 Abrams would crush 'em flat.:p BTW, P-E's web-guys need to look at Vinyl Engine's "smilies". We've got a "beating a dead horse" and some other cool ones there we should have here. When I see this thread, I'm always reminded of that "smilie", and it gets a work-out on the "how many angels can dance on the tip of my stylus?" threads.;) Medieval Historical reference to the famous Concordance of Worms that debated for nearly 140 years "How many Angels can dance on the head of a pin?" while the "Hundred (and 63) Years' War" was going on. BTW, their conclusion: "As many as choose to." There's a story behind THAT story!
My Ancient and Medieval History teacher at Central High was Miss Marjorie Pike in 1969-70. She had been my Mother's history teacher in 1944. She had been Tony Randall's (the actor "The Odd Couple") teacher in 1937. Myself and and another band member were arguing about something in ancient Rome, and I said "Miss Pike said so". Kent said "Well, how does SHE know?" I replied, "Well she was THERE!" Ten other people fell down on the floor laughing and Kent turned purple! She died in 1981 AT 94 YEARS OF AGE!!! She had lived in the same apartment building, two and a half blocks from the school since 1931.
Anthony Randel Feingold was her favorite student ever. We wrote outlines for her class. Tony Randall wrote his in NINE colors of FOUNTAIN pen ink, in block and cursive writing for the headings and sub-headings, on un-lined plain 100% rag paper he put in page protectors she showed MY class as the "ideal example" of an outline. The late Paul Harvey was her student too.

[greywarden]

WOW. Yeah I need that dead horse smilie, haha. I'll build the next set to be M-1 proof ;)

[Whitneyville1]

Ummm, I'm not quite sure I'd use them for cover against a Garrand...;) Unless you have the sparking disappearing bullets of TV/movie fame! Don't you love the guy who crouches behind an ordinary garbage can and a 9mm round "sparks" when it hits the can and vanishes? One ooold movie I watched on Hulu the other morning had a cop who thought like I do. Two bad guys are behind a car pinning him and his partner down with 9mm MG's, so he takes his .38 and shoots under the car and shoots their ANKLES and when they fall, he pops 'em in the head.
I kinda like those really cheap Australian "action" movies shot in Hong Kong and such about 20 years ago. They were too cheap to do stunts, so they'd actually just hit a guy in the mouth with a piece of pipe or such and a dozen teeth would go flying! Gave him $25 and he was happy I guess...The story(???) dialogue and acting (???????) are awful, but they're so BAD, they're funny good. Kinda like Mexican "soap operas". You don't have to understand a word. In two minutes you've got it figured out.

[tomzarbo]

Holy Cow. You should weigh them for sure. They look like they weigh a ton. No resonance there!

TomZ

[greywarden]

I'm gluing the rear baffles on in the morning, then wiring and probably screwing down the drivers, I'll put them on the scale after that, I'm pretty curious, haha.

[greywarden]

Alright they're both glued up, the internal wiring is done, and I'm going to hit them both with the flush-cut bit after I recover from a giant delicious lunch :)

[JasonP]

I want to chime in and say that I'm also interested in seeing what these things are going to weigh. :)

[donradick]

I'm gluing the rear baffles on in the morning, then wiring and probably screwing down the drivers, I'll put them on the scale after that, I'm pretty curious, haha.

The rule is that any design must be "finished" no earlier than 3 hours before you are scheduled to leave for a DIY event.

[greywarden]

Hmmm... It'll be close ;D

I got them all flushed up, filled some spots with filler, gonna go back out there in a little bit to finish sanding them, and put a coat of Zinsser sealer/primer on them, at least they'll show up with some color on them that way, lol.

[greywarden]

Alright, I've got one speaker completely finished, save for maybe some stuffing, if it's needed. Tomorrow after work, if the weather's not too bad, I'll try getting some measurements made :) Also, still waiting for my MiniDSP to come in the mail.

Nevermind the n00b mistakes like the razorblade slash and router bites, lol.

http://i619.photobucket.com/albums/tt271/johnchanning1/20121112_132524.jpg

http://i619.photobucket.com/albums/tt271/johnchanning1/20121112_132552.jpg

[johnnyrichards]

Looks nice

[tomzarbo]

Couldn't you find anything beefier to hook these up with than those wimpy binding posts?

J/K. I've used them a few times, they are very manly connectors.

Looking good man.
TomZ

[greywarden]

I could try some tractor lugnuts made from solid copper and plated in Adamantium next time :D

Thanks guys, finally getting these finished up. If I counted correctly, this is version 5 haha

[bkeane1259]

Holy mother of God, how big are those binding posts?? Can you stick a gym shoe in there for some perspective?? LOL. Wow!!

[tomzarbo]

http://www.parts-express.com/pe/showdetl.cfm?partnumber=260-314


!

[greywarden]

They're literally about the same diameter as a quarter, lol.

Oh yeah and 26.8 lbs each.

[tomzarbo]

Hey, you've waited a few years to get this far, might as well go all out!
But I'm afraid that 8 gauge battery cable's gonna pull the terminals right off that tweeter! :D

[greywarden]

Oh they'll be welded onto the backside of the tweeter next time, when I do the complete rebuild in solid carbonite - with Han Solo sticking out the sides...

[Whitneyville1]

I wuz gonna say those look lot's a semi's lug nutz. Gonna run 000's to 'em? I think granite cabs are in your future. Obsidian? Tungsten? (nearly 1/2 again denser than lead). Heavy Metal man...:headphones: