Thank you Roberto!Hola Phil,
Yes, that's a bad sign. When the stat panels start to become flat and muffled, you must, before changing the panels, to do the washing procedure. Many of us, users of ML speakers, have done this with good results. If after the washing procedure are still flat, it is time to think is new panels. Your Aerius is a model at the beginning of the 90s, they are going to get 30 years old. Also, they are a wonderful sounding speakers. The only problem that I see, is the price for a new fresh stat panels. Keep in mind that if you decide to go for a fresh pair of stat panels, they come with a five year factory warranty.
I am sorry to be the one telling you a bad news. Here you can find how to do the stat panels washing procedure: Martin Logan Shower Cleaning PDF
You can download a sound level meter app. I use "Decibel Meter" on my iPhone which is free....but does anyone know is there is any way of actually measuring the difference of the units with a test meter? With a conventional driver you can measure the ohms... does this work for a static panel too?
By pink noise, do you mean a test tone? I have an app on my phone for that, which I can run through the speakers. Will give it a go. CheersYou can download a sound level meter app. I use "Decibel Meter" on my iPhone which is free.
Ideally you want to play pink noise on your speakers, which you can easily do if you can play YouTube or some other source on your system.
You could well be right. Although I have swapped the speakers from left to right and, frustratingly, I think the volume disparity has moved with them. But I still completely agree that the recordings can vary and there are also moments when I suspect it is more pronounced with vinyl than CD... perhaps pointing towards the cartridge and arm set-up. So a test tone through a different aux input should point me in the right direction as I've previously checked the outputs from the power amp and that's certainly matched across the channels. The search continues!It is probably your source material and how it was recorded and mixed. If you can't hear any difference with a test tone and DB meter then you have them equalized as far as volume goes. The next and uncontrollable issue is the recordings you are listening to. I find 70% of recordings I have ever listened to to be mixed at a "fair" level, only about 15% at the great level and 15% is ever mixed and recorded at the freaking awesome level.
Ideally you want to use pink noise instead of test tone to cover all frequencies instead of just one specific frequency.By pink noise, do you mean a test tone? I have an app on my phone for that, which I can run through the speakers. Will give it a go. Cheers