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A guy overseas is interested in purchasing an AQ and has been asking me about mine. There were indications that Fisher was going to sell an improved version with internal batteries. I guess that didn’t happen? It was also to have improved headphones. My headphones really pick up wind noise (I don’t go underwater). I’ve been meaning to make an earbuds set. This guy that I mention will be hunting mostly underwater. I’m wondering if there are better headphones being sold with the remaining machines or are they same as original? Has anyone found the volcanic mode a help? One place he detects is an island called Volcano with ferrous (and black colored) sand. I don’t recall seeing any improvement detecting in the highly ferrous black sand beach I tried north of Huntington Beach. Can he buy a new unit with one of the Li-ion batteries instead of the NIMH?

Some times you put your coil over Gold some times you don't.

Couple hour hunt yesterday brought a little surprise. I rarely get chains, let alone this small. Was about knee deep in the wash and the AQ hit on this one. Did not come up on the first scoop but did on the second scoop. ATS at 8 and delay at 10.5 to quiet things in the water movement and the chain hit very well. No good way to know how deep it was but when I got home and did an air test the chain is heard well on the AQ at 4 inches; all metal. In the picture it is next to a dime I dug today. Not sure if I hit on the clasp or the little balls on the chain. I tested it with the Excal and need to be about an inch or closer to the coil to hear the faintest indication in all metal and scraping the coil to get it in disc mode with disc set on minimum ... it nulls at 1/2 an inch and nothing at an inch in disc on the Excal. Markings in two places say 925.

This gold chain has a 585 mark. It is not attracted to a magnet. Neither detector sees it. Manticore vs Impulse AQ on gold chain My CTX and Dual Field also don’t see it.

Rough day Tuesday, headed out on the boat.. have a great spot but we never made it. 15 minutes out at 5mph.... the motor started missing when it was cranked up so we slowly got back to the ramp and headed home. Runs fine as long as it's not cranked up in the 3 to 4 grand rpms. Headed home started smelling brakes, which turned out to be the transmission on the truck, got home and told my buddy, I want to hit the water today...lets try driving to a different beach. He drove his car ... 5 hours later ..3 silver coins and one 5 gram 14k band, which somewhat helped the mood I was in.. Not much trash using a PI, I did have a golf ball size piece I unloaded but think I dug 4 pieces of iron. A few weeks ago I hit the same beach with the Xcalibur, targets were to deep for it so I knew this trip take the AQ. Plus I had made a couple new batteries for my AQ's so testing them to see how long they run.. figured about 8 hours..so far 5..need to check the voltage and run each out. These are 21700 5000mAh Samsung Li-ions, bigger than the normal 18650s 3500mAh I used a few years ago.. which gave me when using 4 cells 5.5 hours run time.

I uploaded new YouTube videos showing AQ vs Manticore performance on a nickel and a gold ring in black sand. Also one on a small possibly gold earring and another on a necklace (neither sees it!) Minelab Manticore vs Fisher Impulse AQ, black sand, gold ring

Has the AQ Limited now become a retail detector? On their website it appears so? Seems a bit confusing. Here's a link to it on thier fancy new website. I thought they were just clearing beta stock, now they're acting as if its a release model, at least it looks that way. I was under the impression they offloaded them all to Kellyco. https://fisher-impulse.com/impulse-aq-limited/ "Available in a production run limited to only 99 detectors" From 2020……

The info I dug up on this machine I am still thinking my modified TDI SL’s with MJ coils will still beat this thing in the end. I could be wrong you never know. Would love to try one side by side, but that will probably not happen. Actually thought of offering 1k as Steve suggested but I just bit my tongue and said to myself keep the money in my wallet instead. Lost track of the Impulse AQ progress or lack of since I have been dealing with health issues the past couple of years. Does anyone know of any existing information out there on a TDI SL vs Impulse AQ Limited. Looking for results against a TDI SL that has the larger 16.5V battery and has the sweep speed mods, gain mods, and filter mods done to it etc etc…..y’all know what I mean. Also targets that are actually buried in land (ground) or beach (sand) no air testing stuff or tubes in ground or sand. Preferably targets that have been in ground for some time.

Just heard that Fisher is bringing a new PI to market for gold prospecting. First I've heard of it.

Curious to see how they compare.

Finally decided on cable connector, got it quick from Mouser, and made an AQ to GPX adapter, and hope to try it in a couple days! The shaft pins are 90 degrees off so it might move around and get annoying. I’d prefer it were longer too - the stock shafts are about 9” longer. Any suggestions as to where to get the one I need?

As I’ve said on some other thread, it seems one of the AQ three coil connector pins is unconnected (it’s very loose). I know which is P and which is N. I can’t get my connector’s housing off to see without the likelihood of breaking the base connector. It just won’t undo. I discovered that my Beach Hog has shield connections that I probably missed on my gpx to AQ adapter.

Hi guys, So I’m a new AQ owner and think I better protect the connections with some kind of tape or whatever before I approach my local beach. What do you guys recommend - the reviews of some tapes on Amazon are pretty bad.

hello, is it possible to adapt a detection disk for a minelab gpx on fisher's impulse aq, thank you

A warm rainy day nothing frozen so I took the AQ to a fresh water beach I have been to countless times. After about an hour I heard what I was listening for a quick quiet targetI took one scoop and checked the hole it was still there, now I become more interested as a lot of the time the weak sounds are small lead fishing weights which are down about 4 inches. a few more scoops and it was out.

I think this topic needs to be lightened a bit .... the price of the detector is one thing ...- which should express the possibilities of the detector ... I would be interested ... if Mr. LEJAG ..., ... Geotech-Carl Moreland, and other members of the Manta-ImpulseAQ project ... or the Tester who is currently testing IMpulse AQ could write something about the possibilities of the Impulse AQ detector. lately, all the comments revolve around the beginning of production or prices .... let's talk more about what this detector can bring to the world of detection .. In any such project, positive thinking is important both on the part of the designers .... as well as on the part of potential people interested in this PI detector. Fisher Impulse AQ metal detector

I agree!! I seen the issue from the start with the AQ, even on the excalibur. In fact all waterproof headsets are weak in the audio department. To be 100% they must make them reliable, which can be very restrictive on the piezo bender. So make your own, all they have to be is water resistant, taking a dunk once and awhile is no problem. And they are easy fix if something goes wrong, since you made them. I have shared this before with others.. and had the same results as Alexandre

I have only been able to use the AQ on the beach for about an hour. With the original headphones I struggled to hear the differences that the Masters of the AQ talk about. I could hear the double beep on the rusty steel, but the ramp up and ramp down and the soft edges vs the defined edges, I just could not hear it. Then when I went home I tested targets for hours. Pennies, nickels, quarters, screws, bolts, tent stakes, copper rings, silver rings, platinum rings, gold class rings, tiny engagement rings.........etc, but I could not hear much difference. I assumed that I was going deaf and scheduled an appointment with the Audiologist for January. Today for the first time, I put a set of custom homemade headphones onto the AQ and let me tell you what a difference it makes. The ramp up ramp down was all there. The sound chop off when the coil was leaving a ring was so distinct you could tell with your eyes closed if the object was a ring or a nickel. It was my wax on wax off moment. Really excited to take it next week to the beach and see if the backyard transfers onto the beach. I want to sincerely thank the forum members who have been so generous with their knowledge, experience and recommendations. Merry Christmas to all and a safe and Healthy 2024.

When and why would you use the 8" coil on the AQ at the beach? Is it strictly an in the water coil or does it have uses on the wet sand?

At the right there is the option for captions then at extreme left, autotranslate then scroll down for English. Not all clear / accurate but decipherable for anyone who wants to do a deep dive on this detector. So its "Cog,"( settings) Subtiles, then Autotranslate, then scroll to English. Yhis is part one of two. --the seond one comes up at the end. Brilliant man gotta love him... cjc

EMI rejection seems to have an issue when moving from All Metal to Tone mode. [Major Edit] I removed two videos that were testing in my garage with too much EMI. Better depth discussions later.

I set a bunch of different targets out in a small area in my backyard to test with my AQ. Things don’t seem right. I don’t notice any difference if I vary sample delay. The ATS seems to determine the low/hi tone transition in Tone or Mute modes. Perhaps you have a simple test for ATS, sample delay, and Reject control behaviors?

Sorry for the false alarm earlier in the week, but suddenly I discover that Kellyco has an unlimited number of Impulse AQ Limited detectors for sale. Apparently they ship out from Fisher in Texas. Get them while they're hot!

Kellyco has a small number of Fisher AQ Limited available for the price of $1999. No additonal batteries available at this time and yes that is a $500 price increase from the original price for the AQ Limited. My question is does this mean that this is it for the AQ or will the Fisher AQ Unlimited finally be offered for sale? Interesting, very interesting.

Was out detecting today and came across two others detecting. One with a Manticore and one with a Deus 2. The guy with the Manticore could walk right up and we could talk and not hear the other's detector. When the guy with the Deus 2 got about 30 feet away I started hearing his detector in the headphones and by the time he was 7 or 8 feet away I had to turn the AQ off until we were done talking and we got some distance between us. The guy with the Deus 2 said he was not hearing the AQ as he approached. Not a big deal ... just a data point.