Anyone try Synergistic Research PHT...


transducers on their cartridge/headshell? Wondering if this really improves sound, and which type do you use. Thanks.
hiendmuse
Hiendmuse - I have both the Blue and the Purple. I've used them on my ZuAudio 103 and various Grado Statement and Reference cartridges. The Blue is more to my liking since it presents a more fluid and spacious soundstage. The Purple is more defined and focused which may sound better in a different system or to a person looking for a different presentation. They do slightly change the tracking force of your cartridge so you will want to check that after application.

Lewm - Fair enough and thanks for the cordial response.
Dev, According to the SR website, weight of the PHT = ".001 gm" = 1 mg.
Thus there should be very little effect on tonearm effective mass and only a small adjustment of VTF is necessary after installation. I guess it "sticks" to the body of the cartridge due to magnetics. A theoretical question I have is how can this device INCREASE the intensity of the magnetic field in the gap between the coil and the cartridge magnet? (This is the mechanism by which it is said to work.) Normally, placing a magnetic object within the field of a permanent magnet would weaken its magnetic field. At least this appears to be the case empirically.
Lewm- where in the world did you get the idea that the PHT is magnetic? It is not, so therefore your question about increasing the magnetic field intensity is moot. No manufacturer that I know of would design and market an add on magnet for use with ALL types of cartridges- MM, MI, or MC. The PHT is a mechanical/acoustic transducer ( granted an extremely small MICRO transducer). I have used it with Lyra (MC), Ortofon (MC), Soundsmith (MI), and Benz (MC) cartridges and I can absolutely verify that it does make a discernable impact on the sound quality of the analog playback.
"11-18-14: Lewm
Zd542, The idea of observer (in this case "listener") bias is much older than this discussion. It has long been taken as a given in the design of any study that involves opinion or human judgement of any kind and that purports to be "scientific". When you then add the fact that one has paid for the device under scrutiny, the bias factor is only compounded. We are all guilty of it; one cannot divorce one's judgement from subconscious bias. Thus you could say I disagree with your premise that listener bias is not a big factor in the formulation of opinions put forth in this and many other forums. That said, please note that it was not I who claimed that my quote was the quote of the year. Quote of the year was not my goal, but thanks for that, Phil."

Reading my post again, I think I could have done a better job explaining my point. I'm not saying that listening bias doesn't happen, I just don't think it can be applied in the manner that you suggest. Look at this once more.

'Listener bias is huge, once one has paid good money for a tweak.'

What type of bias? Lets say 2 people that are financially equal (they make about the same money), buy the same expensive tweak. One person can have an attitude like "For $xxx amount of money, this new tweak should really make my system sound great", while the next person may say "$xxx is an awful lot of money, I hope this damn tweak works.". Both are legitimate examples of how listening bias may be a factor in ones judgement of a particular tweak, but they're practically opposite views. Since we don't have any idea of an individual's personality traits, I don't see how any accurate and responsible judgement/recommendation can be made. We don't have any where near enough info, and even if we did, are we qualified to make assessments of this nature? So, my position in all this is to just not go there. To me, it seems like you can do just as much harm, as good, by bringing psychology into all this.

"That said, please note that it was not I who claimed that my quote was the quote of the year. Quote of the year was not my goal, but thanks for that, Phil."

OK. I do note that you didn't ask for quote of the year. Fair enough. But I also note that you thank Phil for calling it quote of the year. This is interesting. Phil's comment may bias your future posts. The question I have, is will this positive reinforcement effect your accuracy? Maybe you'll just guess more often because you subconsciously judge yourself more knowledgeable, or maybe you'll do more research before answering posts due to the new burden placed on you in winning quote of the year. Phil, I'm hoping you keep track of his progress and give us some updates on which direction he's headed. Its all up to you now.