It is used
Audible Illusions Modulus 3A noise
I purchased the AI M3A, love the sound, do not like the high noise floor - much more noise on one side now after only 10 hours or so of use. Reading through forums I suspect the electro-harmonics tube. Is a louder than normal static noise coming through speakers normally a tube issue?
Thanks for your help!
Kevin
Showing 4 responses by kevinshunt
@viridian I am going to try this, the procedure is outlined in the manual I have. I just think that these electro-harmonix tubes that were in it represent a low cost alternative that perhaps just don't work very well. Anyone have experience purchasing tubes from AI? I see you can purchase from their website. |
@wheezer1 I haven't done any cleaning & not sure exactly sure how to accomplish this, I suppose there are many YouTube videos with those details, do you have any tips? Is this what folks use de-oxit (sp?) for? what implement, like a bottle brush or special brush? Thanks - as you can tell I've not done this before. Kevin |
I spent some time with the lid off & found out of the 4 tubes that one seems ok & the other 3 produce a pronounced hiss. I swapped it to the other side and the hiss changed sides, this was with no sources hooked in. I would suspect amps, amp cabling, or other issue with the M3A had the sound not travelled with those tubes when swapped. I need backup tubes anyway, guess I'm going to search around to see what I can find. I emailed AI but haven't heard back yet - anyone know if the replacement tubes they sell are electro-harmonix? Kevin |