like Syntax, i have the Acoustic Revive RL-30 MkIII disc demag unit. i also have the Walker Talisman, a RTR tape head demag unit, and also a Tourmaline bead Hair Dryer device with some special tweaks.
all these devices have a positive effect on Lp play. easy to hear, repeatable benefits.
by far the item with the largest benefit is the Tourmaline Hair Dryer. unfortunately it also only has about a 15 minute window of full effect. so for a 33rpm Lp it won't quite last the whole side.
my personal opinion is that these effects are not related directly to the Lp itself being magnatized. it has more to do with the level of static build up on the surface of the Lp and how effectively any device neutralizes that static and for how long. possibly the degree of neutralization is inverse to the duration. i say this based on the reaction of my son-in-law the Phd in Physics who was doing some lab work for his Doctoral Thesis 4 years ago while i was messing with this stuff. his part of the lab work had to do with getting the proper readings from some test gear and he had found that by demagnatizing the glass surface of his test gear he could get more accurate readings. he said that the static held the micro-dust onto the surface of the glass and when de-mag'd the dust released temporarily and the readings were more accurate. his guess was that the same process accounted for what we heard.
he also said that if someone would fund the research he could possibly prove the guess in a lab.
all these devices have a positive effect on Lp play. easy to hear, repeatable benefits.
by far the item with the largest benefit is the Tourmaline Hair Dryer. unfortunately it also only has about a 15 minute window of full effect. so for a 33rpm Lp it won't quite last the whole side.
my personal opinion is that these effects are not related directly to the Lp itself being magnatized. it has more to do with the level of static build up on the surface of the Lp and how effectively any device neutralizes that static and for how long. possibly the degree of neutralization is inverse to the duration. i say this based on the reaction of my son-in-law the Phd in Physics who was doing some lab work for his Doctoral Thesis 4 years ago while i was messing with this stuff. his part of the lab work had to do with getting the proper readings from some test gear and he had found that by demagnatizing the glass surface of his test gear he could get more accurate readings. he said that the static held the micro-dust onto the surface of the glass and when de-mag'd the dust released temporarily and the readings were more accurate. his guess was that the same process accounted for what we heard.
he also said that if someone would fund the research he could possibly prove the guess in a lab.