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-   -   Anyone use a noise filter (https://www.caraudioforumz.com/general-discussion-10/anyone-use-noise-filter-32416/)

Cutra 01-05-2008 10:45 AM

Is the n-700 the one to get?
 

Originally Posted by Haunz (Post 290263)
David Navone - Car Audio Engineering

I bought my PAC isolator on ebay.

Is the n-700 the one to get?

Dukk 01-05-2008 10:47 AM


Originally Posted by Cutra (Post 290262)
I tried looking on the fs website yet they don't list one there.
Any thoughts on who else carries stinger?

You generally won't find things like LOCs, GLIs, fuses, dash kits, etc on the website. Go into a store. If they're not on the floor, pop into the install bay.

http://www.stingerelectronics.com/prodimages/SGLI.jpg

"SGLI
Product Family: Electronics

Ground loop isolator features 24K Gold plated twisted pair RCAs on both input and output. The SGLI utilizes audio transformer technology to filter out noise while retaining exceptionally good audio quality."

Haunz 01-05-2008 10:53 AM


Originally Posted by Cutra (Post 290266)
Is the n-700 the one to get?

NO.

The N-555 is the Isolator I was referring to.


The n-700 is a powersupply for your deck with active noise cancelling... yet another fix for ground loop that actually works...

Cutra 01-05-2008 10:57 AM

good thing i asked.
 

Originally Posted by Haunz (Post 290263)
David Navone - Car Audio Engineering

I bought my PAC isolator on ebay.


Originally Posted by Haunz (Post 290268)
NO.

The N-555 is the Isolator I was referring to.


The n-700 is a powersupply for your deck with active noise cancelling... yet another fix for ground loop that actually works...

Good thing i asked.

Dukk 01-05-2008 11:07 AM


Originally Posted by Haunz (Post 290268)
that actually works...

Seems to imply the Stinger doesn't work. Ever use one? The Stinger is a quality piece that is readily available, inexpensive, and completely returnable if it does not work out. I've carried a lot of different GLIs over the years in a wide range of pricing and the Stinger is a good part. Something doesn't have to be obscure or hard to get to work well.

Cutra - the skinny is that you shouldn't even need any of these. An hour of troubleshooting should get rid of the noise without any of these parts. All they are is the easy way to mask a problem but not fix it.

Cutra 01-05-2008 11:33 AM

hehe
 

Originally Posted by Dukk (Post 290271)
Seems to imply the Stinger doesn't work. Ever use one? The Stinger is a quality piece that is readily available, inexpensive, and completely returnable if it does not work out. I've carried a lot of different GLIs over the years in a wide range of pricing and the Stinger is a good part. Something doesn't have to be obscure or hard to get to work well.

Cutra - the skinny is that you shouldn't even need any of these. An hour of troubleshooting should get rid of the noise without any of these parts. All they are is the easy way to mask a problem but not fix it.

Yes I know an hour would do it but it's cold outside buddy.
If it was 20+ outside i would be ripping everything apart to figure it out lol.
I'm going to check out fs since i have a store credit anyway and yes of course if it does not work i'm returning back as soon as possible with receipt.

Haunz 01-05-2008 12:43 PM


Originally Posted by Dukk (Post 290271)
Seems to imply the Stinger doesn't work. Ever use one?

No, that's not what I ment... and I'm sure the Stinger works fine....

I was referencing the 'fixes' often recommended that generally don't work like changing ground points, rerouting cables, changing cables.. ect.. or band aids like grounding RCA's...


Originally Posted by Dukk (Post 290271)
the skinny is that you shouldn't even need any of these. An hour of troubleshooting should get rid of the noise without any of these parts. All they are is the easy way to mask a problem but not fix it.

If you have a ground loop problem it's because the equipment you are using has a lack of isolation between signal ground and power ground.. so Im not sure exactly how you can fix that with a bit of troubleshooting... short of swapping out equipment or using something that actually works to fix the problem....

JohnVroom 01-05-2008 01:59 PM

http://ecmweb.com/grounding/isolators_reduce_0804/
that is a very good thread on NEC and how our problems in car audio are not unique to us and our solutions are also not unique to us.

http://www.jensen-transformers.com/iso_aud.html
I think I used the C1-2RR very good and very expensive...

JohnVroom 01-05-2008 02:12 PM


Originally Posted by Haunz (Post 290275)
so Im not sure exactly how you can fix that with a bit of troubleshooting... short of swapping out equipment or using something that actually works to fix the problem....

the isolator is a cover up and the solution is trouble shooting which I coin as the "utilization of the logical process, starting from a known truth and identifying where a non-truth begins".
troubleshooting gets REALLY hard when there are multiple faults or an illogical fault (a non-constant fault or one that behaves oddly) ... i.e. water intrusion, multiple bad connections, a faulty wire/ crimp/ termination (as it jiggles its performance varies)

some of the isolation transformers perform better than others and you should be able to hear the difference between an el cheep-o (say $3) and a nice one (say $50), I am not SURE the Jensen I used was cost effective or not

Haunz 01-05-2008 04:55 PM

^ John, an isolator is not a cover up or a mask... it litterly breaks the path for a ground loop.....


Originally Posted by JohnVroom (Post 290279)
the solution is trouble shooting which I coin as the "utilization of the logical process, starting from a known truth and identifying where a non-truth begins".

Do you smoke PCP ?!?







Jensen has made high end isolators for a long time... and I'm pretty sure they started out making them for telephone lines....

No doubt the Cl-2RR is a high end transformer, capable of handeling higher preout voltage then most GLI's..... and I'm also sure the proof is in it's sheer size.... and price.....



To the origional poster the n-700 should be looking better all the time ;)


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