Garrett AT Pro vs Minelab Equinox 600 for Coin Shooting

You’re ready to invest in a serious coin hunting detector and you’ve narrowed it down to two: the Garrett AT Pro and the Minelab Equinox 600. Both are proven machines with loyal followings, but they’re built around fundamentally different technologies. Here’s which one finds more coins in the conditions you actually hunt.

Quick Comparison

Garrett AT Pro: Single frequency (15 kHz), fully waterproof to 10 feet, target ID scale 0-99, street price ~$550-650. A proven workhorse that’s been the go-to mid-range detector for over a decade.

Minelab Equinox 600: Multi-frequency (simultaneous 5, 10, 15 kHz), waterproof to 10 feet, target ID scale -9 to 40, street price ~$550-650. Newer technology built around Minelab’s Multi-IQ simultaneous multi-frequency platform.

Multi-Frequency vs Single Frequency for Old Coins

This is the fundamental difference, and it matters more than any other spec on the sheet. The AT Pro runs at a single 15 kHz frequency. The Equinox 600 fires multiple frequencies simultaneously and processes the combined returns.

Why this matters for coin hunting: different coins respond better at different frequencies. A large silver dollar buried 8 inches deep rings clearest at lower frequencies (5-10 kHz). A thin dime at 4 inches pops better at higher frequencies (15-20 kHz). A single-frequency machine is always a compromise — tuned for some targets but not optimized for all of them. Multi-frequency processes the full picture simultaneously.

In mineralized soil — the red clay and iron-heavy ground common at old homestead sites — multi-frequency separation is dramatically better. The ground itself generates noise, and multi-frequency processing can filter ground signal from target signal more effectively than single-frequency machines. If you hunt in heavy mineralization, this isn’t a subtle advantage. It’s the difference between hearing a deep silver coin and walking over it.

Where the Garrett AT Pro Wins

Park hunting in clean soil. If your primary hunting ground is a well-maintained park or school yard with minimal mineralization, the AT Pro finds clad coins all day long. Target ID is accurate and consistent in these conditions, and the learning curve is shorter than the Equinox.

Simplicity. The AT Pro is easier to learn. The controls are intuitive, the target ID scale is straightforward, and there are fewer settings to configure. For a first serious detector, this matters — you spend more time hunting and less time reading the manual.

Durability and parts availability. The AT Pro has been around long enough that accessories, replacement coils, and aftermarket add-ons are everywhere. It’s also built like a tank — there are AT Pros with a decade of hard use that still perform at spec.

Where the Minelab Equinox 600 Wins

Mineralized soil and iron-heavy sites. Old homesites littered with iron nails, bottle caps, and farm equipment fragments are where the Equinox earns its keep. Multi-frequency separation cuts through iron trash and finds the coins hiding between the nails. The AT Pro struggles more in these environments because single-frequency processing has a harder time distinguishing good targets from iron.

Depth on silver. In side-by-side field tests, the Equinox consistently hits deep silver coins (seated liberty dimes, Barber quarters at 7-9 inches) that the AT Pro doesn’t signal on cleanly. At those depths, multi-frequency wins because lower-frequency components in the multi-IQ signal penetrate deeper than 15 kHz alone.

Beach and saltwater. Saltwater saturated sand creates a nightmare of false signals for single-frequency detectors. The Equinox handles salt mineralization seamlessly — its Park and Beach modes are specifically tuned for these conditions.

Which Finds More Old Coins in a Typical Day?

In a clean park with moderate traffic: roughly equal. Both machines will find the clad quarters and memorial pennies at 4-6 inches with no trouble.

At an old homestead with iron-contaminated soil: the Equinox 600 pulls ahead meaningfully. It separates coins from iron more reliably, and it reaches deeper on silver targets. After a full day at a trashy old site, the Equinox hunter typically has 2-3 more keeper targets in the pouch.

At the beach: Equinox, not close. The AT Pro works on dry sand but falters in the wet sand and salt zones where rings and silver get deposited.

The Verdict for Coin Shooters

The Minelab Equinox 600 is the better coin hunting detector for most people in 2026. Multi-frequency technology gives it meaningful advantages in the conditions that matter most — mineralized soil, iron-contaminated old sites, and beach hunting. At the same price point as the AT Pro, the technology advantage tips the scale.

The AT Pro is still a solid choice if you primarily hunt clean parks, value simplicity over features, or prefer a machine with a massive aftermarket ecosystem. It hasn’t gotten worse — the Equinox has just raised the bar for what a $600 detector can do.

If you hunt old homesites or any ground with significant mineralization, buy the Equinox. The deep silver finds alone will justify the purchase.