Pyle Compact Mini Hum Eliminator Box - 2 Channel Passive Ground Loop Isolator, Noise Filter,AC Buzz Destroyer, Hum Killer w/ 1/4" TRS Phone,XLR Input/Output, Uses 1:1 Isolation Transformer

There can be many causes of hum / noise in a piece of equipment: * Bad equipment * RFI / EMI (radio frequency or electromagnetic interference) * Bad line power * Guitar-cord related ground loop (most common in guitar / microphone / amp situations) This item works dandy if you are experiencing a ground loop problem. There is a very easy way to test for this too: if you have a guitar amplifier that has unwanted hum / noise, simply unplug the guitar cord. If you're having a cord-related ground loop problem, the hum will vanish. Plug the cord back in, hum returns. That problem is exactly what this is for. Plug you guitar or microphone cord into the "in" jack, plug another into the "out" jack and to your amplifier, and this cleans it up well. An inexpensive and efficient solution. If your noise problem is caused by one of the other factors, that's not what this is designed to fix. You may need the more expensive Hum X or similar device to handle a socket-based ground loop or noise problem, or if it's a problem with electrical noise or RMI/EMI problems, you may need a pricey power conditioner. 3-prong amplifiers: A way to test for socket-based ground loop issues is to use a prong adapter-- one of those orange or gray cheap things that converts a 3 prong plug into a 2 prong. This is for TESTING only as continued us can cause problems (there's a reason your amp has 3 prongs). Plug the amp into the adapter, plug the adapter into your electric socket, and if the hum vanishes a device like the Hum X will fix the problem. Avoid the temptation to just keep using the cheap prong adapter. It removes the grounding of the amp, and is a good way to burn out an amp or even cause a line fire. Of course if your amp only has 2 prongs in the first place, this doesn't apply at all. Bottom line: if the hum is caused by issues between the guitar and amplifier-- such is very easy to check by simply removing the guitar cord-- and this product will fix that. Note that if you have a serious issue with your guitar electronics or pickups, that may require repairing. But in my case this relatively inexpensive solution nearly zeroed my hum issues. Very pleased that it worked for me. If it doesn't work for you-- at least you'll have nice clean guitar line flow and you can look for other causes for hum.

PYLE PHE400 5 Stars: Problem: Synth out (2 ts mono 1/4 from Teo 5 to Focusrite) in ableton caused -55db static. Static disappeared with synth power cable unplugged from wall so knew it was ground noise. Solution: Synth out (2 ts mono 1/4 from Teo 5 to Pyle. 2 XLR female to male from Pyle to Focusrite. Used 12in length xlr). Static gone, was able to record in peace. The Pyle does not require power.

I have an older qsc amp that I use for stage monitors. I had a small buzz cause by ground loop that got a lot worse when the mixing board got moved to the front of the house and monitor returns are now snake fed. The qsc moniter uses 1/4" trs inputs so needs an xlr to trs cord. This was very affordable and has both connection types with enough for channels 1 and 2. Tried it near the mixer 1st and still had buzz. Moved it behind the amp and not much better. Ended up plugging the xlr to trs cord into the in and another trs cable to the amp and sound is finally clean. So it took trying in multiple locations but worked percectly once the right spot was found. Did a show and was complimented by guest musicians of my sound quality.

I have a stereo guitar rig, with two digital/solid state amps (quilter interblock 45 & fender tone master deluxe) I have a ground loop hum since I’m running it stereo, and read up on a few solutions. This seemed to be the most cost effective so i thought I’d start here. Firstly I saw some reviews where people have had quality control issues. For this price point that’s to be expected, luckily Amazon makes returns/exchanges very simple. I have not experienced any QC issues as of yet. Pros: This unit did solve my ground loop hum issue, for a good price at that. Seems to be made well, and could last a while if not thrown around. Cons: it majorly effects your tone. My amp sounded like it had a pillow over it. Now most my think this is a deal breaker, but I was able to mess with the eq and volume on my amp to make it suitable. Usually on my fender I use the normal channel. The vibrato channel is a bit brighter and by messing with the eq and volume I could get a pretty similar tone to my original. Usually I have my treble & bass around 5/6, with this unit in the signal chain, I have to put my bass at 9 and treble close to 10, plus I had to turn the volume up a bit to compensate for a little level loss. I most likely will look for a permanent solution that doesn’t effect the tone as much (and it’ll probably be expensive), but this is a decent solution at a good price for now. I also haven’t tested this with all my gain pedals, which I will soon but so far I’m ok with the results.

I had a problem with a hum in the return headphones and microphones that came from the mixer output and the program of the Blackmagic ATEM Mini Pro. I shared this problem with a friend from the church who works in the media department, who recommended these products to me. I bought one to try and effectively, this unpleasant hum is eliminated. Seeing the result of this wonderful Pyle Compact Mini Hum Eliminator product, I bought two more units to complete my setup. Too bad it only comes with two channels, I would like it to come from 4 channels to suppress the space. Thank you Pyle for this wonderful product. Juan Mayi.

Works like a charm. Be cautious about bad reviews. Ground loop noise is just that, it is introduced when you have multiple paths to ground. If you fix one but not others, you may still get noise. Also, noise on a guitar amp is not resolved by putting this between the guitar and amp as the guitar only has one path to ground. It will fix noise if you put it between pedals and a guitar if those pedals get AC power because both the pedals and amp are grounded. It will also work between synts and other audio equipment. Most people just hook these up and expect them to work, not knowing where their noise is originating or how these things work. When they hook it up wrong they blame the device.

I have 2 identical older stereo Midi sound modules, made in 1995-96. They're almost impossible to find now, and are worth very much to me, for the excellent sounds I get out of them. The 1st one I bought new, the 2nd one, I bought used. The 1st one has always worked fine and still does. The 2nd one has humming/buzzing from both L/R outputs. I compared both units using the exact same settings, and the identical amount of gain, side by side in my top-quality sound mixer. The one I bought new, has no humming/buzzing, while the used one does, (and presumably why it was for sale {?}). I contacted Roland Service, the manufacturer to see if they would still service these older units, (which are now 28-29 years old), and if parts were even still available, before I spent $40 dollars (or more) on shipping both ways, plus $80 an hour just to diagnose the issue, (before any potential parts needed and any further additional repair service fees). I never got a reply from Roland. I also had a nearby Roland Approved Service Repair guy look at it a few years ago, but he couldn’t find anything wrong with it. [I guess I should have given him both to compare the 2, like I have]. So, I decided to try this based on a few positive reviews. Bingo! Instant fix! Exactly what I needed. No hum or buzz whatsoever! To be sure, I double-checked by unplugging it and trying it again directly back into the mixer, and then inserting this device back in-line (stereo) again for a second time. No more humming/buzzing – at all! Instant success - all without yet another wall-wart power supply to find a place for in my already over-crowded music studio. So, for what would have been the (estimated) cost of just shipping alone of my sound module for repair, [never mind the down time/wait for repair and return time, plus at least the shop rate diagnosis service fee, starting at $80 hour] - problem solved! I like this item so much already, that I just might buy another so I always have a spare one on hand. Great product! Highly recommended! Thank you, Pyle! I’m pleased to leave this review for you and other customers.

It works okay. It does what I expected it to do good product worth a try.

Lo uso para distribuir señales de TimeCode LTC en grabaciones y funciona perfecto para esta aplicación, solo hay que elaborar correctamente los cables, no coloca ruido y la calidad de audio es buena.

good item and very well made

Used to connect my electric guitar to amp. 1. Attenuates the actual signal heavily. 2. Boosts the humming noise. Not fit for the purpose. Might be useful somewhere else.. maybe..As a good paper weight.