Joe Black:
The Vanquish 540 is actually not a bad little machine...It’s a Equinox jr. It works & sounds similar, just less on iron bias accuracy........Yes, all brands will go through problems especially dealing with electronics!
Yes, all new detectors can have a problem with their electronic circuitry, they search coils design, or with their physical packaging. ..... HOWEVER ....
ALL detectors who have prototype samples sent out to a reasonable number of savvy, experiences field testers to get an honest, in-the-field evaluation to located and isolate problems, both electronic design and physical packaging, and then address those things PRIOR to making a new-detector introduction and release. Not all manufacturers do that. I've been handling prototypes detectors, from several manufacturers, since 1974. I've also bought a new detector for my own outfit, only to find a design glitch that even the manufacturer didn't know about. I had two Fisher F44's with the same glitch in circuitry design and called the factory repair tech ... they didn't know about it and it took three of them to check out my info and get back to me. It isn't 'fixable' and most people won't notice it. The device works fine for what it is so I kept mine on-hand for simple Coin Hunting as a loaner unit.
In this case, it was a design oversight and I hope it can be corrected. If not, I'll live with it and just not use the All Metal Accept Discrimination. The Vanquish 540 Pro performs well in many applications, and as I mentioned, I even ordered a 2nd new 540 Pro that will be mailed off to me today. One glitch, but it doesn't effect all of the detector's performance. I just hope they learn from this, and the release of the Equinox with the few issues it has, that future new products should get more prototype evaluation and then correct any issues prior to production.
Monte