Tempest & Alchemy & Dayton Ultimax Build - AVS Forum | Home Theater Discussions And Reviews
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post #1 of 89 Old 02-22-2014, 01:00 PM - Thread Starter
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I'm starting a Tempest, Alchemy & Dayton Ultimax build.

At this point, the Dayton Ultimax boxes are put together and I've just started the three Tempests. I'll post pictures below.

I'm debating between painting the two subs black and with bedliner like Mario did in his Cinemar build or I will have them veneered and stained the same colour as my wainscotting (dark stained oak), since these two will end up in back corners.

I'm looking for opinions on that.

Audio: Denon AVR-4520, Fusion 12 Tempest (LCR), Fusion 8 Alchemy (4xSurrounds+2xWides+2xHeights),4 x 15" Dayton Ultimax
Video: Sony VPL-HW40ES, Darbee Darblet, SMX 2.35:1 Screen
Seating: Fusion Lagoon Chairs
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post #2 of 89 Old 02-22-2014, 01:00 PM - Thread Starter
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Reserved for current state pictures.



Audio: Denon AVR-4520, Fusion 12 Tempest (LCR), Fusion 8 Alchemy (4xSurrounds+2xWides+2xHeights),4 x 15" Dayton Ultimax
Video: Sony VPL-HW40ES, Darbee Darblet, SMX 2.35:1 Screen
Seating: Fusion Lagoon Chairs
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post #3 of 89 Old 02-22-2014, 01:21 PM - Thread Starter
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Pictures





Audio: Denon AVR-4520, Fusion 12 Tempest (LCR), Fusion 8 Alchemy (4xSurrounds+2xWides+2xHeights),4 x 15" Dayton Ultimax
Video: Sony VPL-HW40ES, Darbee Darblet, SMX 2.35:1 Screen
Seating: Fusion Lagoon Chairs
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post #4 of 89 Old 02-26-2014, 05:17 PM - Thread Starter
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Alchemy and Tempest kits were picked up today. Just as everyone says, Erich does an amazing job packaging them up. I'll start to build the Alchemy boxes this weekend.

The plan is to cover all walls except the bottom near the vent and cross over with 1 1/2" egg crate foam. I'll also stuff the top part of the box with Dacron behind the waveguide.

I am really looking forward to hearing them when they are put together. I spent a couple hours taking to Jeff about his design and he really has me looking forward to this unit.

I'm in the process of veneering the subs with oak and staining them a dark dark colour to match the wainscot that will be going up.

I really want to thank Erich and everyone who did the work on developing the SEOS and all of the work did with the compression driver.

Audio: Denon AVR-4520, Fusion 12 Tempest (LCR), Fusion 8 Alchemy (4xSurrounds+2xWides+2xHeights),4 x 15" Dayton Ultimax
Video: Sony VPL-HW40ES, Darbee Darblet, SMX 2.35:1 Screen
Seating: Fusion Lagoon Chairs
Theater Build
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Last edited by Jeff in Canada; 07-30-2014 at 07:22 PM.
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post #5 of 89 Old 02-26-2014, 05:35 PM - Thread Starter
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Audio: Denon AVR-4520, Fusion 12 Tempest (LCR), Fusion 8 Alchemy (4xSurrounds+2xWides+2xHeights),4 x 15" Dayton Ultimax
Video: Sony VPL-HW40ES, Darbee Darblet, SMX 2.35:1 Screen
Seating: Fusion Lagoon Chairs
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post #6 of 89 Old 02-26-2014, 05:38 PM - Thread Starter
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I'm looking for suggestions on lining up the baffle on the Tempests before gluing. On the subwoofer build I lined them up dry and then put in the speakers and drilled holes. I then used the press inserts and bolts to line them up once glued. For the Tempests, should I predrill and put in screws, then undo it, glue it and use the screws to line it up again?

I'm open to better ideas.....

Audio: Denon AVR-4520, Fusion 12 Tempest (LCR), Fusion 8 Alchemy (4xSurrounds+2xWides+2xHeights),4 x 15" Dayton Ultimax
Video: Sony VPL-HW40ES, Darbee Darblet, SMX 2.35:1 Screen
Seating: Fusion Lagoon Chairs
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post #7 of 89 Old 02-26-2014, 05:40 PM
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I glued, slipped the baffle in place, and then clamped it down slowly moving the baffle with my fingers to keep it aligned. Then let it set.

If you use too much glue this step becomes more difficult. Less is more at this step. Just make sure to spread it around (for coverage) and very thin.
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post #8 of 89 Old 02-27-2014, 04:58 AM - Thread Starter
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Thanks. I will do that tonight.

Audio: Denon AVR-4520, Fusion 12 Tempest (LCR), Fusion 8 Alchemy (4xSurrounds+2xWides+2xHeights),4 x 15" Dayton Ultimax
Video: Sony VPL-HW40ES, Darbee Darblet, SMX 2.35:1 Screen
Seating: Fusion Lagoon Chairs
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post #9 of 89 Old 04-05-2014, 11:59 AM - Thread Starter
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Added a few more pictures here

Alchemy's



Alchemy in front of the column it will go in



Sub Picture of #3 & 4




Tempest Pictures

Audio: Denon AVR-4520, Fusion 12 Tempest (LCR), Fusion 8 Alchemy (4xSurrounds+2xWides+2xHeights),4 x 15" Dayton Ultimax
Video: Sony VPL-HW40ES, Darbee Darblet, SMX 2.35:1 Screen
Seating: Fusion Lagoon Chairs
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post #10 of 89 Old 04-05-2014, 12:01 PM - Thread Starter
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For anyone who is looking for scale.....you can see the Alchemy is 1/3 the size of the Tempest in the picture above.

Audio: Denon AVR-4520, Fusion 12 Tempest (LCR), Fusion 8 Alchemy (4xSurrounds+2xWides+2xHeights),4 x 15" Dayton Ultimax
Video: Sony VPL-HW40ES, Darbee Darblet, SMX 2.35:1 Screen
Seating: Fusion Lagoon Chairs
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post #11 of 89 Old 04-05-2014, 06:09 PM
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I rolled on flay back for my sealed 18s and i wasnt too pleased with the finish. For my tempests i did flat back and spray liner like mario. It looks pretty good but venner is best IMHO
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post #12 of 89 Old 04-05-2014, 06:18 PM
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Quote:
Originally Posted by WarrenBerry View Post

I rolled on flay back for my sealed 18s and i wasnt too pleased with the finish. For my tempests i did flat back and spray liner like mario. It looks pretty good but venner is best IMHO

Drop by my shop and will cut you up some veneer. Just pay for the wood.
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post #13 of 89 Old 04-05-2014, 06:30 PM - Thread Starter
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Quote:
Originally Posted by WarrenBerry View Post

I rolled on flay back for my sealed 18s and i wasnt too pleased with the finish. For my tempests i did flat back and spray liner like mario. It looks pretty good but venner is best IMHO

Mario seemed to have a large number of good ideas.......I'm also copying alot of his theater. I am using the exact same items that he used on my sub build. I have two subs with plate amps but two will use the EP4000 amp he uses.

I just primed all of my speakers (minus the one being veneered) with the BIN primer he used. Next up is the same black spray paint he used. I also have the cans of bed liner that I'll use once I have a low wind day and I can spray the speakers out in my yard. I know he said that it really misted and got on things and I do not want to take a chance on any of my stained columns getting the bedliner on them.

I was going to do the veneer myself on two of my subs, but my stain guy is going to do it, and at $30 / hour it will be well worth him doing it the right way (as opposed to the way I'd screw it up) He'll stain it to match. The only issue, is that I plan to paint the front of the sub and also the bottom. I'll need to wrap it up nicely when I spray bedliner on it.

Audio: Denon AVR-4520, Fusion 12 Tempest (LCR), Fusion 8 Alchemy (4xSurrounds+2xWides+2xHeights),4 x 15" Dayton Ultimax
Video: Sony VPL-HW40ES, Darbee Darblet, SMX 2.35:1 Screen
Seating: Fusion Lagoon Chairs
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post #14 of 89 Old 04-05-2014, 08:15 PM
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Yeah i did the same primer and flat back and bed liner. I did it out in the garage and the solvents from the paint and bedliner were overwhelming. I work in a heavy duty diesel shop so when i say it was overwhelming you know i mean it smile.gif
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post #15 of 89 Old 04-05-2014, 09:13 PM
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Quote:
Originally Posted by WarrenBerry View Post

Yeah i did the same primer and flat back and bed liner. I did it out in the garage and the solvents from the paint and bedliner were overwhelming. I work in a heavy duty diesel shop so when i say it was overwhelming you know i mean it smile.gif

If anyone's qualified to make the call on huffing paint fumes its you Warren! tongue.gifbiggrin.gif
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post #16 of 89 Old 04-06-2014, 06:54 AM - Thread Starter
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If anyone's qualified to make the call on huffing paint fumes its you Warren! tongue.gifbiggrin.gif

I am using a painter mask with organic filters. It worked fine. I did not smell a thing. I closed up the room and did it.

Audio: Denon AVR-4520, Fusion 12 Tempest (LCR), Fusion 8 Alchemy (4xSurrounds+2xWides+2xHeights),4 x 15" Dayton Ultimax
Video: Sony VPL-HW40ES, Darbee Darblet, SMX 2.35:1 Screen
Seating: Fusion Lagoon Chairs
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post #17 of 89 Old 04-06-2014, 01:38 PM - Thread Starter
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Primed, sanded, primed, sanded, primed, sanded and now primed and I'll do final sand tomorrow.
Alchemy's


Tempests



Now, I'm just waiting for some nice weather and no wind and then I'll spray paint them black and also put the bedliner spray on the Tempests.

Should I put the bedliner coating on the Alchemy's if I'm just going to bury them in the columns?

Audio: Denon AVR-4520, Fusion 12 Tempest (LCR), Fusion 8 Alchemy (4xSurrounds+2xWides+2xHeights),4 x 15" Dayton Ultimax
Video: Sony VPL-HW40ES, Darbee Darblet, SMX 2.35:1 Screen
Seating: Fusion Lagoon Chairs
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post #18 of 89 Old 04-06-2014, 01:51 PM
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Originally Posted by Jeff in Canada View Post

Primed, sanded, primed, sanded, primed, sanded and now primed and I'll do final sand tomorrow.
Alchemy's


Tempests



Now, I'm just waiting for some nice weather and no wind and then I'll spray paint them black and also put the bedliner spray on the Tempests.

Should I put the bedliner coating on the Alchemy's if I'm just going to bury them in the columns?

I wouldn't even of put primer on them if they were going to be buried in the columns!...lol but that's just me smile.gif
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post #19 of 89 Old 04-06-2014, 01:55 PM - Thread Starter
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I wouldn't even of put primer on them if they were going to be buried in the columns!...lol but that's just me smile.gif

They are going behind black FR701, and you can see through it a bit. That being said, I'm painting them all black at a minimum to make it harder to see through the cloth. MDF just likes to suck up paint on the cut ends. I can definitely state that the BIN primer that Mario picked just seals up the ends really nicely after the second coat. I'm very happy with it.

Audio: Denon AVR-4520, Fusion 12 Tempest (LCR), Fusion 8 Alchemy (4xSurrounds+2xWides+2xHeights),4 x 15" Dayton Ultimax
Video: Sony VPL-HW40ES, Darbee Darblet, SMX 2.35:1 Screen
Seating: Fusion Lagoon Chairs
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post #20 of 89 Old 04-07-2014, 11:27 AM - Thread Starter
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I'm looking for a DIY suggestion on stands for the Tempests. To be in the 42-44" range on my stage I need a 12-14" stand. I was thinking double layer of MDF top and bottom with smaller inner box between them filled with sand. Any suggestions or designs out there?

Audio: Denon AVR-4520, Fusion 12 Tempest (LCR), Fusion 8 Alchemy (4xSurrounds+2xWides+2xHeights),4 x 15" Dayton Ultimax
Video: Sony VPL-HW40ES, Darbee Darblet, SMX 2.35:1 Screen
Seating: Fusion Lagoon Chairs
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post #21 of 89 Old 04-07-2014, 01:22 PM
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Originally Posted by Jeff in Canada View Post

I'm looking for a DIY suggestion on stands for the Tempests. To be in the 42-44" range on my stage I need a 12-14" stand. I was thinking double layer of MDF top and bottom with smaller inner box between them filled with sand. Any suggestions or designs out there?

 

http://www.tnt-audio.com/clinica/stubby_e.html


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post #22 of 89 Old 04-10-2014, 04:41 AM - Thread Starter
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Thanks for the link to the stands. I'll start to build those in the next week or so.

I painted the speakers finally, but in my theater. Keeping in mind what Mario had said about the mist getting everywhere, I build a three wall spray booth with drywall and plywood that I had left over. I put plastic on the floor and I covered my new stained columns in plastic. (good thing since I saw black paint mist on the plastic across the room last night.

Here are the quick iPhone pictures. I'm waiting for a nice day and then I'll take the three Tempests outside and put a quick coat of black on them again....wait 30 minutes and then put the black bed liner spray on them. Alchemy's are good enough with a few coats of black and they are ready to get stuffed into my columns next week.




Audio: Denon AVR-4520, Fusion 12 Tempest (LCR), Fusion 8 Alchemy (4xSurrounds+2xWides+2xHeights),4 x 15" Dayton Ultimax
Video: Sony VPL-HW40ES, Darbee Darblet, SMX 2.35:1 Screen
Seating: Fusion Lagoon Chairs
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post #23 of 89 Old 04-10-2014, 08:11 AM
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Looking good Jeff! Looks like I'll get to compare the Tempest against my JTR 228HT's tonight as a fellow member is going to bring his by for some listening impressions, I'm really looking forward to hearing the Tempests. smile.gif
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post #24 of 89 Old 04-10-2014, 11:27 AM
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I think you'll really like the Tempests. I just finished assembling 2 of the three that I'm building and they sound excellent. Hopefully I'll have time to do the third tonight since I just need to connect the wires, stuff with polyfill, and mount the drivers.

To anyone else planning a Tempest build I HIGHLY recommend buying the assembled crossovers. I didn't and easily added a week to my build time since I could find the time to get them assembled. On the bright side I feel a certain level of accomplishment from tackling it myself.
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post #25 of 89 Old 04-16-2014, 03:14 PM - Thread Starter
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I will be ordering my 3rd and 4th 15" Ultimax speakers in the next day or so. I have the boxes already built. My first two were powered with plate amps (Bash 500S) but for these two I'm thinking that I'll go with an external amp.

I'm looking for opinions on this: Should I go with something like a Behringer EP4000? Or should I look at one of the iNukes with DSP to EQ up the low end? Would I be better off with the EP4000 and perhaps miniDSP?

Audio: Denon AVR-4520, Fusion 12 Tempest (LCR), Fusion 8 Alchemy (4xSurrounds+2xWides+2xHeights),4 x 15" Dayton Ultimax
Video: Sony VPL-HW40ES, Darbee Darblet, SMX 2.35:1 Screen
Seating: Fusion Lagoon Chairs
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post #26 of 89 Old 04-16-2014, 03:47 PM
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Personally for me, I say spend the extra $70 and go with the inuke 6000DSP over the EP4000.

But I guess that would also depend if you're wiring the UM15-22's as a 2ohm load?
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post #27 of 89 Old 04-16-2014, 03:48 PM
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Quote:
Originally Posted by Jeff in Canada View Post

I will be ordering my 3rd and 4th 15" Ultimax speakers in the next day or so. I have the boxes already built. My first two were powered with plate amps (Bash 500S) but for these two I'm thinking that I'll go with an external amp.

I'm looking for opinions on this: Should I go with something like a Behringer EP4000? Or should I look at one of the iNukes with DSP to EQ up the low end? Would I be better off with the EP4000 and perhaps miniDSP?

Great job on your builds, Jeff! I'm sure you'll love the sound. I use an iNuke 3000DSP to power 2 Ultimax UM15-22's in 4 cu.ft sealed enclosures. UM's wired for 4 ohms, each channel is ~800W peak from the iNuke, a great match for the Ultimax. You can tweak the lower end to boost below 20Hz with DSP.

Two sound great, 4 should blow you away... biggrin.gif

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post #28 of 89 Old 04-16-2014, 05:09 PM - Thread Starter
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Great job on your builds, Jeff! I'm sure you'll love the sound. I use an iNuke 3000DSP to power 2 Ultimax UM15-22's in 4 cu.ft sealed enclosures. UM's wired for 4 ohms, each channel is ~800W peak from the iNuke, a great match for the Ultimax. You can tweak the lower end to boost below 20Hz with DSP.

Two sound great, 4 should blow you away... biggrin.gif

Thanks for the tip. I'll order it this week.

Audio: Denon AVR-4520, Fusion 12 Tempest (LCR), Fusion 8 Alchemy (4xSurrounds+2xWides+2xHeights),4 x 15" Dayton Ultimax
Video: Sony VPL-HW40ES, Darbee Darblet, SMX 2.35:1 Screen
Seating: Fusion Lagoon Chairs
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post #29 of 89 Old 04-16-2014, 05:37 PM - Thread Starter
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Personally for me, I say spend the extra $70 and go with the inuke 6000DSP over the EP4000.

But I guess that would also depend if you're wiring the UM15-22's as a 2ohm load?

My assumption was that I'd wire each of them as 4 ohm loads. The amp has two channels and I should be able to drive each of the two subs. (each on a channel.)

Audio: Denon AVR-4520, Fusion 12 Tempest (LCR), Fusion 8 Alchemy (4xSurrounds+2xWides+2xHeights),4 x 15" Dayton Ultimax
Video: Sony VPL-HW40ES, Darbee Darblet, SMX 2.35:1 Screen
Seating: Fusion Lagoon Chairs
Theater Build
DIY Speaker / Sub Build
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post #30 of 89 Old 04-16-2014, 06:17 PM
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Originally Posted by Jeff in Canada View Post

My assumption was that I'd wire each of them as 4 ohm loads. The amp has two channels and I should be able to drive each of the two subs. (each on a channel.)

Yeah I'd great the iNuke 6000DSP then, I believe its been bench tested to have 2200watts per channel @ 4ohms. So I think it would be perfect to power four UM15-22's, I guess you could also use a iNuke NU4-6000 too and each driver would get its own channel.

http://www.parts-express.com/behringer-inuke-nu4-6000-6000-watt-four-channel-power-amplifier--248-6800
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