Innocent question, was glupson sent by Audiopoint? Just curious. 🙄
Talk but not walk?
Hi Guys
This isn't meant to start a fight, but it is important to on lookers. As a qualifier, I have my own audio forum where we report on audio issues as we empirically test them. It helps us short cut on theories and developing methods of listening. We have a wide range of systems and they are all over the world adding their experiences to the mix. Some are engineers, some are artist and others are audiophiles both new and old. One question I am almost always asked while I am visiting other forums, from some of my members and also members of the forum I am visiting is, why do so many HEA hobbyist talk theory without any, or very limited, empirical testing or experience?
I have been around empirical testing labs since I was a kid, and one thing that is certain is, you can always tell if someone is talking without walking. Right now on this forum there are easily 20 threads going on where folks are talking theory and there is absolutely no doubt to any of us who have actually done the testing needed, that the guy talking has never done the actual empirical testing themselves. I've seen this happen with HEA reviewers and designers and a ton of hobbyist. My question is this, why?
You would think that this hobby would be about listening and experience, so why are there so many myths created and why, in this hobby in particular, do people claim they know something without ever experimenting or being part of a team of empirical science folks. It's not that hard to setup a real empirical testing ground, so why don't we see this happen?
I'm not asking for peoples credentials, and I'm not asking to be trolled, I'm simply asking why talk and not walk? In many ways HEA is on pause while the rest of audio innovation is moving forward. I'm also not asking you guys to defend HEA, we've all heard it been there done it. What I'm asking is a very simple question in a hobby that is suppose to be based on "doing", why fake it?
thanks, be polite
Michael Green
www.michaelgreenaudio.net
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- 2164 posts total
@geoffkait,
Solution: I really enjoy the big sound and dynamic headroom generated from “big honking” transformers and high power. There is no need to relocate it. For the DIY or serious learner, simply remove the rubber gaskets and mechanically ground it to the chassis (there is a cone for this application). The majority of mechanical and electromechanical noise will transfer at high speed to the chassis. Then mechanically ground the chassis to the racking mass to complete the high speed resonance transfer process and you are rewarded with more quality of sound, a cooler running temperature and most importantly - layered harmonics and dynamics that will soar through the roof! No big capacitors that vibrate and shift the phase. Solution: Mechanically ground the caps too! The transformer and power supply are the primary culprits for forming resonance. The caps as well as all key parts (outputs and circuit) should also be grounded separately to the chassis. This leaves each part to independently vibrate on its own accord without the influence of vibration affecting other parts and transfer resonance to chassis mass as it forms. The component operational efficiency will increase substantially without affecting the sonic character of the amplifier. Phase issues are a direct result from resonance build up without an effective mechanical grounding plane. No large chassis that vibrates. Really? Even small chassis vibrate. Any device that demands AC or DC power to operate will vibrate and form resonance but you already knew that. No fuse to worry about. Never had any issue with fuse protection for safety reasons. Minimizes internal wiring, about 50% of which is soldered in the wrong direction anyway. Plus there is simply LESS things to distort the signal or vibrate. GK, you can manage vibration - right? I would not know what music would sound like without distortion properties. After all that is how tubes establish their sonic profile as well as musical instruments - they distort! In a perfect world with no vibration or distortion would music have sound? Lightweight components are easier to isolate from vibration. We cannot comment on isolation as that was part of our past where those theories have long played out over time. I know isolation techniques; specifically springs always had issues dealing with various component weights. Need a thin spring for this two pound product and require a different version for that hundred pound device and an automobile sized spring for that three hundred pound speaker has always been the stumbling block. We no longer deal in that realm as weight is never an issue with our technology. In your opinion GK, are we walking yet? My personal tastes require a sound system that generates both mind and physical stimulus. I need to feel the kick drum in my chest and the bass guitar moving my feet where headphones do not satisfy my personal listening requirements. There are no industry related findings or proof that differences between high mass and limited mass systems exist. They all vibrate alike. It appears to be just personal opinions that are being presented here where ‘solutions’ on the other hand appear to be in limited supply. Give me that “big honker” of a transformer, lots of power with a 4 kHz snap in a kick drum and I’ll vibrate the world… ⌣ Robert |
To jf47t who plays both sides of the fence. As the trolls on this thread become more desperate as well as former short term employees of Michael's (guys who didn't cut the grade) they are talking without actually walking. Guess you’re attempting to spout off at Peter or me in referencing your difficulties understanding why we are no longer employees of that guy who has only twenty-five (25) year old images of himself posted on his site? According to your discrediting statement we talk and do not walk however in our meager defense, please examine our list of talkers or whatever name calling you wish to provide today. We are a professional organization in comparison to your extremely limited current vision of audio related talent. Here is a list of our company “runners”. http://starsoundtechnologies.com/aboutUs.php Now please show us yours… Star Sound |
audiopoint, Aside of yours and Michael Green's disagreement here, it Is interesting to see your point regarding tuning. To those who have not jumped on board, and probably never will, it shows some other view. I, personally, wish I had more technical knowledge and time to discuss it deeper, but I am glad I can learn your points. Thanks for participating. |
- 2164 posts total