aculous
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Posts posted by aculous
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I wish contractors would do shit like that on the ships. It would make cable tracing so much easier
HAH! look I am just happy if they actually build a skid to spec. One...I am still looking for 1 to be right.
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Time to give props where they are due. I've learned a lot about amplifier design over the years from some of the best. Besides the books shown here I also worked with Jim Strickland and Mark Albers daily for years
2 of those look really familiar, the dog ears and tabs make me think that I chose well. One day I want to do something simple, maybe a ESP design with a pre-fab PCB. Nothing anywhere near this level though, I would be happy with a 200 wpc with low distortion.
Love the thread and being able to see the process. Its one thing to realize theres a problem, its something else to have a good idea why it happened and how to fix it, thats a mark of a true professional. Thanks for sharing.
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When did chevy start using a aluminum block in the 3/4 ton gassers 6.0 instead of the 6.0 iron block?!
I am not talking the Denali 6.0 that was upgraded to the 6.2
Not talking about the 6.6 either
Talking about the 3/4 ton gas 6.0 liter
Being serious, does anyone know??? I thought they were iron block, told a friend that, they said they are aluminum, now I have to do some digging around to find out, LOL
"The L76 Vortec MAX used in the GMT900's is an aluminum block with a 9.6:1 compression ratio and 367 hp. It uses regular fuel and has cylinder deactivation and is based on the Gen III block.
The LQ9 Vortec Max used in the GMT800's is a cast iron block with a 10:1 compression ratio and 345 hp. It uses premium fuel and is based on the Gen IV block.
The LY6 6.0L used in heavy duty GMT900's is a cast iron block with 9.6:1 compression and 352-353 hp (312 over 10,000 GVW) and is based on the Gen IV block.
The old LQ4 that's in the GMT800 heavy duty models, the H2, and the current G-vans is a Gen III, cast-iron block with 9.6:1 compression that makes 300-325 hp.
And finally, the LS2 (used in the Trailblazer SS) uses a 10.9:1 compression ratio with a Gen IV block to make 395 hp on premium fuel.
Hope this helps.
http://www.media.gm.com/us/powertrai...07/07truck.htm "
the power of the internet and waiting at work for fuckers to get back to me....
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Anywho, some bad ass offshore rig pictures... stands nearly 1600ft high...
So why the height? is it for stability to go farther out or something? Genuinely interested and kind ignorant on offshore rigs
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The Morel Virtus line it of components are around $900...no idea about these I would be interested to know the price as well.
All the ones I have found say call dealer for pricing...sooo it probably means I shouldn't afford it.
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"In an effort to provide the very best signal to noise ratio and lowest distortion possible, 109 dB (A-weighted) and <.002% THD+N (when operated in Class A)"
Dear GOD thats beautiful.
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where the heck did you find that?
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so jealous, looks beautiful so far. Ballsy placement too, love it.
Can't wait for the amps though, those will be the jewels.
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can't wait to see what you do with it. I saw a jesse james quote today he posted on instagram or some social media, reminded me of what you keep doing. Always workin on something new and moving forward. Props on that, its a hard thing to do anymore.
If you start making aluminum chamfer-edged trim rings it wouldn't hurt my feelings
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I read this post probably 5 or 6 times. Debated on responding because I don't really know you like that, but you kinda struck a chord.
I can't relate like some of these other guys can, I just read your post and it reminded me of losing certain people in my life. For me it wasn't instant, especially when the circumstances weren't great. For some people in my life it was just good to have some type of closure. Hopefully if nothing else that is what this is for you.
Hope you figure this one out and you come out better for it.
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Also just wait till I do my doors. You'll feel a lot better.
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Yea they kinda glossover the green stage sanding step
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He has no need to teach you anything. He doesn't owe you anything.What are you trying to imply fresh prince?
I'm not trying to correct or teach mr D'Amore at all, he should be teaching me if anything.
As said; I'm just trying to understand his design choice, which he did a great job of explaining.
Now I know more than the day before, great things right?
You don't deserve anything from him or anyone else because you have no respect for people and their efforts based upon your comments. If you have a question there are ways to ask it. These people are giving away free advice, at their leisure to people in our hobby. A little respect for their time and everyone elses on this forum would be a good thing for you.
This isn't a engineering forum, he is not presenting untested findings to you. In fact I regret ever saying anything about an amplifier because of your comments.
Maybe i joined the wrong forum then. A lot of the things I said/asked/stated were just out of interest but get taken way out of context. I'll leave the discussion for now. Thanks again mr d'Amore for developing this product and taking the time to answer my questions.
I don't think you joined the wrong forum man, I just think that you went about it the wrong way. Now back to the boombox.
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Hey guys thanks for the props!! Yes it is true the idea came from a defibrillator. It seemed silly to me that all these guys in the db drag lanes need to have 1/2 of their vehicle full of batteries and alternators to maintain a decent B+ voltage for a few seconds. That and the fact that the amount of total energy all those batteries contain is huge and they are only using a fraction of it during their burp. It is like taking a NASCAR car to a drag race. A vehicle that is designed to go 200mph for hours on end probably isn't the best design for a 1/4 mile burst. So when you look at the way a defibrillator is used its like burping an amp. Defibrillators don't have massive power cords that need mega amps at 220V, in fact some of them are portable and run off a very small battery. Why, because they don't need to shock someone for hours at a time, just a quick burst. They just draw a small amount of power continuously during 'charge up' and once all the energy they need is accumulated they release it all at once. With the operation of the defibrillator in mind, I tried to apply it to car audio. I set off to build a prototype which was based on (2) T1500.2 output sections, I had to liquid cool the MOSFETs because even the FETs in the T1500.2's were not big enough to handle the kind of power I wanted. By keeping them very cold they could be pushed beyond their limits. (This may be the radiator ect... part of the story that someone posted). Then I needed a way to store a bunch of energy, electrolytic caps and some of the carbon based caps that are commonly used in car audio were not even close to being capable of storing the amount of energy I needed, so I used 12 small motorcycle batteries in series to get 140+ Volts. Then I built a power supply that would convert 12VDC to 140VDC to 'charge' these batteries. I got this contraption all put together the night before the Annual Rockford Fosgate Employee Sound-Off. I didn't really how much power it would make exactly, but to try to shorten this long story it ended up putting out 15,030 Watts RMS! This is how 15k Watts became the goal for a 'real' amp. The first step towards making it a 'real' amplifier was I had to eliminate the array of batteries. I began searching high and low for something that would do it. I found a company that makes capacitors for hybrid cars and large wind turbines. These worked perfectly. The caps I ended up using are 400 Farads, and there are 180 of these in the T15kW. Then I needed an intelligent power supply that could monitor these caps and add energy to them as needed, and it had to be fast, really fast if this amp was going to play music and not just a burst. So during music these caps are charging, discharging, charging, discharging. The power supply in the T15kW can charge the caps 35,000 times per second. Of course many other things had to happen like finding MOSFETs that could handle it, a way to keep it cool without antifreeze and car radiators ect. The final product met all the goals and then some. The main idea is that with this technology the amplifier can put out more power during transients or bursts than the car it's connected to could supply. Again thanks for the props, look for hybrid technology to hit our smaller amplifiers in the near future. PS if you guys would like to see pictures of the original liquid cooled proto I'll post them. This proto was eventually dubbed the D'Fibrillator. hahathis guy really has no idea who tony is
youre arguing against an engineer who designed amps for a living
here are pictures of the most efficient amp aver made.. even after the years no person has come close to building something like it
Tony Damore Posted - 12/06/2006 : 9:36:39 PM
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Tony D'Amore Design Engineer Rockford Corporation
how did I not see these pics before now! The only gut shot I ever saw was the cap bank. Thanks for posting Miguels, and ya know thanks Tony D for designing it
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What are you trying to imply fresh prince?
I'm not trying to correct or teach mr D'Amore at all, he should be teaching me if anything.
As said; I'm just trying to understand his design choice, which he did a great job of explaining.
Now I know more than the day before, great things right?
He has no need to teach you anything. He doesn't owe you anything.
You don't deserve anything from him or anyone else because you have no respect for people and their efforts based upon your comments. If you have a question there are ways to ask it. These people are giving away free advice, at their leisure to people in our hobby. A little respect for their time and everyone elses on this forum would be a good thing for you.
This isn't a engineering forum, he is not presenting untested findings to you. In fact I regret ever saying anything about an amplifier because of your comments.
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Any plans to offer just the amp? I would love a mini-amp or preamp that puts out 40wpc thats clean and undistorted and has that look. More and more people are looking at headphone amps too.
It's bi-amped.... And probably designed for assembly.
To make it a consumer ready product it needs a complete redesign.
Buy a LM3886 and a toroid, enjoy your great sound on a budget
I've looked at gainclones and pass lab designs before, Also the ESP and tripath designs. I don't feel comfortable with my testing abilities yet to design a noise free distortion free amp. I am learning though. EE is a pain, and really the amp is not even the expensive part, its usually the power supply.
Edit: I could have said this simpler. I trust Tony D to design something of quality. I would pay for that because it saves me time and I enjoy being able to support people who do quality work. Sometimes the wallet can...sometimes not.
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I love the aluminum faceplate, and heatsink idea.
Any plans to offer just the amp? I would love a mini-amp or preamp that puts out 40wpc thats clean and undistorted and has that look. More and more people are looking at headphone amps too.
Hope this catches on more!
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People follow me all the time thinking I am an unmarked. Or I love the people who do 120 past me then see the spotlight as they are passing me and slam on the brakes. "dude if I were a cop I would pull you over BECAUSE you slammed on your brakes"
But I live in the communist republic of Virigina where my taxes are paid for in speeding tickets so I try to take it easy.
Was hard on the bike today though.
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in Off Topic - Random, Misc posts - the forum "Junk Drawer"
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