Reddit reviews BOSS Audio Systems Ground Loop Isolator B25N noise Filter for Car Audio Systems

No way are the Elac Debut speakers the best speakers anywhere near that kind of price range. They are very good speakers if someone specifically likes a soft tweeter though, and will sound very very different to your klipsch.

The RBH mentioned I would take over the Elacs all day, they really are fantastic. The only problem is they roll off at about 60hz. That may be enough for a desktop setup, but if you want slightly more bass extension also consider the Ascend Acoustics CBM 170-SE which are tuned closer to 55hz and on sale for $330 shipped.

There are plenty of speakers I would take over the Elac, throw in the Emotiva Airmotiv B1 speakers in the ring too.

EDIT: I didn't quite understand the description of the noise you were talking about. If it persists with the Onkyo, consider trying out a cheap ground loop isolator like this one. I had noise creeping into my USP-1 and Behringer A500 setup that has been resolved by a ground loop isolator.

I got this:

http://www.amazon.com/gp/aw/d/B000LP4RMG/ref=mp_s_a_1_2?qid=1458219686&sr=8-2&pi=SY200_QL40&keywords=ground+loop+isolator

And plugged it in behind the stereo between the stereo and the aux cable

I'm using the "subwoofer" input with a positive and negative wire. I've tried isolating equipment, and the only changes that happen are that when I unplug the TV HDMI out from the receiver, the hum gets louder. I've been going through this guide and just ordered a ground isolator.

Welcome to noisy grounds, hissing and spitting since 1969.

Buy an RCA or 1/4" TRS ground loop isolator, run it between your sound device and the input of the monitors. Problem solved.
For TRS

For RCA

They are about $15. It breaks the ground over the RCA connection which will instantly stop the noise from your computer and DAC. Switching USB ports, and using USB filters are not the best solution and might not even resolve it. Isolation is a common thing to do when running 2vRCA between any 2 pieces of equipment (or using xlr)

The ground the speakers amplifiers have, the ground on the audio cable connected to that amp, the ground of your audio device whether USB DAC or pc, all of these grounds are different, they carry different stray currents and noise, and since they are not a common ground, they act like an antenna rather than a noise blocker.

By isolating the ground over the speaker cables you break the antenna in half and remove the noise.

You've actually just ran into the real reason why XLR connections are preferred in pro-audio. Because the out of phase wiring, allows a signal wire summation that cancels out the noise. RCA and TR don't do that though. TRS (can) do that as it's 3 conductor just like XLR, but it would need to be 3 conductor TRS on both sides of the cable. I know the 305's are TRS, but what you're plugging into probably isn't unless it's a mixing deck.

I dunno, this does sound like a ground loop. The interference noise isn't necessarily always instant... In some ground loops, the interfering voltage can build up over time as it "loops". If the source of the voltage varies that would explain why the hum is inconsistent.

Next time the hum happens, leave the sub on and just disconnect the audio cable. If the noise goes away it's likely a ground loop. A ground loop isolator on the signal cable should solve the problem in this case.

Make sure your speakers and computer are all plugged into the same power strip and that the ground is intact in all 3 cables (the round pin). If the buzz persists, try using a ground loop isolator in line from the headphone jack.

http://www.amazon.com/gp/aw/d/B000LP4RMG/ref=pd_aw_sim_263_2?ie=UTF8&dpID=51gI8Y8MJbL&dpSrc=sims&preST=_AC_UL100_SR100%2C100_&refRID=0CTYVTZBZ1X417BY6F3B

Sorry for the late reply, I ended up buying this ground loop isolator and it fixed the problem! Which was surprising to me because I plugged the monitor into a couple different outlets, including the same power strip as the other monitor, and the hiss persisted.

Thanks!

Ninja edit: Do you know if it'll still sound how it should if I only use one of the RCA in / RCA out plugs on the isolator?

Edit 2: Nevermind I plugged both monitors into the isolator. Plugging only one into it caused the other to have a weird humming sound, sounded almost like it was vibrating.

I had the same thing that's happening to you, have HS7 and a Focusrite Solo, I got a ground loop isolator and it cleared it up perfectly (I use RCA cables also). At first I thought it was my PC because when i plugged to my laptop it was fine. Try either balanced cables or get one of these .

Found it: https://www.amazon.ca/gp/aw/d/B000LP4RMG/ref=pd_aw_fbt_107_img_2?ie=UTF8&psc=1&refRID=01HDG8GEK7JMVCMZKE84

Without it hiss was unbearable. It does not remove it 100% but it's better than nothing.

That said there is a constant whine when the car isn't running and the amp is on as well

I've tried this and my next item is this

Not sure if you're using regular RCA audio cables. I used to use a ground loop isolator to fix this issue.

https://www.amazon.com/BOSS-Audio-B25N-Ground-Isolator/dp/B000LP4RMG

Something like this?

Where would it go in the chain? Wouldn't this become the "weakest link" and make the more expensive shielded cables useless?

I don't know if you really need that decrapifier...You may be able to use this instead...http://www.amazon.com/BOSS-Audio-B25N-Ground-Isolator/dp/B000LP4RMG/ref=pd_rhf_dp_p_img_5?ie=UTF8&refRID=0Z2WN01WAP1EAZ7YPNCG ...It's worth trying something like this for under $10 first...Hopefully it'll work

by excess noise I believe you are referring to the static hum you get from too much EMI? you could run that through a ground loop isolator to eliminate that hum.

they also make a HDMI splitter that has RCA/optical outs.

You have a ground loop. One of these should put you right. Put it inline between the controller and the monitors.

I made a similar post a few days ago. What I didn't mention in the post was that the buzz was much much louder when I had a game open. /u/BeardedAlbatross suggested buying this ground loop isolator , which I did. It came today and the buzz is 100% gone.

Yo man it sounds like you might have a "ground-loop" issue.. I had a similar problem when I connected my DDJ-SB2 to my sub/speaker's so I invested in a ground loop isolator similar to this. I picked mine up from Radioshack, but the concept is the same. It basically grounds all of your sound cards/peripherals with a 'common' source & eliminates the buzzing/white noise you are hearing.

For your ground loop problem you need an isolation transformer like this that will galvanicly isolate the grounds.

If you have a Mac, you may be able to force it through an Aggregate device. I don't know of any possible fix through Windows.

https://support.serato.com/hc/en-us/articles/202304774-How-to-use-your-Serato-hardware-playing-through-your-Mac-s-internal-speakers-using-Aggregate-Device-

Otherwise, you will need to use an external device. You may find a ground loop isolator (e.g. https://www.amazon.com/BOSS-Audio-B25N-Ground-Isolator/dp/B000LP4RMG/ref=sr_1_1?ie=UTF8&qid=1484463823&sr=8-1&keywords=ground+loop+rca) useful, though this will reduce the input volume a bit.

> LSR305

For use with my old amp I bought one of these because I heard it might help, and it did help. It just didn't get rid of all of the noise. Might be worth a try for you they're pretty cheap.