Nexus Multi -Tone VS VCO

The Credo DDM, Standard MK 2 and the MP V2 all have/had a feature called "Multi Tone" or "Dual Tone" this turns the detectors into two tone machines, ferrous will give a low tone and nonferrous will give a high tone. As you increase the position of the dial the nonferrous tone will increase and the ferrous tone will decrease. We can all agree that audio has come along way on modern metal detectors, take Minelab as an example, they have sweet audio on all their units with a number of useful options in regards to how you assign them. 

The Nexus multi/dual tone mustn't be mistaken as being similar to the audio on the digital machines, it's a very simple feature that adds another dimension to your hunting experience. On the detectors mentioned above, this tonal feature works best with a slower swing speed, it's not going to be effective if you're rushing around swinging like a madman. As we all know by now, Nexus is at its most effective with a slow and steady swing technique. 

Despite what one might initially think, you can gain a lot of information with the dual/multi tone engaged, there have been occasions when I'm hunting on quiet land when I'll use it exclusively and it works perfectly. Most of the time though I use it to check targets, when the tone is smooth without deviation it's a potentially good nonferrous target. If you get a mix of both low and high tones it could be indicating a nonferrous target in the same hole as iron, or the low tone could be picking up on a slight erosion of the target, it could also be a signal falsing on the edge of iron.

Just like the VCO on the V3, the multi-tone will discriminate at extreme depths so if you have a target response that doesn't kick the meter, engaging the multi-tone will identify the target correctly. I'm finding with "tones", less can mean more, I can understand my machines better using fewer tones. On my Equinox, even though I used 50 a lot I found myself preferring 5, it's the same with my Nokta Legend, 6 tones is more than enough to paint an audible image of what's going on. Two tones simply scales everything down and to be really honest I don't need any more audio options than two.

MP V3 VCO Tones

People need to understand that the VCO on the V3 is a different animal to the dual/multi tone options on the other machines. Firstly there's a lot more nuance in regards to the information that's being relayed to you, for instance, on a ferrous object the low tone will always come in first. Even if you're getting minor falsing on iron, if the low tone comes in first then it is iron. On a non-ferrous target you'll get the clean high tone immediately, if you have iron in the same hole, or in close proximity to ferrous the audio will indicate this. The main difference of the VCO compared to the dual/multi tone is the speed, the VCO is lightning fast and due to the fact that the V3 has adaptable recovery speed it will operate perfectly at any swing speed. The characteristic that the VCO and multi/dual tone have in common is their ability to identify and discriminate correctly at depth. Finally the audio of the VCO is acoustically satisfying and super smooth, this quality doesn't come across very well on GoPro video cameras.