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Amps

Neil

Neil

Well-known member
Can anyone who has one of docs treasure amps/screamer amps explain how it works, meaning what are the results of using it. Does it widen the coil coverage, would say a smaller 8" coil loose its ability to seperate targets? How well does it work on wet sand at the ocean? Basically whats the difference between having one and not having one.
 
OLdBeechnut could probably answer you best. He's had one for a while and he has a few videos out on it.

It amplifies the signal that you do not hear.

Your detector sees the target, but it is so weak that it does not report it to you. The amp amplifies the weak signal that you cannot hear and makes it so you can hear it.

On one of his videos, his Excalibur with Doc's amp went against an Excalibur II 1000 without one. The Excalibur II could not hit the target while Oldbeechnut's with the amp nailed it.

Here is the link...........http://www.youtube.com/watch?v=Y8v0lBff1lU&feature=player_embedded
 
hmmmm..... will this amp work on the Sovereign GT? :)
 
Thanks Findskeeper. Anybody else using it?

Jim, I looked it up on docs website, looks like it connects between the detector and headphones and it says it works on any detector. also a cool looking pair of koss headphones on the same page for not to much money, might try those as well.
Jim send me your email and I can forward the link to you if your interested. Im at spokes44@msn.com. Its not proper to post the site here.
 
The Sovereign signal is a clipped signal....like the target signal ramps up but gets the top cut off then you can hear the down side, the part of the signal that gets cut is the center of the target under the sand..short vid with Shauns coil side amp and doc's audio side amp

http://www.youtube.com/watch?v=TAFW8qQpgjo&feature=player_embedded
 
I have 2 sets of headphones with the amp's
Does it work? Seems that I'm the only one that has got any good results as far as depth. Results can vary from beach to beach..and it works in PP mode of the Excalibur only, does not work on any of my other detectors. With them it just amps up the audio as a single tone as it does in the disc mode of the excal also. With the Excalibur you can separate the threshold from the target audio,...When you lower the threshold to just audible while in PP and hunting (W/out the amp) there can be slite disruption in the threshold, with the amp these come out as strong solid hits. ..video W/O amp

http://www.youtube.com/watch?v=2FudDaUYrnw&feature=channel_video_title


One.............This is the Stock just audible audio you would normal hear from any Excalibur in PP mode.

Two..............Doc's Amp turned on at this point, Pulling up the threshold from the faint to a blaring threshold, all audio targets below this threshold can not be heard because it was covering them up.

Three............Threshold is now adjusted lower and the targets that were once covered

Four..............Are now heard

http://www.youtube.com/watch?v=3zRgGkmgsSY&feature=player_embedded

The same way you adjust the amp for the Excalibur is the same way you would adjust it for a Minelabs SD or GP series PI Gold Detector
From Doc's web site
PROPER ADJUSTMENT: The thing you have to do with the Gold Screamer is to take a test nugget and place it on the ground, (with the Excalibur a faint deep target at the beach) swing over it and adjust the volume of the Gold Screamer up, and now turn the threshold down, swing over again and turn the GS up, threshold down. Keep doing this until you get a sense of the best setting. What you are trying to do is to separate the threshold from the target sound as far as you can, so what you are looking for is a nice quiet threshold, but when you come across a small target it really jumps out from the quiet threshold. You are trying to move the threshold far to the left, to the quiet side, and the signal far to the right to the loud side.
When adjust the Threshold down on the Excalibur in the PP mode you are uncovering targets that were there but not heard because they were covered by the threshold.......




http://www.youtube.com/watch?v=HG-1SUctH8E
 
The simple setup................................................ then the three sets of Peltors HP's that I have installed Amps in, 2 Doc's ...........and the other A tiger Amp off ebay..which does not even come close to Doc's Amp....


The only changes I want to make to these are the toggle switchs..they keep getting turned back on......
 
OldBeechnut,

Thank you for the videos and information you have provided. - Jim
 
Eric..........They would be fine, the new ones that I have mounted in the headphones are water tight....but I really don't do ruff water with the excals anymore mostly the CZ20's 8 inch....And Now the DF in some places...

heres your WOT in the wetsand...with the amp

http://www.youtube.com/watch?v=xInLPXijE70
 
OldBeechnut said:
Eric..........They would be fine, the new ones that I have mounted in the headphones are water tight....but I really don't do ruff water with the excals anymore mostly the CZ20's 8 inch....And Now the DF in some places...

heres your WOT in the wetsand...with the amp

http://www.youtube.com/watch?v=xInLPXijE70
Click to expand...

Well I suppose that if you are using an 8 inch coil hunting shallow or mostly wet you might need some amplification at depth but I have no problem hearing a dime at obscene depths with my WOT and frankly I don't want to dig any deeper than that out in the surf Also when I use the Infinium LS or Sea Hunter MK2 they are so loud that I have to stuff the headphones with foam
 
i use one on my excalibur 2 1000, it helps allot for those really faint targets.....
hh
john
 
ON the use of a amp on the Sovereign, old depthmaster amp
 
Hey Joe,
How are you ? ......Where is the BLAST diode ? .......Any idea ? ....... Is that the only part of Soveeiegn that differentiates it from the Excal as far as doing the mod to be able to use an amp ? .......Have you tried this on a Sovereign yet ? .....THanks, Jim

PS ...I ALWAYS defer to you on audio matters ....You da man !!.....Jim
 
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