The Ace 400 operates on 10.5 kHz vs 6.5 kHz on the 250. The 250 displays a 12 segment target ID graphic while the 400 shows a numeric VDI scale from 0-100. Average detection depth on a US quarter for the 250 is about 7", while the 400 averages about 10" for the same (depth data from metaldetectorreviews.net).
The Garrett ACE 300 has an 8 kHz adjustable frequency whereas the Fisher F22 operates on a 7.69 kHz frequency. Thereās barely anything in it. This frequency means both machines are best suited to coin and jewelry hunting and neither fare well on wet sand.
Aug 21, 2005. #1. the GARRETT ACE 250 is an entry level detector in the $200 price range with features you would expect to see on a higher priced detector. the first feature to speak of is the target id legend that indicates visually whether you have found iron,foil,a nickle, pulltabs, gold, bronze, pennies,dimes,quarters,half dollars and
Garrett ACE 300. The Garrett ACE 300 is the new model of the world-famous ACE 250. Even know the ACE 250 was the worldās best-selling entry-level detector for years, I still give my top pick to the Fisher F22. The main reason for that is because Fisher machines are known to have slightly better recovery speed than the Garrettās.
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