Miller Carbon. Maybe my question wasn't well phrased; I'm not questioning our ability to hear ultrasonic content, or the effect it might have on the 20-20k frequencies. My question asks "isnt (all) the ultrasonic content stripped out in the A-to-D conversion, and if so how would a supertweeter recover what was stripped out"?
Townshend Maximum Supertweeters
Yes, Maximum. I don’t come up with the names, I just review the stuff, okay? ;) And I got em because everyone keeps telling me I should, and once again they are right. Whew! That was easy!
Kidding! We will now laboriously delve into why you cannot live without these tweeters, that you can’t even hear.
For sure I can’t. My hearing rolls off somewhere north of 15k. If that. These things extend to 90k. Why? What difference can it possibly make?
Who knows? And since when has that stopped me?
So out they come and what have we here? Two heavy black bricks, with a screen on the front and a couple binding posts on the back. In between the posts is a little knob you use to turn them off and set the levels. On the bottom are rudimentary rubber dimple feet. Guess I was expecting Pods or something, this being Townshend. No such luck.
They go on top of the Moabs. Well there is already a BDR Shelf on top, and a HFT dead center right where this thing is supposed to go. Moving HFT even an inch changes the sound so executive decision, the Maximum Supertweeters go just outboard of the HFT. They are first just placed there not even connected, just in case this somehow messes with the sound. It doesn’t.
Okay so now you need to know my system is all messed up. No, not the usual mess I mean really seriously messed up. No turntable. Chris Brady has the bearing for some resurfacing and stuff. So we are slumming with the heavily modded Oppo. Not to fear, Ted Denney sent me some of his latest Atmosphere X (review to come) which with the right tuning bullet the Oppo now sounds....digital. Oh well. KBO.
The usual: Demag. Warmup. Listen a while. Hook em up. What level? Who knows? Moabs are 98dB. How ya gonna know anyway? How can it even matter? How do you even set the level of something you can’t hear? Level 3, good as any. Plug em in. No change. Not the slightest peep out of these things. Total dud. Knew it. Sit back down.
What the...? No way. There is not the slightest hint of top end coming from these things. They may as well not be there at all. Except the whole presentation is somehow different. Top to bottom. No way!
I get up and turn the black magic off. Sit back down. Crap. Flat, grainy, digital. Turn em back on. Deep, liquid, analog.
No, not analog like my turntable. They are just supertweeters after all not magic. But way more analog than it was. More dimensional, more solid, more liquid detailed. More black between the notes, and in the black it is now easier to hear the natural acoustic decay. I do NOT want to go back to listening to CD without this! I cannot wait to hear it with my table.
And I haven’t even had time to get them dialed in yet!
Kidding! We will now laboriously delve into why you cannot live without these tweeters, that you can’t even hear.
For sure I can’t. My hearing rolls off somewhere north of 15k. If that. These things extend to 90k. Why? What difference can it possibly make?
Who knows? And since when has that stopped me?
So out they come and what have we here? Two heavy black bricks, with a screen on the front and a couple binding posts on the back. In between the posts is a little knob you use to turn them off and set the levels. On the bottom are rudimentary rubber dimple feet. Guess I was expecting Pods or something, this being Townshend. No such luck.
They go on top of the Moabs. Well there is already a BDR Shelf on top, and a HFT dead center right where this thing is supposed to go. Moving HFT even an inch changes the sound so executive decision, the Maximum Supertweeters go just outboard of the HFT. They are first just placed there not even connected, just in case this somehow messes with the sound. It doesn’t.
Okay so now you need to know my system is all messed up. No, not the usual mess I mean really seriously messed up. No turntable. Chris Brady has the bearing for some resurfacing and stuff. So we are slumming with the heavily modded Oppo. Not to fear, Ted Denney sent me some of his latest Atmosphere X (review to come) which with the right tuning bullet the Oppo now sounds....digital. Oh well. KBO.
The usual: Demag. Warmup. Listen a while. Hook em up. What level? Who knows? Moabs are 98dB. How ya gonna know anyway? How can it even matter? How do you even set the level of something you can’t hear? Level 3, good as any. Plug em in. No change. Not the slightest peep out of these things. Total dud. Knew it. Sit back down.
What the...? No way. There is not the slightest hint of top end coming from these things. They may as well not be there at all. Except the whole presentation is somehow different. Top to bottom. No way!
I get up and turn the black magic off. Sit back down. Crap. Flat, grainy, digital. Turn em back on. Deep, liquid, analog.
No, not analog like my turntable. They are just supertweeters after all not magic. But way more analog than it was. More dimensional, more solid, more liquid detailed. More black between the notes, and in the black it is now easier to hear the natural acoustic decay. I do NOT want to go back to listening to CD without this! I cannot wait to hear it with my table.
And I haven’t even had time to get them dialed in yet!
- ...
- 133 posts total
Understood, and agree. Convert is a better term here than recover. My assertion is that a supertweeter could only provide an improvement when the mastered sample rate exceeds 44.1, where the filtering can be applied more gently and allow some of the hypersonic frequencies to remain. It couldnt provide any improvement with 44.1khz-mastered CD's, because there is no hypersonic signal content on the CD. Analog - totally different story, but i do digital 100%, and most high res digital is a misrepresentation, so I'm not seeing how supertweeters provide any enhancement at this time for an all digital setup. |
Not only digital, but based on the chart none of the instruments listed produce sound in the range above 20khz either which is one of the reasons why redbook CD was designed the way it was and most systems only shoot for out to 20khz. https://i.pinimg.com/originals/8b/4a/6f/8b4a6fd7b8d65711eed41850a194284e.jpg So there is not even any music there above 20khz for the transducer to reproduce regardless of format. Just noise. Maybe with a synthesizer or a dog whistle. Looks like the fishing hole is empty over 20khz so if you catch something up there it isn’t a fish. |
Still not getting it. Some engineer, or marketer, told you something, the number 44.1 stuck in your head, and now it is still stuck there even after new information comes along that should have you questioning the validity of all you have been told. Yes I am deliberately being provocative. That is my job. To try and get people to think. For themselves. Not at all easy, but the great thing is it sometimes feels like I have the field all to myself. No no no I know that is not true. But it sure feels that way. I mean, just look up ^ pure wrote regurgitation, with an insult thrown in for good measure. An insult, for the record, is not an argument. |
- 133 posts total