I took a ride on motorcycle a month ago. 2.5 60 second time. Damn the new Vmax is ludicrous. If you're doing 20mph you can be doing 100mph by the end of the bock. Yes, sure, there's some supercars that beat it's time, but they also have a huge traction advantage from a stand still.
I made the mistake of not closing the helmets visor all the way (I like air)... I was blinded by the water gushing from my eyes in response to the acceleration.
I made the mistake of not closing the helmets visor all the way (I like air)... I was blinded by the water gushing from my eyes in response to the acceleration.
You would like the Hayabusa turbo, then.
https://www.youtube.com/watch?v=Uqs3AqZNUoY Accelerates so hard the front wheels dont touch ground until 140 mph !
https://www.youtube.com/watch?v=5BT2JjzHa-c
horse power to wgt ratio?
-RNM
https://www.youtube.com/watch?v=Uqs3AqZNUoY Accelerates so hard the front wheels dont touch ground until 140 mph !
https://www.youtube.com/watch?v=5BT2JjzHa-c
horse power to wgt ratio?
-RNM
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I might... I can't say it's good for me, but if something has a top speed I want to get there!
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I would be stopped on a two lane back county road near by my house and tell the passenger to lean forward and put their hands on the dashboard and try to keep them there. It always slammed the passenger back into their seat.
-RNM
I always new you had that mean streak in you. smiling and
laughing when they hit???
Muscle Cars are a funny thing. A gal that I really like and
was built for pleasure, I gave her the ride of her life. When
we stopped She got out, yelling at how f***ing irresponsible
I was and that I could have killed her or someone else.
Never saw her again.
That the big gal all around rode in it and loved it. I swear she
would cum in seconds on acceleration, over and over again.
I really wasn't interested in her as we were friends. It made
her into something like a horny female elephant. I couldn't
keep her away....no matter what.
John, Thank you for letting cars be ok. Night all.
Tonight I am getting close on my passive LRC LPF for CD player HF output noise reduction.
Using parts from my home stash.... ripple is about +/- 1dB... can flatten that more with R change.
Put this in a box and hook it up and listen and then measure.
THx-RNMarsh
If I'm seeing this right there is +3dB at 20khz and this has to be audible. 😕
I think every period of one's life has its ideal vehicle. When you are young, you go all out for small size and low weight to make the best of it, next you start paying attention to the design, fit and finish, and you end up by wanting comfort, but still with some pizzazz.
The onky constant in my car life was and still is Maserati. While not slouches, they are not as wild as Lambos and Ferraris, as their philosophy is it's not so much how fast you get there as long as you get there in style. Right now, if I could, I'd buy a Ghibli saloon, with a 3 litre turbo engine delivering 420 bhp, with all wheel drive. Besides, Maserati Indy was the most beautiful thing on four wheels I ever saw, bar none.
The onky constant in my car life was and still is Maserati. While not slouches, they are not as wild as Lambos and Ferraris, as their philosophy is it's not so much how fast you get there as long as you get there in style. Right now, if I could, I'd buy a Ghibli saloon, with a 3 litre turbo engine delivering 420 bhp, with all wheel drive. Besides, Maserati Indy was the most beautiful thing on four wheels I ever saw, bar none.
My take on automobiles is a little different having a bit more than a million miles under my belt. Never had a speeding ticket stick. Never been at fault in an accident. Have survived, so far, impacts up to just under 40 MPH.
So my take is a comfortable car that is agile to avoid the other guy and has good safety features.
One issue found recently is better gas milage tires blowout much easier. Twice now in the last 50,000 miles. So back to real tires.
Oh yeah last major hit I as usual was buckled in, the other guy wasn't. He made it to the hospital, but that was it. He left via the loading dock.
So my take is a comfortable car that is agile to avoid the other guy and has good safety features.
One issue found recently is better gas milage tires blowout much easier. Twice now in the last 50,000 miles. So back to real tires.
Oh yeah last major hit I as usual was buckled in, the other guy wasn't. He made it to the hospital, but that was it. He left via the loading dock.
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Tonight I am getting close on my passive LRC LPF for CD player HF output noise reduction.
Using parts from my home stash.... ripple is about +/- 1dB... can flatten that more with R change.
Put this in a box and hook it up and listen and then measure.
THx-RNMarsh
Richard- Application is really important for these concepts. If you are using this with an early non-oversampling DAC setting the FC low is important but 20 KHz may be too low since the sample rate is 44.1 KHz and the images are all above 44.1 KHz. More modern DACs oversample so the actual frequency you need for the low pass can be much higher.
Further, adding this to the outside of a DAC may be "too little, too late" since the "damage" has already been done internally.
However I have had really positive results using a passive LC filter to remove the image before the external circuitry. I have always thought that an active filter to remove the HF stuff that opamps and analog circuitry has problems with was naive.
Images start from around 22.052kHz (assuming the input rolls off at 20Hz). A 20kHz rolloff for a passive filter may be too high - depends on the filter order and whether reconstruction is the aim or merely a nice sound.1audio said:If you are using this with an early non-oversampling DAC setting the FC low is important but 20 KHz may be too low since the sample rate is 44.1 KHz and the images are all above 44.1 KHz.
If I'm seeing this right there is +3dB at 20khz and this has to be audible. 😕
no it is +1db at 20KHz, as is shown.
-rnm
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Further, adding this to the outside of a DAC may be "too little, too late" since the "damage" has already been done internally.
However I have had really positive results using a passive LC filter to remove the image before the external circuitry. I have always thought that an active filter to remove the HF stuff that opamps and analog circuitry has problems with was naive.
Hi Demian,
A few pages back was the data output and that this high energy above 20KHz at analog output would be amplified further by the next preamp/PA. Keeping the HF stuff out of the rest of the gear can not hurt and that is the goal here. Especially if those amps cannot amplify the HF junk with low distortion .... such as VFA types. which is a possible explanation as to why certain amplifier design philosophies sound better with CD players.
Thought I would try 55Khz as a good starting point.. and can be easily changed with this external metal box which the passive LPF is being put into.
THx-RNMarsh
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DF96- Your right, I was too quick on this issue.
Richard- You have the tools. look at the output spectrum of the DAC's and see what you are dealing with. Its pretty easy to check and most modern DAC's are really effective brick wall filters at Fs/2. What I see is stuff above the actual effective internal sample rate which may be 384 KHz or higher. But I have little interest in NOS technology so dealing with images above Fs/2 is not a problem I deal with.
Richard- You have the tools. look at the output spectrum of the DAC's and see what you are dealing with. Its pretty easy to check and most modern DAC's are really effective brick wall filters at Fs/2. What I see is stuff above the actual effective internal sample rate which may be 384 KHz or higher. But I have little interest in NOS technology so dealing with images above Fs/2 is not a problem I deal with.
DF96- Your right, I was too quick on this issue.
Richard- You have the tools. look at the output spectrum of the DAC's and see what you are dealing with. Its pretty easy to check and most modern DAC's are really effective brick wall filters at Fs/2. What I see is stuff above the actual effective internal sample rate
You are going over old ground... i am well past that. Didnt you see the output spectrum I showed here? There are also idle tones seen. I would like to think none of us have to listen to such gear... but apparently, we do. My CD player tested for extraneous HF noises is the Alesis Mastering CD recorder.
THx-RNMarsh
no it is +1db at 20KHz, as is shown.
-rnm
As shown it is at least +2.5dB at 20kHz (re 1kHz) as the graph is 2dB/div
I don't think. Superposed the scale to the average level, witch is somewhere behnd -0.5dB, it shows the peak is exactly at +2dB more than the average level at 1000Hz. Not a big issue.As shown it is at least +2.5dB at 20kHz (re 1kHz) as the graph is 2dB/div
... it shows the peak is exactly at +2dB more than the average level at 1000Hz. Not a big issue.
😀
I don't think. Superposed the scale to the average level, witch is somewhere behnd -0.5dB, it shows the peak is exactly at +2dB more than the average level at 1000Hz. Not a big issue.
It will be slightly better after I build from bread-board to something usable. But even if I could hear it... it would sound a tiny bit brighter with anything that high up. But bright sound not sound the same as distortion which I am listening for.
THx-RNMarsh
It will be slightly better after I build from bread-board to something usable. But even if I could hear it... it would sound a tiny bit brighter with anything that high up. But bright sound between 10 and 20 Khz is not the same as distortion -- which I am measuring and listening for.
THx-RNMarsh
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