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

Since I hooked up all my new Boss radio, amp 4 speakers, and subwoofer, worked great but had that awful whine from the alternate. 2 of these ground loop eliminators, front channels and back, the speakers are whisper quiet between songs. Well worth the $15 apiece!

TEN STARS! TWENTY STARS! PERFECT FOR STUDIO USE!This comes from a professional audio engineer and music producer.Read on so you understand the miraculous level of goodness this little thing packs for $8To give you an idea of the level of noise I was getting in my headphones, I have a 10 USB port hub, with a Roland Quad Capture, a Kaoss Pad, an Arturia Microbrute (ANALOG synth), Panorama P4 MIDI Controller (takes two USB ports), a Mininova, my typing keyboard, my mouse, and outside of the hub on the three remaining ports, an external hard drive, a laptop cooling pad and a Pioneer DJ Controller.Since my soundcard as amazing as it is only has two inputs, I have the Microbrute routed through the Mininova (unbalanced), the Mininova routed through the Kaoss Pad (unbalanced), and the output of the Kaoss Pad (unbalanced) to the two inputs of the soundcard for stereo. All three connected via USB with the rest of the stuff. Needless to say, the amount of hum I was getting was insane to the point I desisted from recording anything for a bit and stuck to soft synths, leaving the hardware for ornamental purposes and your occasional sound I had to filter the hell out of.I bought two of these BOSS things because I thought I could need more, and had all sorts of premium TRS cables, stereo DI Boxes and what have you saved for later on my cart, ready to buy them in case this didn't work, but since it was $8 I thought it wouldn't hurt to try.In short: with all that mess, ALL I DID WAS PLUG IT TO THE KAOSS PAD OUTPUT AND ALL THE HUM IS GONE.ALL OF IT.I even turned up all of the volume input and output knobs just to see if there was anything left. Nothing. Just pure, beautiful, analog hiss. No hum. Nothing.This thing saved me hundreds of dollars in USB filters, hum filters and cables, and all I've got is a bunch of cheap RCAs because all outputs and inputs between these synths are unbalanced. Also, don't fall for the RCA marketing hype. No matter how cool an RCA cable looks, granted some will last more than others, but all of them produce considerable noise.Thank you BOSS for such an amazing product!P.S. Just so you know, I didn't care, but maybe some of you would be concerned because the casing is not made of metal as it appears to be. It's plastic. But that was not a problem for me. Not sure how it would work in a car though.

When connected my aux input stop working, my connection was as follows, Android head unit RCA out to isolator to factory AUX RCA input. When connected the factory unit disable the AUX option.It won’t work on 2008 Acura MDX

Installed a backup camera and monitor in my older car. All worked well, except there was a lot of noise on the monitor. Tried this ground loop isolating transformer on the video cable that connects the backup camera to the monitor but it did not allow video to pass thru. Then I tried putting it on the power cable and I saw no improvement. It's a great looking unit and it's just not designed for this application. It is designed to work on audio cables. I ended up installing small ferrite cores on the video cable, and that solved most of the video noise problem.

Listening to music is probably my favorite hobby. I went through three different home built PC's (have been building my own systems for a while now) to get rid of noise emanating from these builds i.e. Home entertainment PC based systems. This little box cleared up the noise completely. It does exactly what is was designed to do, i.e. get rid of input noise. For more details read on.I'm a PC enthusiast with audiophile taste but not their pocket. My previous system was an Amd FX-6350 CPU and a Sound Blaster X-Fi Platinum sound card for a 5.1 sound system. Two power amplifiers and 15" and 12" speakers for sub's and front and other smaller speakers for rear and centre. My FX-6350 System had no noise problems but I was dissatisfied with it's performance. I messed up my system striving to extract more performance from it. The system froze during a bios upgrade ending my MOBO's life hence the need for my new build, an FX-9590 PC. I went for an upgrade of my sound card as well.The first new system an AMD FX-9590 with a sabertooth 990fx and an upgraded Soundblaster Z sound card was working well with the exception of noise coming from the sub-woofers and to a lesser degree from the front full range speakers connected to the pyramid PA-1800X and PA-800X power amplifiers respectively. The whining static like in and out white noise morhed with a high pitched sound of a few kilohertz was unbearable especially since my new sound card was rated @ 116db S/N ratio.I tried a different power supply and video card which helped a little but the noise was still there. Bought another MOBO but the thermals of that board was too low for my new 220w tpd processor, but worked well my FX-6350. I then sold the first MOBO the sabertooth 990fx which locked up on the boot screen. I thus gave up the second MOBO which according to my research had a few successful builds with a FX9590 CPU. I sold it along with the FX-6350. I'm now down three MOBO's I have a powerful new CPU and no working system. I then purchase my final MOBO a Crosshair V formula Z and guess what the noise is back.I researched the problem on-line and tried sheilding the sound card with foil and cardboard - no significant difference. With my MOBO bios one could save various bios setting profiles, so I underclocked the machine significantly from 5.0ghz to 1.5 or 1.8 ghz. It helped but noise was still there but more tolerable but the machine's performance was significantly diminished.. Frustrated with performance I went back up in clock speed and turned off two of the eight cores, it helped but not enough. I was convinced that the problem was processor based I had no intentions of buying another MOBO. SInce Sub-woofer output is mono I used two ten band equalizers in series i.e. channel into channel and then equalizer into equalizer and attenuated everything from 300 hz and above. total attenuation 12db per channel times 4 - 48db this yielded the largest reduction in noise and I used this system for a while but in a quiet room, anyone with a keen ear could still hear the faint noise.While searching for a better solution on-line I came across a number of possible solutions and one of them took me to a device similar to this one on amazon. I reviewed the specs and especially the reviews of devices similar to this one and despite a few negative reviews after careful consideration I decided on this one.That is a decision I will not regret. My noise problem persisted for several months and could be detected in a room from a distance of twenty feet or more feet even with the volume muted on my PC. I tried a number of possible solutions which had limited to no success at all. I went through three different motherboard at a cost of a couple hundred dollars and guess what the solution was this device available right there on Amazon for less than 10 bucks.I highly recommend this product it works. I experienced no audible signal loss as some reviewers claimed but I did experience full noise loss. I think it was designed for car audio but it certainly works for home audio. Now I can put my ear to the grill of my 15's and hear no noise whatsoever with the PC soundcard volume at one hundred percent while nothing is playing. Thanks Boss audio for a great product.