Anyone try Synergistic Research PHT...


transducers on their cartridge/headshell? Wondering if this really improves sound, and which type do you use. Thanks.
hiendmuse
Sbayne, I am not dismissing the PHT. In fact, I wrote above that since one can have a 30-day trial period, I'd support the decision to give it a shot. Glad your happy with the PHT; as I also said in my first post, I do know that others besides yourself are also pleased with it. I am a skeptic by nature, when it comes to accepting anything on faith alone.

Oh, and not to beat a dead horse, but I do not agree that there is no listener bias, if one can return the item under review. There is ALWAYS subconscious bias of one kind or another in any subjective judgement. Someone like me is probably biased against hearing a beneficial effect, in fact. I did not think power cords could possibly make any difference to the sound of an electrostatic speaker (connecting the ESL bias supply to AC), until I finally did a listening test in my own system; I was wrong. However, what I found was that sonics only poorly correlated, if at all, with cost of the AC cord.
Sbayne, how is it attached - did you check to see how much it added in weight and did you make adjustments for such.
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.