Recent content by Ian AV

It is highly unlikely that an adult can hear frequency to 20k. Only teenagers have any chance of that. It's just the biology of aging. 120dBA for more than an few seconds can cause permanent ear damage. 130dBA virtually guarantees it.

Be careful with high frequency hearing tests, especially with headphones. The tendency is to up the volume to hear, but that's the best way to make yourself deaf or cause serious hearing loss.

Based upon the deposits, doesn't look like water corrosion alone to me. More like saltwater or some other highly corrosive substance is involved.

If your amplifier can't cope with nominal 4 Ohm speakers, then it's replace the amp or speakers which ever is your choice. Otherwise, if you are happy with the combination and the amp can handle 4 Ohm loads then add forced cooling. I had a Quad amp that ran darned hot into 4 Ohms and output was...

The best cable would have zero resitance/impedence and zero capacitance as both have a detrimental effect on electricity and hence sound. What goes in doesn't come out. Screened cables are a must for low level signal cables, but this is a major cause of capacitance. However, some devices expect...