A nice old paper on resonances and turntables that I had found concise back when I read it. http://www.theanalogdept.com/images/spp6_pics/TT_Design/MechanicalResonances.pdf
Have them and an WTA is on my to do list ...🙂
Figures , limited bandwidth and dynamics would be your choice, my system is as soft as powder puff when the recording is and takes you there when it isnt ...
🙂
Yes and T also took a shellacking here when his dac measured poorly , yet won the subjective war ...
Yep, tells me alot , get the bass wrong and every instrument known to man sounds wrong , any system only good to 100hz is a waste of time unless listening to you toob ...
Easy dutchie , clouding the issues with facts again ....🙂
Last edited:
The mass along the arm is minimal. Most of the mass is at back around the point where you apply the springs. Those minimal modes are irrelevant in practice. The arm vibrates more in its original set-up. If you want to improve further, as I did, you can add mass where you usually bolt it to the base. There are several types of elastic wires you can use for this application.
Yes, a triangle sounds ridiculous unless you have a throbbing 18"er accompanying it ..
P.S.
The trade-off is it becomes really manual and sensible initially. You can't lift the arm with the lever but it is quite easy to get used to it.
The trade-off is it becomes really manual and sensible initially. You can't lift the arm with the lever but it is quite easy to get used to it.
Shouldnt let your ignorance cloud the issue Frank , a statement like that shows a total lack of what i'm discussing ...
The other aspect of bass 'extension' is that many subwoofers are largely effects boxes: the hardest notes to reproduce cleanly for a transducer are the lowest bass notes, go below 100Hz and the levels of 2nd and 3rd harmonics tend to go through the roof - so what you end up hearing from those ultra low notes is actually the distortion tones, lying above 100Hz - creating a very 'rich' sounding bass. An absolutely pure note below 100Hz is actually very boring to listen to - I wonder how many people have done the exercise of driving their bass speakers with pure tones, and listening for the variation of distortion harmonics building as the level of sound rises, it's quite easy to distinguish each harmonic coming on song ...
As another exercise, brickwall filter a bass heavy recording so there is zero above 100Hz waveform content, you have a musical track with a 20-100Hz bandwidth. Play this through your system at various SPLs, and record it with any simple device - I wonder what the spectrum of above 100Hz sound content in the room will be? 😉 ...
As another exercise, brickwall filter a bass heavy recording so there is zero above 100Hz waveform content, you have a musical track with a 20-100Hz bandwidth. Play this through your system at various SPLs, and record it with any simple device - I wonder what the spectrum of above 100Hz sound content in the room will be? 😉 ...
Last edited:
I did that in 77 with my hartley 24 inch and later in 78 with my EV 30", large diameter woofers as such are never ran above 60 hz , 18" 85hz ...
You should get out more often Frank , I'm sure there are serious philes in Oz , get out and hear some ...🙄
I'm afraid the "serious" ones are after other things than I am - I went through that exercise some years ago, with the main hifi club in the city - visiting many people's homes in the process. At times there were glimmerings of good sound coming through, but there were also plenty of, obvious, problems. YouTube clips demonstrate that the situation is little better in other parts of the world, the infrequent higher quality setups merely reinforce the relative lacking of the rest ...
Do you really think you can judge the quality of a high-end audio system from a YouTube clip made with a camcorder mic? 🙁
It's just a source>amplification>trasduction>air travel>caption>compression>encoded transmission>decoding>amplification>trasduction>air travel of the sound
Once you know it...🙂
Once you know it...🙂
Most certainly. A large part of the chain is consistent from recording to recording, being the typical camcorder mic through to the speakers attached to my PC, in other words the 'filter' is constant from one item to the next. So you can listen to recordings of live, acoustic music being played, people talking in the background or directly to the camera - these are the sound references, benchmarks, to which the playback of audio systems can be compared.
Since in my book the aim of an ambitious system is to mimic the quality, lack of distortion of live sound that's how a well performing audio system should present itself - in the clip. Of course, the majority don't - they sound like a 'hifi', the sound is obviously derived from audio playback -- they've failed at the first hurdle.
If you have to be actually in the presence of the system, and vigorously 'analyse' the sound to decide what the quality level is - well, as far as I'm concerned that's well short of a pass mark ...
Since in my book the aim of an ambitious system is to mimic the quality, lack of distortion of live sound that's how a well performing audio system should present itself - in the clip. Of course, the majority don't - they sound like a 'hifi', the sound is obviously derived from audio playback -- they've failed at the first hurdle.
If you have to be actually in the presence of the system, and vigorously 'analyse' the sound to decide what the quality level is - well, as far as I'm concerned that's well short of a pass mark ...
Frank,
Acoustic bass, piano, tympani, cello, male voice, (the list goes on) all sound better with the bottom two registers done right.
Even with single 12" sub and good crossover where sub is indeed producing prodigious amount of distortion, the setup removes what invariably becomes nasty levels of intermodulation distortion from mains speakers.
Really is no substitute for driver area for getting it right.
Acoustic bass, piano, tympani, cello, male voice, (the list goes on) all sound better with the bottom two registers done right.
Even with single 12" sub and good crossover where sub is indeed producing prodigious amount of distortion, the setup removes what invariably becomes nasty levels of intermodulation distortion from mains speakers.
Really is no substitute for driver area for getting it right.
That's beautiful, I have seen several custom table/arm/cart setups that are the ultimate in audio fetish totems, or maybe altars of worship.
We agree on something, I rarely see a room setup and treated well enough to get the information that is there in the lower registers. The usual effect is to hear objects on the dinner table, windows, etc. sympathetically vibrating on loud passages. I have only heard it almost completely right once.
So you're saying that a camcorder mic, YouTube compression and PC speakers have higher resolution than good hi-fi equipment? Why do you even own a hi-fi then?
I also think that in a you tube picture you can hear depth and brightness of a system.
It will not be the same but you can hear if it is bad or good.
I did watch a lot of turntable movies on youtube some you hear the warmth/ coherence of the system. And from others you can hear the sound is not balanced.
I use a book book pro internal speakers some times I use sennheiser headphone.
Last edited:
I believe more apt generalization is that all DIY members suffer from vibro-acoustic disease. Disease presents with broad spectrum of symptoms, including but not limited to delusions that vinyl performance capabilities are better than CD performance capabilities.
It will have to suffice until we get a Dutchie chillumpipe center ...🙂
Ok, so you don't get out often, i get it ........ 🙂
Hilarious ..
- Status
- Not open for further replies.