Really? The Lava lamps need heat from the incandescent light bulbs?I had a cartridge that cut out like that. I applied a soldering iron to each of the 4 pins and it stopped acting up. One of the leads was not fully soldered into the pin.
It may be that your tonearm wiring and turntable cables might almost do CD-4 instead of the cartridge.
Also, if the tonearm is improperly mounted, you could get tracking error in the inner grooves.
The lava lamps need the heat from the original bulb.
Hmm... my formal education is in physics.There are many who do not understand the science behind such products.
I have seen people looking for LED replacements for bulbs from E-Z Bake ovens and Himalayan salt lamps too.
1. Literally what I was recommending. LOL. We're on the exact same page there. Best $45 dollars I ever spent on my TT setup.(1) I use an Onzow stylus cleaner. It's a gel pad into which you drop the stylus a few times and that's it.
(2) I thought line contact stylii are by definition Shibata. I figure the rest of the cartridge will make a difference as well since you need about 30Khz bandwidth. I think the turntable cables also have to be low capacitance otherwise they act as a filter.
(3) I own a Linn with a Lingo. I don't need no stroboscope. I just sit down and listen to the pace of the music.
(4) The NAD has a 15VDC power input. Perhaps a high quality analog power supply would be better than the wall wart. Use a long cable and ensure it doesn't have any digital PWM circuits in it. IE: no switching power supply.
(5) AC filters are a panacea. It's best not to produce the nasties to begin with. Filters do strange things to current flow capacity, phase shifts, etc. I suppose one of them power regenerators might make sense but at that point you are looking at pretty high costs.
(6) I've been in projects where the power supply design consumed fully 40% of the total R&D cost, including the firmware! Power Supplies are very hard to do correctly.