I see a common problem with amplifiers that are older that cause some of them to perform dramatically worse than new. The issue is that the knobs and switches that are associated with the low voltage (preamplifier) side of the amplifier can corrode internally. I have seen this problem with JL Audio subwoofers, M&K subwoofers, Parasound amplifiers and… Read more
The lamp in a front projector will shift in color over time more than any other display. To keep the color performance up to the standards it was left in after a professional calibration you can touch up the color of white yourself. I do this about every 200 hours on my projector. I would download… Read more
I have found that the i1 Pro drifts very little with time, but one place you need to watch is how clean the sensor window is. I would carefully use a cotton swab to clean it when you see dirt on the window.