geoffkait,
This is reasonable since it is your idea, after all. |
sabai OP
geoffkait,
This is reasonable since it is your idea, after all.
What is reasonable and what is my idea? What are you referring to? Perhaps you did not understand my question, difficult to say.
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Bensturgeon,
You stated at the beginning of this thread, "Very rewarding to DIY in this hobby where retail mark ups can be in the thousands of percent. !!"
I could not agree with you more. Especially when you look at the markup of these little cone things that you put on the walls and inside components. The price they are charging is what incentivized me to try to make my own. I am really glad I did -- for about $1 apiece. |
geoffkait,
You stated, "...
which one of you knuckleheads is going to be the first one on your block to knock off the Graphene contact enhancer?"
I suggest you be the first knucklehead to try this experiment since it is your idea. |
sabai OP
geoffkait,
You stated, "... which one of you knuckleheads is going to be the first one on your block to knock off the Graphene contact enhancer?"
I suggest you be the first knucklehead to try this experiment since it is your idea.
Ouch! Good one. I was actually more interested if anyone had used the tiny copper bowls in other rooms, you know, like Franck Tchang suggested.
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Sabai, you should try it. Trust me. And trust Franck Tchang.
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Rooms full of little bowls definitely do not pass my WAF |
geoffkait,
One day when I am ready. I trust my own ears. |
toddverrone,
If your wife has a chance to listen she may change her mind. |
@sabai damn, I tried some magnets I had laying around: super strong, taken from an old MacBook.
They made a very noticeable difference. For the better, so far, but I like to listen for a while to truly hear the strengths and weaknesses of any change.
I put the magnets on the IEC connectors and on the RCA connectors between my amp and pre on the pre end. So far they're magnetically attached to the cable clamp screws. I'm heading to Walmart to buy more and some Blu tack so I'm not limited to placements on set screws.
Thanks for the ideas! |
toddverrone,
You're welcome. I'm glad to hear this is working for you. What size and strength are the magnets you are using? Are they neodymium or ferrous? |
Not sure about strength, but they are definitely neodymium. They're only 1/2"long and 1/8" square in cross section |
toddverrone,
I use the 1/2" x 1/8" discs (as well as others). So, yours should be comparable. Hopefully they are N48 or N50. The store should know. Have you tried putting a packet of 12 both under and above your breaker? |
@sabai the magnets I'm using came from an old laptop that we cannibalised for parts. They've been sitting in a drawer for 4 years. This is a much better use! So there's no 'store' to ask. Walmart didn't have any neodymium magnets.. So I dug through my kids' geomag building toys (plastic rods with neodymium magnets on the ends and ball bearings to use as connectors) and found 4 little neodymium cylinder magnets that fell out of the plastic housing. I put them on my RCA connectors between the pre and amps, on both ends this time.
I'll have to order some online for the breaker panel. But I'm skiing next week, so it'll be a while before I report back... |
Had one recently and can't get more excited!
Restored Mac 1900 receiver -- GIANT KILLER
Purchased one at craigslist $180. After diagnosing unit at home of the craigslist seller, I talked down price from asked $400, because I spotted weak Left channel had lack of bass in both mode with or without loudness. One output transistor found weak with trivial diode test, but replaced all transistors to have them all same brand. Certainly checked proper voltages across driving transistors to make sure that they operate properly. Also sound-tested signal output out of driving transistors with specially modified headphones for signal tracing. After final assembling of transistors, I was still checking if they run too hot and after 3 hours of continuous playback I was able to touch transistors with bare fingers safe... Jumping onto this discussion back and wrote post of my own as well just because I'm super-excited that I did NOT resell it and still enjoying it so much! This receiver gives you nearly EVERYTHING for relatively small to medium room including clarity, precision, instrument separation and superb imaging. |
@czarivey your post made no sense until I looked at the title of the thread. Ha! DIY indeed. Well done and enjoy! |
toddverrone,
Thanks for letting me know.
czarivey,
Congratulations! |
Best bang for your buck in audio?
1. A better than decent preamp.
2. A better then decent amp.
3. A better than decent cartridge, tonearm, turntable.
4. QUALITY SPEAKERS. No other piece or component can make up for less than decent motors.
5. DECENT interconnects and speaker cables. NO, I am not talking about those uber expensive crazy cables, just what is better than the usual $9.99 crap. Hell, you can construct decent stuff if you are handy with a soldering iron that smokes more than half what you can buy for 10 times as many $'s. jmho. |
halvis,
Please note that the OP is about DIY. |
toddverrone
Geoff- I will say that I’d try little bowls if there was a believable explanation for how they work and what they do.. I’m not a total reductionist, so I don’t shoot things down if they aren’t ideas in the mainstream, but my mind does need something to go on, so I can figure out how to implement. Though I suppose it would be pointless since I can’t imagine decorating my house with copper bowls.. My lovely wife let’s me do what I want with the music room, but she wants input on the rest of the house.
The tiny little bowls are acoustic resonators and work much like small Helmholtz resonators by dissipating energy when placed in locations of very high sound pressure, such as on the wall at first reflection point or in a room corner. Anywhere there is a SPL peak much higher than the average SPL in the room. As I’ve mentioned on this thread at least twice the best way to determine locations in the room for the tiny little bowls is by using a SPL meter and a test tone. I find a test tone of 315 Hz to work fine but other frequencies will work too. You can also use Franck Tchang’s diagram which will be fine but not as accurate as my method.
The tiny little bowls also dissipate RFI/EMI. This is because not only is the diameter of the tiny bowl equal to an acoustic wavelength but also equal to an electromagnetic wave length, I.e., RF wavelength. Thus the tiny little bowls are two, TWO tweaks in one! That’s why I hear an improvement in the sound on my headphones - not because of the acoustic resonator function but because of the RFI/EMI dissipation function. Since there is no diagram for where the RFI/EMI peaks are in the room you have to either make a reasonable guess or obtain an EMI/RFI meter. I have so far chosen to place my tiny little bowls in upper and lower corners, one per surface, figuring that all waves behave similarly so will bunch up in room corners.
If you have a speaker system the improvement to the sound will be due to BOTH functions. The reason the sound improves when the tiny little bowls are placed in rooms beyond the listening room, kitchen bathroom, bedrooms, etc. is because RF doesn’t attenuate over distances involved in the house so that reducing RFI/EMI in other rooms reduces RFI/EMI in the listening room and in the house wiring. Whereas acoustic interference from other rooms would be very secondary. But if a room is directly adjoining the listening room then acoustic interference might be expected. I use bowls of several diameters to spread out the operating bandwidth. Better safe than sorry.
Geoff Kait
Machina Dynamica
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geoffkait,
Franck Tchang adjusted a single bowl in the outside courtyard -- not an adjoining room -- and the effects on the music were not subtle, inside the room.
I believe this is a lot more complicated than discovering SPL peaks. And I believe Franck Tchang knew this. Which is why his diagram is so accurate -- at least for starters. You may have forgotten that you stated yesterday in this thread that we should trust Franck Tchang.
Ultimately, I trust my own ears. I have developed a unique sets of devices for walls and components. They are unlike any other resonators -- and they offer stunning results. |
The courtyard example doesn’t contradict what I said. He also placed a bowl in the refrigerator as I recall. I never said this whole thing was not complicated. In fact what I just posted suggests quite the opposite. I never said Tchang’s diagram wouldn’t "work." I said it was a good guide, like my diagram, but you can do better. I realize you don’t wish to entertain such an idea.
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geoffkait,
On the contrary. I have already entertained such an idea -- and I have done better.
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What do you mean? You're such a tease. |
geoffkait,
My discovery is so good I may commercialize it. So, it will remain proprietary until then. |
You are such a tease. Just to point out the diagrams of Tchang's that you value so much are ONLY for his Gold and Silver bowls, as he says. In other words you are using his diagram incorrectly.
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geoffkait,
Since you do not know exactly how I am using his diagram, and to what extent, this is merely speculation on your part. |
Nor care I, now that you mention it. Good luck with all that. |
geoffkait,
If you don't care then why bother eliciting opinions about placements, and then take the trouble to comment, "...
you are using his diagram incorrectly." Seems like a contradiction to me. |
Charlie Chan says geoff comments not so much because he cares about the subject but that he cares to comment. |
jetter,
I agree -- which keeps the commercial aspect of his participation on the forum in gear. |
Hi sabai, I would think any commercial aspect is secondary. |
Did Happy Hour start early today? |
You mean its ended from last night? |
jetter,
I would think the commercial aspect of his participation is not secondary. Everyone knows that geoffkait frequently uses the forum to advertise his company’s products. I do not think we would see as ubiquitous a geoffkait if he did not own an audio company.
This is the kind of situation I think he enjoys best -- when the spotlight is on him. This keeps his commercial agenda in gear. We see this time and again. As long as he makes some sort of comment his oar is in the water. He elicits opinions, then says he does not care. You see, it makes no difference one way or the other. As long as he keeps his oar in the water. It is all about pebbles and clocks. IMHO.
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Getting back to the OP, I mentioned earlier that I have developed something special I am keeping close to my chest, for now. Has anyone else developed any special devices they would like to share, or not (for whatever reason)? |
geoffkait operates like a particular politician who constantly places himself in the spotlight (I won't mention any names). His constant noise says more about him than it does about the topic at hand. I think he needs a magnetic muzzle to muffle his barking.
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abnerjack,
I think your observations are accurate. |
Wow, this site offers psychoanalysis and everything. That's so cool. |
If you look closely, there are simply some very clear observations and they have nothing whatever to do with psychoanalysis. |
Sabai, when are you going to stop talking about me and start talking audio? Just curious. All the really insightful observation notwithstanding. 😬 And if you’re trying to convince me you’re stumbling around in the dark you’re doing an excellent job.
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geoffkait,
I am not trying to straighten you out or convince you of anything at all. Just making some observations that need to be made. When you draw attention to yourself in the way that you do you can only expect this to happen. You are inviting it.
Getting back to the OP, I mentioned earlier that I have developed something special I am keeping close to my chest, for now. Has anyone else developed any special devices they would like to share, or not (for whatever reason)?
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Sabai
geoffkait,
I am not trying to straighten you out or convince you of anything at all. Just making some observations that need to be made. When you draw attention to yourself in the way that you do you can only expect this to happen. You are inviting it.
Sabai, am not inviting anything, especially all of the personal attacks. Do you think this is my first rodeo? Do you think you’re the king loony here? I’m drawing attention to my ideas. My free ideas. You either don’t understand what I’m saying or pretend not to understand as I’ve had to repeat myself many times.
Sabai
Getting back to the OP, I mentioned earlier that I have developed something special I am keeping close to my chest, for now.
So, I guess the answer is no, you won’t be talking audio anytime soon. Good luck with all those commercial "secrets."
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geoffkait,
No need to be so touchy. These are not personal attacks at all. If you look at what is being said you will see these comments are simply observations of fact.
You stated, "
Sabai, am not inviting anything ..." Perhaps you think you aren't, but others may differ on this point. Your perhaps unwitting invitation opens the door to humor, and I am not one to ignore the opportunity for a good laugh when it presents itself in such an inviting manner.
On the other hand, I think your use of such personal terms as "nerds, knuckleheads and king loony" may be taken by some on the forum as descending to the level of personal attack -- on your part. But I do not look at it that way at all. For me, this is simply audio entertainment. A good way to get some laughs -- like an audio sitcom.
Getting back to the OP, I mentioned earlier that I have developed something special I am keeping close to my chest, for now. Has anyone else developed any special devices they would like to share, or not (for whatever reason)?
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Sabai wrote
geoffkait,
No need to be so touchy. These are not personal attacks at all. If you look at what is being said you will see these comments are simply observations of fact.
Observations of fact? You and your Droogies are unable to see the truth. Your observations are silly. Good luck with quest for mediocrity.
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geoffkait,
You stated, "You and your Droogies are unable to see the truth. Your observations are silly. Good luck with quest for mediocrity."
I believe your posting speaks for itself. |
Sabai, why are all of your posts about me these days? Run out of relevant things to say? Maybe time for a time out....😃
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geoffkait,
I guess you must have missed this -- repeated 3 times in the past 2 days:
"Getting back to the OP, I mentioned earlier that I have developed something special I am keeping close to my chest, for now. Has anyone else developed any special devices they would like to share, or not (for whatever reason)?"
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sabai
geoffkait,
I guess you must have missed this -- repeated 3 times in the past 2 days:
"Getting back to the OP, I mentioned earlier that I have developed something special I am keeping close to my chest, for now. Has anyone else developed any special devices they would like to share, or not (for whatever reason)?"
so what? Haven't you been following my comments? Does this mean you have nothing more to say, I mean mean other than to stalk me?
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