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Are Class D Amps scaring the hell out of the BIG Boys ?

ev13wt said:
Just saying: the Tesla is a crappy handling boat as well. Heavy AF too. Nice ninja edit as well. You ain't getting out of this one. :)

If you pull up in a 70' CUDA, well, it's like pulling up in an 64 E-Type instead of 19 F-Type. Nobody fking cares about the pretty F-type. (an it's an actual car unlike that Tesla boat)
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Dunno... That 70 'Cuda boat (which it is) might be appealing to ageing baby boomers who couldn't have owned one when they were new, or even used, but it's still an antiquated iron-block pushrod engine that even for the time was crude, inelegant and inefficient. It might have some cachet with American buyers who didn't know any better, but even my old '59 Peugeot 403 -- also with crossflow hemispherical combustion chambers and plugs piercing the valve cover -- was technically more sophisticated, despite being almost as unsophisticated as a car could get.

In twenty, thirty, forty years, folks who are now in their teens will be going gaga over vintage Teslas and resto-modding them (actually, it's already happening; see https://www.youtube.com/results?search_query=rich+rebuilds) and wondering why anyone ever wanted those big piggy stinky slow internal combustion engines, which will be about as popular as steam cars are today. That's because it's not technology, or style, or speed, or sound, or any particular attribute of a thing that makes it desirable and collectible to a future generation. What makes a thing desirable and collectible when you're 40 or 50 is the fact that you wanted one when you were 12 and couldn't have it.

Yeah, the "Ninja edit" was because I hit "Post Reply" prematurely. Oops. Well, that and I suck.
 
DaveVoorhis said:
Dunno... That 70 'Cuda boat (which it is) might be appealing to ageing baby boomers who couldn't have owned one when they were new, or even used, but it's still an antiquated iron-block pushrod engine that even for the time was crude, inelegant and inefficient. It might have some cachet with American buyers who didn't know any better, but even my old '59 Peugeot 403 -- also with crossflow hemispherical combustion chambers and plugs piercing the valve cover -- was technically more sophisticated, despite being almost as unsophisticated as a car could get.

In twenty, thirty, forty years, folks who are now in their teens will be going gaga over vintage Teslas and resto-modding them (actually, it's already happening; see https://www.youtube.com/results?search_query=rich+rebuilds) and wondering why anyone ever wanted those big piggy stinky slow internal combustion engines, which will be about as popular as steam cars are today. That's because it's not technology, or style, or speed, or sound, or any particular attribute of a thing that makes it desirable and collectible to a future generation. What makes a thing desirable and collectible when you're 40 or 50 is the fact that you wanted one when you were 12 and couldn't have it.

Yeah, the "Ninja edit" was because I hit "Post Reply" prematurely. Oops. Well, that and I suck.
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30 years from now, lithium batteries will have long been replaced by Mr. Fusion anyhow ... And you ain't seen nothin till you see an elephant motor running on banana peels ...
 
cpt_paranoia said:
I've done it again. To save space... An engineer, striving for efficiency again...
...
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"Engineers thinking" That makes everything very efficient. Like, 8 people talking for 30 minutes (Half a work day wasted) about how they are saving time and being efficient - explaining to each other what the other omitted by himself without consulting their team. :)

But let me tell you, programmers are WAY worse.
They will just stop working on something and start on "Gizmo B" because it looks like more fun. :)
 
DaveVoorhis said:
Dunno... That 70 'Cuda boat (which it is) might be appealing to ageing baby boomers who couldn't have owned one when they were new, or even used, but it's still an antiquated iron-block pushrod engine that even for the time was crude, inelegant and inefficient. It might have some cachet with American buyers who didn't know any better, but even my old '59 Peugeot 403 -- also with crossflow hemispherical combustion chambers and plugs piercing the valve cover -- was technically more sophisticated, despite being almost as unsophisticated as a car could get.

In twenty, thirty, forty years, folks who are now in their teens will be going gaga over vintage Teslas and resto-modding them (actually, it's already happening; see https://www.youtube.com/results?search_query=rich+rebuilds) and wondering why anyone ever wanted those big piggy stinky slow internal combustion engines, which will be about as popular as steam cars are today. That's because it's not technology, or style, or speed, or sound, or any particular attribute of a thing that makes it desirable and collectible to a future generation. What makes a thing desirable and collectible when you're 40 or 50 is the fact that you wanted one when you were 12 and couldn't have it.

Yeah, the "Ninja edit" was because I hit "Post Reply" prematurely. Oops. Well, that and I suck.
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You really need to lighten up, Francis, and take a ride in one of those dinos. :) It's almost as if you really need to say digital is better than analog, and there hasn't been a thread in a while!!! :p


Steamcars is a nice trigger. First off, if you pull up in an ACTUAL steam car, the CUDA will be rendered irrelevant next to it.
When the first Otto cars came out, everyone was like: "Pffff, that will never catch on. It's loud and stinky, one one pharmacy in town sells gasoline, there is water to be had at any darn lake. Never in a million years."

See the analogy to the upcoming electric cars and the discussions surrounding them. :)

Pull up in this: https://www.morgan-motor.co.uk/roadster/ and no other car in the parking lot is relevant.


DaveVoorhis said:
The fact that programmers can get away with doing the more fun thing is why I first became a programmer.
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Lazy programmers are better programmers. They code efficiency, because else they would have to work. :)
 
ev13wt said:
You really need to lighten up, Francis, and take a ride in one of those dinos. :) It's almost as if you really need to say digital is better than analog, and there hasn't been a thread in a while!!! :p
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Ooh, we're due! :D

I've ridden -- a very short distance, when I worked in a garage in Canada in the 80's -- a Hemi 'Cuda. A very cool car.

But so are electric cars.
ev13wt said:
Pull up in this: https://www.morgan-motor.co.uk/roadster/ and no other car in the parking lot is relevant.
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Maybe... But if we're going all British Sports Car, I'd rather show up in this: https://www.arielmotor.co.uk/atom/overview/
 
DaveVoorhis said:
Ooh, we're due! :D

I've ridden -- a very short distance, when I worked in a garage in Canada in the 80's -- a Hemi 'Cuda. A very cool car.

But so are electric cars.

Maybe... But if we're going all British Sports Car, I'd rather show up in this: https://www.arielmotor.co.uk/atom/overview/
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I tried the Austrian version of that. I do like "more car", but they are fun, fun, fun - probably better than a low IQ blonde with daddy issues and a low self esteem.

In 60 years, when a car with explosions drives through a town, you bet it will turn heads. You park, and kids will be like: "Turn it on and give it some whatever you do to make it scream like that!!!"
 
GChief said:
I have wanted to get in an Atom since I saw one on the TV’s :rockon:
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But you do know that whenever you park a British car and drive away there will be a random nut, bolt or thingy laying in the driveway and nobody knows where it came from or knows where it could fit?
 
ev13wt said:
But you do know that whenever you park a British car and drive away there will be a random nut, bolt or thingy laying in the driveway and nobody knows where it came from or knows where it could fit?
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It’s just like an AMF HD, once you rebuild them right their good to go and that’s half the fun.

Edit: not so much nuts and bolts. I just wonder if they had any automotive EE’s working there back in the day.

Edit: actually in my limited experience I was always working with the electrical on friends British sports cars.

Edit ll: ha old dude on the interweb moment, thought I deleted the first edit and did the second :rolleyes:
 
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British electrical is terrible, and only surpassed in crappyness by Italian cars.

Sell before 50K. Does not matter if it's a Fiat or a Ferrari.

:)


Edit: edits are en vogue in this thread.
 
Learned how to create it. For millennia they relied on lightning striking a tree, then saving embers to start a new cookfire, then saving embers from that fire, etc ad infinitum... If the ember died or it rained, no more fire till lighting set another tree ablaze, months, years, maybe generations later, whenever the god of the sky willed it. Such was Life.
 
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DaveVoorhis said:
Excellent. Though if my experience of EE's and other engineers is any indication, it will add fuel to the debate rather than resolving it.

Put any ten engineers in a room, and you'll have twelve, maybe fifteen competing opinions...
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Well, that's why we have design reviews. Generally they're pretty congenial, but not always, and with the power of simulations these days it's much harder to argue the point and much, much more difficult to say "well, in my experience" with any hope of having it being taken as gospel. Even though simulations are not always right, they are far, far better than they used to be and have kept up quite well with the growth of complexity and difficulty in the designs.
[QUOTE="3. With pure digital sources, the analog sampling stage can be eliminated and replaced with computational conversion of the source data stream directly to the Class D pulse-width modulated (PWM) output drive. The signal path is otherwise purely digital and thus distortion-free; the only potential source of analog distortion is the single, simple output stage.[/QUOTE]
I am not familiar with anyone actually being able to implement this- my understanding is that PWM is mathematically intractable in such applications. Do you have any citations?
 
ConradH said:
I repair guitar amps and I'd sure rather fix a broken analog amp, SS or tubes, than SMT class D. I do 'em, but I don't have to like it.
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This is the #1 reason why I highly dislike Class D amplifiers. D stands for disposable, full of IC chips and SMT. Discrete components for me, or why buy throwaway? And yes, fine for subwoofer users, I prefer Class A or well executed Class AB amplifiers properly designed, engineered, and built to last.
 
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