I won't post up the full run down on the Monster I've got written, reading back on it it's just far too derogitive to the company and the initial reviewers.
You've read the reviews and seen the short clips, you know they'll feel wobbly, both with stock shaft and the badly designed placement of the battery compartment.
While airtesting to get your audio feel and headphone or speaker/amp compatibility down pat, you notice the splay of gain these produce is terrific, and you get a real hopeful feeling that when on the ground, the permanent tracking and both the manual sensitivity or the two Auto sensitivity settings will correlate well and allow you to work quiet ground, quiet heaps, shallow gutters ect. along with a slight promise of being workable in hotter ground.
Sadly when working in the real world these machines are pitiful, not just in comparison with their competitors along the gold vlf ranges, but as a stand alone detector they bomb out very badly.
The initial ground balance is far too slow. About a fifth of the speed of gmt and f19's platforms ect (these units are their direct competitors, and are miles ahead of the monster due to their output of gain while remaining stable, and their ability to work hot ground)
When in manual sensitivity the initial balance merely cuts the gain short to achieve the balance, and kicks back to the setting when the coil moves off.
Manual sensitivity is a lost cause, hence the reviewers like of Auto and Auto plus sensitivity.
After initial balancing when in auto or auto plus, the units travel a touch better because the auto sensitivity pulls the gain back in far further than you would run the manual setting, like a tortoise pulling it's head back in.
Over quiet ground and totally benign mullock the manual sensitivity sends them squirrely and upsets the tracking. Giving the distinct impression that the tracking cannot cope at all unless the either of the auto functions can settle it.
Any power we want over the machine is complety taken away from us. Which of course cuts the monsters applications near enough to none.
The audio has a bland distinction rate for judgement of targets, even shallow, and very shallow is the world you'll be detecting in.
I tried to find an application for the disc mode, but due to entire operation of the unit, discrimination became kind of a moot point.
I read somewhere that a fellow felt a larger coil would gell with these? They can't handle the two coils they already have.
Yeah, we are wondering why a good company would make and market such a thing. That whole African thing doesn't cut it, they are marketed all over the world.
While the 705's electronics get swamped on hot ground, the sensitivity, tracking and their overall performance on quiet ground, to quote an old blurb, are three to four times deeper than the monster.
It's insulting to the original Australian company to have this monstrosity mentioned alongside with the magnificent vlf machines they have produced over the past four decades.