Originally Posted by
David Analog
Let's clarify a few things.
I responded to a direct question by David, with a direct answer. I'm not a Wetsounds guy. I respect Wetsounds but I'm probably more of a JL Audio guy as that is what I use personally. I have one Wetsounds T-shirt though. I'm not an Earmark guy. I have been retired from the industry for over four years now. I just enjoy audio, including marine audio, and perhaps vintage home audio the most. This 'Wetsounds Guys' thing is often used when you don't like the narrative, and you want to discredit the information source. Sorry, but accurate information is still going to flow.
This wasn't an Exile versus Wetsounds subject until Knox made it one. I have provided the identical information about ground loop adapters countless times in every context. I'm not really interested in the 'E' subject unless I see false information or false comparisons.
Now, more about GLAs....Ground loop noise isn't limited to towboats. It is a problem based on the relationship between audio gear. Cars with a ton of steel can still have this problem. Home theater has this problem. Large crafts that mix AC and DC components have this problem. The best solution is always to correct the installation whenever possible. GLAs use transformers. Transformers have inductance. Inductance causes a change in sound quality and most often a roll-off in the high frequency response. I've also heard the bass performance suffer from using cheap $15 to $20 GLAs. Now if you personally do not hear a degradation in sound quality when using GLAs, then by all means use them. But don't argue with what an entire industry knows. If a GLA was a suitable solution, why don't the manufacturers of audio equipment, particularly marine audio equipment, include GLAs in their circuitry? Why doesn't JL Audio offer these? Alpine, Kenwood, Clarion, Sony, Kicker....?
So how about just sticking to real facts.