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.

My setup is a Motu M4, a Yamaha HS10 woofer, and two Yamaha HS8 monitors connected with TRS cables. I originally used an iDefender+ on the USB-C connection to my Motu M4 to deal with noise. It significantly reduced the noise, but I still had a low hum. I removed the iDefender+ and installed the Pyle PHE400. The hum is gone along with the other noise the iDefender+ was stopping. Very effective and recommended.

Gets the hum out. Best used in the amps effects loop. Now, realize this is a very budget device, and it gives a comparable performance. I also have used an extra set of patch cables to loop it through twice as I have just filthy electricals.

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.

Mini Hum Eliminator works beautifully, now my piano recording sounds perfect, like from the professional recording studio. HOWEVER: Please look closely at the photo I attached. When I plugged the 1 foot Orange top quality patch cables to the TS Mono INPUTS (at least marked as IN), the Mini Hum Eliminator seemed to introduce MORE hum to my sound. at first I was so shocked and disappointed, that I wanted to instantly return it. But I remembered one YouTube video saying that passive Direct Boxes work in both directions. So I tried plugging the 1 foot Orange patch cables to the TS Mono OUTPUTS. And voila!!! The hum was gone without leaving a trace of noise in the recorded waveform. I even cranked the gains to the maximum, and the monitoring headphones to the maximum, and then you only hear a tiny white noise, which is normal in all audio systems, even in the audiophile amps, when you crank them all the way up, of course you will have some white noise. But at the recording levels below the clipping levels, the noise is completely gone, I even recorded pure silence, and then amplified it, and all the ground loop noise, as well as the USB MIDI cable generated noise, are all gone. What a relief! PS I'm pretty sure the people who give this unit 1 star haven't tried plugging the unbalanced patch cables to the OUTPUT. they heard the terrible noise and instantly wrote a negative review, nd returned the item. This Hum Eliminator works as good as you could only imagine, BUT you need to know the factory "wrongly" marked the INPUT/OUTPUT.

Hat bei mir nicht funktioniert! Scheint aber gut verarbeitet zu sein. Was bei meinen Ground Loop super funktioniert ist das Teil von Behringer DI20.

It seems to filter the bass and certain parts of Audio... Have stopped using it... decided to hold on to it... but not sure if I can sort it out using settings on my Audio recorder...

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.

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