Instruction: Extract information from the supporting document to answer the given question.

Input:
Question: I have a 50 foot run of rca speaker wires from my computer to my stereo, is it better to put this device at the computer or the stereo? What kind of grounding does it require?
Document: If you need an isolator to make a device (in my case, a cheapo mini-speaker attached to my computer) stop humming, it does the job. I've had it for many months and it's solidly working. I guess for the money I spent on both the speaker and isolator, I could have gotten a better speaker but the product works as advertised.
With this installed, all static is gone and sound quality sounds better to me.Completely happy with this. However, like I said, I'm not sure WHY the picture changed, but the one currently pictured uses two RCA connectors, and has ground wires and speaker wires. Definitely not what we're talking about in these reviews. Customer pictures show male 3.5mm and female 3.5mm connectors, and that's what I received.
I had been plagued by a continual buzzing noise from my computer/TV/speaker setup ever since I replaced the computer monitor with a TV that could function both as a computer monitor and a TV set. It was so bad that I sometimes got a headache while watching Netflix (a regular TV station had proper sound). Searching on the internet brought up article after article about grounding, which meant experimenting with rearranging cords to see if the buzzing would stop.
Bought to use with a computer to TV setup but had to go a different direction. The build quality seems adiquate but we will see if and or when I put it to better use.
I got this because I have a 50 foot RCA to 3.5mm jack cable running from my receiver to my PC, which caused a loud hum that increased with the volume. Changing the vol settings and speaker settings under windows did nothing, or using a different audio output jack on the pc. Hooked this thing to my pc and the noise was eliminated by 100%! problem solved.
I was getting a bit of a buzz/hum that I thought was a grounding issue before I put this device in place. I then put it in place and started getting not only the buzz/hum but also started getting a loud clicking noise.
So on line in my realtek souncard I would get interference, with this there is none. Awesome.Also my headphones, I put a y splitter so I could also hook my computer and ps3 directly to the headphones, and that works too now. Before I would get an insane distortion.This apparently isn't recommended because it can damage your device? But I've been doing it for years with my psp and it works great.Great lil device, highly recommended.
This eliminated the high pitch whine that I would get if I had my cell phone plug in to the cigarette charger and the aux port on my stereo. This is a passive component so it doesn't need power, grounding, or any thing. Just plug it in between your stereo and your audio device and you are done.
I bought this to remove a ground loop and possible DC battery drain from my Kindle Fire when plugged into my home stereo (my battery went from 100% to 0% overnight with the unit in standby, but audio cable plugged in). When I plugged this inline with the RCA to 1/8&#34; stereo adapter, it actually added a bunch of hum. I tried several times to plug and unplug, reorient the device, wiggle wires, all to no avail.
I put in a new head unit and had a noise problem using my music player through the aux input while using a charger plugged into the dash power outlet. Tried different grounding spots for the head unit and the outlet. I gave up and threw a small amount of money at the problem. It's an isolation transformer. It works. It also adds to cord clutter. I'm willing to put up with that rather than keep opening up my dash in order to find the optimal grounding location.
Answer: It will most likely work best closer to the stereo, as it is filtering noise on the line, so you want the filteration to occur just before it goes into the stereo.