Clarification on Gain:
Russ is absolutely right. Those of you who are running a high gain are not getting deeper. This is an american misconception of gain.
The higher gain on an Explorer will amplify all relative signals more and thus, you will be missing audio information regarding signal strength or 'depth'.
In fact with higher gain, you are 'smoothing' out the audio signal volume of deep targets with all targets and thus smoothing the information you could be getting.
If you want more information in the audio signal - that is - the audio volume to represent the signal strength then run your gain a bit lower.
The gain on the explorer is meant to help people with bad hearing to hear the weak signals by boosting them more.
I prefer the weak signals to sound weak, and thus I get more information on what I am hearing. However, my hearing is good and I use a good pair of earcup headsets.
I run gain about 2 or 3.
However, if your hearing is bad and want to boost all signals, then I would run gain at the preset of 5, no more.
Terry
If you dont believe me then look at your owners manual on page 54 for the chart of signal strength and sound loudness.
