Thanks for posting this, I am very much concerned with the internment, only one we have and it is a mess and getting worse. I have recycled(I know it does not always actually get recycled but I at least do what I can) And I have bought a great percentage of things used, all my life. I made sure my cars, no matter how modded, ran clean, including my first 510 Datsun in 1972. I have put very expensive cats on race cars where not required and bought most race tires as take offs from race teams. Been many years since I looked into Nuc power but there are far better plants that the old not so great ones in this country, far safer, cheaper, cleaner....and ways to regenerate, if that is the right term, the fuel to get a great deal more out of it. I even read the end result would be pretty easy to launch into the sun. Considering the massive amount of rockets being fired off today, very nasty things they are but I still then dang cool on the other hand....this could be not saying I know it, a viable solution to at least some of the issues.
I live in a very beautiful place but it saddens me to see retirees moving here regularly and building McMansions that was massive amounts of resources, etc....nobody needs that much space, just their blind egos.
I could go on for days about all this, I hope we wake up enough as a civilization to make it through were we are heading. Actually I believe that will happen but not sure how many will survive until then.
Rick
I live in a very beautiful place but it saddens me to see retirees moving here regularly and building McMansions that was massive amounts of resources, etc....nobody needs that much space, just their blind egos.
I could go on for days about all this, I hope we wake up enough as a civilization to make it through were we are heading. Actually I believe that will happen but not sure how many will survive until then.
Rick
Electricity production Sweden 2023
Coal, natural gases and other non renewable sources are included in the "Mainly biofuels" and are under 1% of the totals.
Source: https://www.energimyndigheten.se/nyhetsarkiv/2024/minskad-elanvandning-och-elproduktion-under-2023/
https://www.scb.se/hitta-statistik/...elproduktion-efter-produktionsslag-manadsvis/
Coal, natural gases and other non renewable sources are included in the "Mainly biofuels" and are under 1% of the totals.
Source: https://www.energimyndigheten.se/nyhetsarkiv/2024/minskad-elanvandning-och-elproduktion-under-2023/
https://www.scb.se/hitta-statistik/...elproduktion-efter-produktionsslag-manadsvis/
Drivers, not human, I have used many "home audio" and some pro audio drivers for a very long time, rarely bought car audio branded products as simply way over priced. I was a dealer for a few years of some very good brands and did use and sell them at the time but now only own two, Image Dynamics 1D 15 subs, which I am going to install in our RV.
One of the best values are in the RS series from Parts Express as well as SB acoustics from Madisound, here in the US at least. Its seems GRS has some good values as well that might be applicable for car audio. I did use some ribbon tweeters very successfully, mounted to the A pillar roll bar in a street/track/audio comp build I did years ago.
I have build my own crossovers from scratch but have set aside the amazing ones from a set of Rainbow Reference car audio speakers, I was a dealer and my cost was still an insane $4200 for the two way set. I went active using Yamaha build, Image Dynamics highly upgraded and labeled balance line EQ and Xovers, rack mounts in the console, and the ID DAC, 20 bit ladder DAC with 20 volt balanced outputs, over 120db dynamic range and SNR, pretty dang cool from over 25 years ago. At the time I do not think there was a better DAC on the planet, certainly not for car audio and we AB tested it against the best we could find.
All that said, huge savings on great speakers are easy to find when buying raw drivers from several great sources.
One of the best values are in the RS series from Parts Express as well as SB acoustics from Madisound, here in the US at least. Its seems GRS has some good values as well that might be applicable for car audio. I did use some ribbon tweeters very successfully, mounted to the A pillar roll bar in a street/track/audio comp build I did years ago.
I have build my own crossovers from scratch but have set aside the amazing ones from a set of Rainbow Reference car audio speakers, I was a dealer and my cost was still an insane $4200 for the two way set. I went active using Yamaha build, Image Dynamics highly upgraded and labeled balance line EQ and Xovers, rack mounts in the console, and the ID DAC, 20 bit ladder DAC with 20 volt balanced outputs, over 120db dynamic range and SNR, pretty dang cool from over 25 years ago. At the time I do not think there was a better DAC on the planet, certainly not for car audio and we AB tested it against the best we could find.
All that said, huge savings on great speakers are easy to find when buying raw drivers from several great sources.
Stereo, not surround, in a vehicle, even if you want rear speakers for any reason, surround is not worth the trouble or cost.
Bi amp, Tri amp, Quad amp, etc....so much easier and better.
Canned, meaning factory crossovers that come with most anything hardly ever work for the best in a vehicle.
One of my favorite CD players back in the late 90s or early 2000's was the Eclipse 8503 but even cheaper and still great I think it was the 8554 or something like that. I went from a $20k system to under $2k using one of those HU's and still easily won the few comps I entered and anybody that heard the system I had for many many years loved it. I had Seas aluminum cone mids and tweets, Arc Audio subs and a 5 channel amp, that was it.
BUT, massive sound deadening, upholstery completely redone for best effect, very exactly placement of the drivers and proper tuning in all aspects, all left over from my main built when I was more serious into competition.
I would not build any system in a vehicle without active xover and at least 10 band parametric EQ, it can be done without but why use up so much time and energy when so much easier with them.
Rick
Bi amp, Tri amp, Quad amp, etc....so much easier and better.
Canned, meaning factory crossovers that come with most anything hardly ever work for the best in a vehicle.
One of my favorite CD players back in the late 90s or early 2000's was the Eclipse 8503 but even cheaper and still great I think it was the 8554 or something like that. I went from a $20k system to under $2k using one of those HU's and still easily won the few comps I entered and anybody that heard the system I had for many many years loved it. I had Seas aluminum cone mids and tweets, Arc Audio subs and a 5 channel amp, that was it.
BUT, massive sound deadening, upholstery completely redone for best effect, very exactly placement of the drivers and proper tuning in all aspects, all left over from my main built when I was more serious into competition.
I would not build any system in a vehicle without active xover and at least 10 band parametric EQ, it can be done without but why use up so much time and energy when so much easier with them.
Rick
Sound deadening techniques, that work, period. Not to be boastful, just that I have a massive amount of experience in having beaten prior world champs, coached numerous champs, helped tens of thousands get very top quality products for very good prices and developed cut to the chase and get the best results for the level you are out to obtain with the least materials and cost and time involved (which to me is fun work so time flies by)
I am trying to find my guide used by those tens of thousands, with pictures, so I can put it up somewhere with a link to it. I had to develop it after years of writing it out, at least a million emails sent during the time I ran the business, I always answered every single one. Right now, time to take a break, my mind is on the little custom SFF computer I am putting together.
I will type it out if I cannot find it.
Rick
I am trying to find my guide used by those tens of thousands, with pictures, so I can put it up somewhere with a link to it. I had to develop it after years of writing it out, at least a million emails sent during the time I ran the business, I always answered every single one. Right now, time to take a break, my mind is on the little custom SFF computer I am putting together.
I will type it out if I cannot find it.
Rick
I may of forgotten something important about my deadening methods, and car audio in general. I was blessed to meet, sometimes compete, sometimes help install and learn from, etc some of the top people in the industry. And I listened carefully to all they said as well as hundreds of feedbacks, it not thousands, of my fellow enthusiast customers. I may of worked out a few ideas on how to do things a bit differently, sometimes better I believe, but I owe it to them for what I learned and gladly passed on. Just like my install advice for speaker placement, learned from some of the best and tried them all as well and won competitions using what I was taught. In my first two years of starting the sound deadening business and competition, traveling 20k miles a year and holding down a full time active duty Navy job, commuting, duty for 24 hours every two weeks besides regular hours and rebuilding my audio system 5 times the first year as I learned newer and better things, averaged about 4 hours sleep a night. What I do my best to make up for lack of knowledge is work my **** off and learn all I can from the best I can
I have always been a hobbyist first, business second, in the end it cost me a multi million dollar loss as I just did not spend the time to see to the security of the business and it was attacked but somebody I thought I could trust. MY BAD, there are bad people out there and I did not protect myself from them, I am not the victim though sure felt like it, I was part of the problem. I still choose to trust people as much as I dare in these changing times though I have little most would want to take but I have what they cannot, true love, health, and peace of mind and so much more.
I have always been a hobbyist first, business second, in the end it cost me a multi million dollar loss as I just did not spend the time to see to the security of the business and it was attacked but somebody I thought I could trust. MY BAD, there are bad people out there and I did not protect myself from them, I am not the victim though sure felt like it, I was part of the problem. I still choose to trust people as much as I dare in these changing times though I have little most would want to take but I have what they cannot, true love, health, and peace of mind and so much more.
Very cool but also very clean so either new or never used for what it was built for....a bit of chipping, scuffs, small dents, dirt, mud, would be more like it
It is a pretty current model so maybe not fully "broken in".
I really hope such a rare car is not just being used as a status symbol.
Rick
It is a pretty current model so maybe not fully "broken in".
I really hope such a rare car is not just being used as a status symbol.
Rick
Not impressed with the owner, might not even know how to drive worth a crap as many with fast cars are horrid drivers, I got tired of them getting in my way on track days, time trials, etc....why I gave my very quick, highly modded, 40mpg, 400HP Fiesta that much power, same power to weight as a Porsche Turbo when I built it up so they could not drag race me out of the corners they were creeping around and usually not in the right line to go fast anyway, it worked
Still a very cool car, just needs a real driver to own it.
Rick
Still a very cool car, just needs a real driver to own it.
Rick
I liked cars a lot more about 40 years ago…
I remember riding my bike as a 12 year old to the Fiat/Lancia dealership and staring at the Scorpions they had.
Wound up owning two of them, 11 serial numbers apart.
I actually got to attend the very last group B race, was great fun.
The cars I owned and drove back then (Opel Ascona, Mini Cooper, Alfa, Porsche) never had stereos. Every time I tried, I quickly realized that it wasn’t going to be practical with the extra noise from the modified engines…
Could’ve purchased a GR Corolla recently but chose the standard model instead.
I remember riding my bike as a 12 year old to the Fiat/Lancia dealership and staring at the Scorpions they had.
Wound up owning two of them, 11 serial numbers apart.
I actually got to attend the very last group B race, was great fun.
The cars I owned and drove back then (Opel Ascona, Mini Cooper, Alfa, Porsche) never had stereos. Every time I tried, I quickly realized that it wasn’t going to be practical with the extra noise from the modified engines…
Could’ve purchased a GR Corolla recently but chose the standard model instead.
Ah! A car audio car thread.
One of my favorite hobbies is car audio and more specifically competing. I’ve been competing for about 2 years now in DBdrag here in the states. Finishing second at last years regionals.
BUT I don’t compete in SPL formates I compete in what’s called bass race / top dog. To summarize you have 30 seconds to be at a 139.9 db inside the car. You can’t be in it or touch it.
This requires the car/system to be built so it plays extremely flat. I spent about a year designing my box to reach this goal. It’s essentially a very basic slot ported box but with some specific supports added on the inside to hinders it peak out put and flattening out the response. It only does a 148 @ 10k watts, but it’s in useable range there’s only a 3 db difference from end to end.
Here are some pictures
One of my favorite hobbies is car audio and more specifically competing. I’ve been competing for about 2 years now in DBdrag here in the states. Finishing second at last years regionals.
BUT I don’t compete in SPL formates I compete in what’s called bass race / top dog. To summarize you have 30 seconds to be at a 139.9 db inside the car. You can’t be in it or touch it.
This requires the car/system to be built so it plays extremely flat. I spent about a year designing my box to reach this goal. It’s essentially a very basic slot ported box but with some specific supports added on the inside to hinders it peak out put and flattening out the response. It only does a 148 @ 10k watts, but it’s in useable range there’s only a 3 db difference from end to end.
Here are some pictures
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Look at all the technical details you can get on the Lancia Rally 037 here.
http://www.lanciarally037.com/e-home.htm
Full specifications down to timing angle and spark plug gap, Weber carb jets used, drawings, etc. Very cool.
twin-choke carburettor type 40DC NVH 12/250.
Diffuser : 33
Main fuel jet : 33
Min. fuel jet : 50
Air jet : 160.
http://www.lanciarally037.com/e-home.htm
Full specifications down to timing angle and spark plug gap, Weber carb jets used, drawings, etc. Very cool.
twin-choke carburettor type 40DC NVH 12/250.
Diffuser : 33
Main fuel jet : 33
Min. fuel jet : 50
Air jet : 160.
Cool car audio project!
What always amazed me was how thick the wires for car audio amps were. Like crazy 4 gauge or something like that.
I have some subs you may be interested in. I designed a 6th order slot loaded bandpass using two Alpine 12in drivers. Design goal was something line 133dB recall - this was for someone else who must have been on competitions.
https://www.diyaudio.com/community/threads/pp-slot-loaded-sub-with-alpine-swr-12d2.264737/
105dB at 2.83v sensitivity. Output was a duct that went through the backseat ski flap from trunk. These sims are for open space 4pi, so when inside an enclosed car cabin, the boost is at least 12dB.
It won’t let me quote your previous post XRK, but anyways.
Yeah most power runs from alternators and batteries to amps use 1/0 sometimes 2/0 if your going crazy.
My SD12k has 4 1/0 runs from 90AH of LFP lithium. It’s a tad over kill but Brazilian style class D is pretty dirty and likes tons of clean power.
It clamps around 10k watts @ 12v so around 820 amps under full loads.
Awesome 6th order! I’ve always wanted to play with one. I’m thinking of doing a 6th order in a truck and do a blow through.
8 12s on 50k watts sounds like a ton of fun!
Yeah most power runs from alternators and batteries to amps use 1/0 sometimes 2/0 if your going crazy.
My SD12k has 4 1/0 runs from 90AH of LFP lithium. It’s a tad over kill but Brazilian style class D is pretty dirty and likes tons of clean power.
It clamps around 10k watts @ 12v so around 820 amps under full loads.
Awesome 6th order! I’ve always wanted to play with one. I’m thinking of doing a 6th order in a truck and do a blow through.
8 12s on 50k watts sounds like a ton of fun!
That Lancia chassis reminds me of the last pure track car project I was building, 2,300 lb 95 M3, only two more lower bars and it would not need a body....I went pretty nuts on it, 3-way custom Olins, all tubular suspension, fully built diff, trans, shifter, Tilton pedals, same steering column used in NASCAR, fully forged LS1.....I had to stop 90% finished when we decided to go full time RVing, now way to properly transport and support it even with a stacker trailer and pusher motorhome....then the financial issue happened previously mentioned. One part I really liked it to make it as stealthy as possible, nearly a full upside down wing when looked at under the car, just the center floor plan was left to rebuild. Bottom of trunk we cut out and a huge dual plan fully adjustable diffuser built in its place. I was actually working with a former F1 aerodynamics expert on the project.
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I have never built anything designed for more than SQ and not designed for but did well in SQL, just good and loud but very musical bass.
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I have never built anything designed for more than SQ and not designed for but did well in SQL, just good and loud but very musical bass.
I found some old eclipse sw8122 12" subs on internet, 2 for 150€. Are they good? Internet tells me thay are sq subs. 140g mms 21bl with coils in series and 30+- mm xmax one way. Is that xmax real?
Aluminium voicecoil, witch i dont like, but they use very loose suspension to achieve a 27hz fs. I think that helps with sq too and efficiency but the vas is big 90L, again, compensates with a low qts 0.3
Aluminium voicecoil, witch i dont like, but they use very loose suspension to achieve a 27hz fs. I think that helps with sq too and efficiency but the vas is big 90L, again, compensates with a low qts 0.3
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