5 Hz? Whoooooo... I wonder what else I am going to break in my home? There has been a lot of stuff that has been destroyed in the past. You had mentioned wanting to get them coated in a "bedliner" material. I looked into a product called Hurculiner to treat my electrical truck I purchased and restored a couple of years ago, but I went with a commercial company to do the work. You can get a quart to try. If you like it, then a gallon some rollers should do the trick. Use a sample board. Most auto stores around here have it on the shelf. I didn't like it because it wouldn't hold it's shine in the weather. Well congrats on your project Raven!
Maelstrom 21" With 4 - 2100 Gram 18" Passive Radiators
Here is my build thread for the Maelstrom 21. I'll try to provide enough quality pics during my build for you.
I'm using Kevin's Maelstrom 21"er with the passive radiator design. I normally don't like building a passive radiator sub with a Qts over .4, but it is so close, I won't have a problem.
Here's the deal....23" x 23" x 60"; 13 cubes and 15.5 hz box tuning. With the typical passive radiator design there is more of a roll off but at this already low box tuning, I'll have more than plenty of bass. I needed the height to match my main speaker's height and get the cabinet volume I need. Better WAF here.
I just picked up the pallet of materials from my mill. My construction material is 1.25" mdf. It looked like I had ten bags of concrete in my truck going down the road. In the roll of plastic, I've got two sheets of Pionite black slate laminate to match all of my other speakers.
Cabinet resonance with this thick material; I don't think so. Moving it? Now that's another challenge.
Just got back from Houston with the materials so here is the first build pic:
Read more: So where are the Maelstrom-X 21" Build Threads! - Home Theater Systems - Electronics and Forum - HomeTheaterShack http://www.hometheatershack.com/for...elstrom-x-21-build-threads.html#ixzz0XWvNWnLo
I'm using Kevin's Maelstrom 21"er with the passive radiator design. I normally don't like building a passive radiator sub with a Qts over .4, but it is so close, I won't have a problem.
Here's the deal....23" x 23" x 60"; 13 cubes and 15.5 hz box tuning. With the typical passive radiator design there is more of a roll off but at this already low box tuning, I'll have more than plenty of bass. I needed the height to match my main speaker's height and get the cabinet volume I need. Better WAF here.
I just picked up the pallet of materials from my mill. My construction material is 1.25" mdf. It looked like I had ten bags of concrete in my truck going down the road. In the roll of plastic, I've got two sheets of Pionite black slate laminate to match all of my other speakers.
Cabinet resonance with this thick material; I don't think so. Moving it? Now that's another challenge.
Just got back from Houston with the materials so here is the first build pic:
Read more: So where are the Maelstrom-X 21" Build Threads! - Home Theater Systems - Electronics and Forum - HomeTheaterShack http://www.hometheatershack.com/for...elstrom-x-21-build-threads.html#ixzz0XWvNWnLo
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21 - 40 of 181 Posts
Well I'm ready to seal the coffin. I've decided I've got enough polyfil and the small amount of Sonic Barrier should handle any standing waves or distortion, so I'm sealing it up. Every hole is pre-drilled and ready for the glue and silicone.
I had a driver delivery I had to get to UPS and needed a puter battery to keep my system running, so here is where it's at tonight. After wire transferring funds to China for driver freight tomorrow, I'll get back on it and try to make some progress.
Hey fellows I've got the new F1200TS today and I've got some excellent reports for you and I haven't even used it yet. It is a masterpiece of it's own kind. I've got a lot of input from folks in the pro use and I'll post that info when I get some more time.
I appreciate the support! :T
Thanks
Mike
I had a driver delivery I had to get to UPS and needed a puter battery to keep my system running, so here is where it's at tonight. After wire transferring funds to China for driver freight tomorrow, I'll get back on it and try to make some progress.
Hey fellows I've got the new F1200TS today and I've got some excellent reports for you and I haven't even used it yet. It is a masterpiece of it's own kind. I've got a lot of input from folks in the pro use and I'll post that info when I get some more time.
I appreciate the support! :T
Thanks
Mike
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Ok, I can play in the forum a minute or so.... :wave:
I've got the bottom painted, the routed and sanded Red Oak runner feet installed, and to tease and taunt ya a bit, I temporarily dry fitted the sub and couple of passives. It looks so small in these pics!
I've still got to fill in the wood around the bottom of the cabinet and sand it down square to get it ready for the laminate. We may get snow tomorrow and the coldest temps of the season, so that's not a good time to fire up my blast furnace and spread contact cement. I may get postponed on the laminate tomorrow. I'll get the final mass loaded in the passive radiators tonight and have them sit overnight in the house with the Devcon two part epoxy. That will be just another step out of the way.
Well Lonley Ravin, here are more teaser pics for ya. Just wait till the black slate Pionite is on! They will really look sharp then. Look at that massive terminal. They will accept bananna plugs, ring terminals, or up to a #4 supply wire! :heehee:
Without the drivers in place, I was able to stand it up in the upright position. I don't have a clue how I'm going to weigh it. I might get two scales, balance it on a 2 x 6, and sum the totals of the scales. But in reality, who cares! :flex:
I've got the bottom painted, the routed and sanded Red Oak runner feet installed, and to tease and taunt ya a bit, I temporarily dry fitted the sub and couple of passives. It looks so small in these pics!
I've still got to fill in the wood around the bottom of the cabinet and sand it down square to get it ready for the laminate. We may get snow tomorrow and the coldest temps of the season, so that's not a good time to fire up my blast furnace and spread contact cement. I may get postponed on the laminate tomorrow. I'll get the final mass loaded in the passive radiators tonight and have them sit overnight in the house with the Devcon two part epoxy. That will be just another step out of the way.
Well Lonley Ravin, here are more teaser pics for ya. Just wait till the black slate Pionite is on! They will really look sharp then. Look at that massive terminal. They will accept bananna plugs, ring terminals, or up to a #4 supply wire! :heehee:
Without the drivers in place, I was able to stand it up in the upright position. I don't have a clue how I'm going to weigh it. I might get two scales, balance it on a 2 x 6, and sum the totals of the scales. But in reality, who cares! :flex:
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I'm kind of new to this stuff, but does "working on sound treatment" mean telling everyone to shut up while you're working?
addle:Hey dude.....it's Woodstock all over again here.....you can't imagine all of the colors and things I'm seeing again. I don't want to open the door and lose it all.....I'm just about done with the laminate and the drivers go in tomorrow! Weeeee...... I've just got to figure out how to wire these passive radiators!
Well, it's 9:40 p.m. 8 hours of labor, and one gallon of contact cement later. I had to get the laminate on tonight because it's going to be in the 20s in the a.m.
HERE YA GO RAVEN! More not so whimpy build pics! All of the laminate is done and there is about 3 hours of seams to be beveled, cleaned, and treated before the drivers can go in tomorrow. Fast enough fer ya now?
Kevin, I normally don't do this, but I've been making love all day and I'm going to share my lady's pictures with you. Actually you will see her from 3 angles.
Everyone have a great evening cause this ole Texas boy is tired and ready to go in for the nite.
Drumroll.......here she is:
HERE YA GO RAVEN! More not so whimpy build pics! All of the laminate is done and there is about 3 hours of seams to be beveled, cleaned, and treated before the drivers can go in tomorrow. Fast enough fer ya now?
Kevin, I normally don't do this, but I've been making love all day and I'm going to share my lady's pictures with you. Actually you will see her from 3 angles.
Everyone have a great evening cause this ole Texas boy is tired and ready to go in for the nite.
Drumroll.......here she is:
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Hey Mr. Raven:
Here are the completed pics. I plan on making nice grills, but I have all week to do that. At least these qaulify for the first completed build of the Maelstrom 21s!! :T They don't have to have grill covers to qualify.
Pardon the spots on the camera lens. I need to take the time to properly clean it to get rid of those dirty circles and spots.
I've got just barely enough room to get a nice grill beside the 21" beast. I've framed it already.
The first pic show just how large that driver is compared to the 18" passives on the sides. They look like 12"ers!!
The next shot shows the passives with my huge binding post for extra large speakers. The binding posts will accept bannana plugs, terminals, or #4 wire.
The third shot is from the side before I installed the passives showing my "basket made out of stretched audio grill cloth" and full of polyfill properly secured to the top of the cabinet. It also shows some polyfill on the bottom and the construction of the rear of the opposing radiators. I have Sonic Barrier on the top and the bottom of the cabinet, just because it was left over stock. It may provide some standing wave reduction, and with this cabinet, I don't think it will have a resonating problem? If so, the Sonic Barrier should handle that.
The fourth picture is a repost that shows the intricate details in construction before the laminating.
I got rave reviews on the Black Slate Pionite laminate from the buyer of my two stacked subs, and with a little application of Armorall once in the house, these should really shine. :wave:
It's late and raining, so I'm not going to attempt to get it inside tonight. Hopefully I'll have it online in my L/R HT and have a report by tomorrow afternoon. I've got a day's of bookwork to do too. I have Linkwitz's tone CD and a bass test cd, so I'll see if the graphs properly represent the 15.5 & 16 hz box tuning shown in the graphs. I really need to run some pink noise through them for a couple of days too, and then re-measure the tuning.
Yall have a great evening!
Here are the completed pics. I plan on making nice grills, but I have all week to do that. At least these qaulify for the first completed build of the Maelstrom 21s!! :T They don't have to have grill covers to qualify.
Pardon the spots on the camera lens. I need to take the time to properly clean it to get rid of those dirty circles and spots.
I've got just barely enough room to get a nice grill beside the 21" beast. I've framed it already.
The first pic show just how large that driver is compared to the 18" passives on the sides. They look like 12"ers!!
The next shot shows the passives with my huge binding post for extra large speakers. The binding posts will accept bannana plugs, terminals, or #4 wire.
The third shot is from the side before I installed the passives showing my "basket made out of stretched audio grill cloth" and full of polyfill properly secured to the top of the cabinet. It also shows some polyfill on the bottom and the construction of the rear of the opposing radiators. I have Sonic Barrier on the top and the bottom of the cabinet, just because it was left over stock. It may provide some standing wave reduction, and with this cabinet, I don't think it will have a resonating problem? If so, the Sonic Barrier should handle that.
The fourth picture is a repost that shows the intricate details in construction before the laminating.
I got rave reviews on the Black Slate Pionite laminate from the buyer of my two stacked subs, and with a little application of Armorall once in the house, these should really shine. :wave:
It's late and raining, so I'm not going to attempt to get it inside tonight. Hopefully I'll have it online in my L/R HT and have a report by tomorrow afternoon. I've got a day's of bookwork to do too. I have Linkwitz's tone CD and a bass test cd, so I'll see if the graphs properly represent the 15.5 & 16 hz box tuning shown in the graphs. I really need to run some pink noise through them for a couple of days too, and then re-measure the tuning.
Yall have a great evening!
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Oh yea....I forgot....one 21" sub in each corner of the HT will drive out all of the termites, thus saving you thousands of dollars in future repairs!
Thanks for the reminder. Linkwitz's CD only gives me 4 or 5 short bursts and that is why I use it.
Years ago I did happen to blow four of Dan's Adire passive radiators out after I hit the wrong button. It sounded like a train engine coming apart! Weights were being thrown off the backs of the passives and hitting the sides and the passive radiators opposite them. I had the amp cranked up and I was trying to hit a high hz frequency tone signal for some reason, but I hit the wrong button on the controller.
I bet anyone in here that has been building speakers for a while has done something like that once or twice!
onder:Thanks for an excellent product. :T
Mike
21 - 40 of 181 Posts
