The Garrett ACE APEX's Multi-Flex technology stands out in the mid-range detector market by offering six distinct frequency options in one machine. Instead of being locked into a single frequency like most detectors under $500, you get the flexibility to optimize your hunt for specific targets and soil conditions.
What Makes Multi-Flex Different
Multi-Flex runs on Garrett's broad-bandwidth digital platform, which processes multiple frequencies simultaneously rather than switching between them. This gives you more detection versatility than any other detector in the APEX's price range.
The APEX frequency options are:
- 5kHz - Best for large, deep silver coins and relics
- 10kHz - Good all-around frequency for most targets
- 15kHz - Enhanced sensitivity to mid-size targets
- 20kHz - Optimized for small gold and jewelry
- Multi-Frequency - Simultaneous multi-frequency for all target types
- Multi-Salt - Saltwater beach hunting with ground balance
Choosing the Right Frequency for Your Hunt
Lower frequencies like 5kHz penetrate deeper and work better on larger, more conductive targets. If you're hunting old homesteads for large silver coins or searching farm fields for relics, the 5kHz setting gives you maximum depth on these high-conductivity targets.
Higher frequencies like 15kHz and 20kHz excel at finding smaller, less conductive items. When you're searching for hammered silver coins, small gold nuggets, or thin jewelry, these frequencies provide better sensitivity to low-conductivity targets that lower frequencies might miss.
The 10kHz setting works as a solid middle ground when you're not sure what you'll find or when hunting areas with mixed targets.
Multi-Frequency vs Single Frequency Performance
The Multi-Frequency mode processes all frequencies simultaneously, giving you excellent detection on both high and low conductivity targets without switching settings. This works especially well in trashy areas where you might encounter everything from bottle caps to gold rings in the same hole.
Single frequency modes still have their place though. When you're specifically targeting large silver coins in clean soil, the 5kHz setting often provides slightly better depth than multi-frequency. Similarly, if you're prospecting for small gold in mineralized soil, the 20kHz single frequency can punch through ground minerals more effectively.
Soil Conditions and Frequency Selection
Heavy mineralization affects different frequencies differently. In highly mineralized soil with lots of iron content, lower frequencies typically handle the ground minerals better while maintaining decent depth.
The Multi-Salt mode specifically addresses saltwater beach conditions, where wet sand creates conductivity challenges that standard frequencies can't handle properly. This mode balances the multi-frequency processing with enhanced ground balancing for beach detecting.
Real-World Detection Scenarios
At old park sites with mixed trash and coins, the Multi-Frequency mode saves time by detecting everything efficiently without constant frequency changes. You'll pick up deep wheaties and modern clad equally well.
In iron-heavy farm fields, switching to 5kHz single frequency often helps separate good targets from iron false signals better than multi-frequency processing.
When prospecting creeks for fine gold, the 20kHz setting provides the sensitivity needed for small flakes that wouldn't register on lower frequencies.
Multi-Flex Multi-Frequency Technology from Garrett Metal Detectors on Vimeo.
Getting the Most from Multi-Flex Technology
Start each hunt in Multi-Frequency mode to get a feel for what's in the ground. If you notice you're mostly finding deep coins, switch to 5kHz for maximum depth. If small jewelry and gold items keep popping up, move to 15kHz or 20kHz.
Don't overlook the single frequency modes - they're not just backup options. In specific hunting scenarios, a well-chosen single frequency often outperforms multi-frequency processing.
The frequency flexibility really shines when hunting different sites in the same day. Beach hunting in the morning with Multi-Salt, then switching to 5kHz for an afternoon farm field hunt, all with the same detector.
