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Nady HE-1 Hum Eliminator 

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The Nady compact HE-1 is a sure-fire bet for quick and easy removal of 60/120 cycle AC hum from your signal path. This two channel mini-box is design...Click To Read More About This Product

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The Nady compact HE-1 is a sure-fire bet for quick and easy removal of 60/120 cycle AC hum from your signal path. This two channel mini-box is designed to eliminate hum caused by ground loops while also acting as a direct box capable of converting unbalanced signals to true balanced signals for long interference-free cable runs. It's passive design is easily portable with no AC sockets necessary. A couple of these are essential hardware in every musician's or roadie's tool bag.

FEATURES
  • Eliminates AC hum (60Hz/120Hz buzz) easily with up to 20dB of attenuation
  • Converts automatically back and forth between balanced and unbalanced lines at either end”also can be used as direct box which converts signals from unbalanced to true balanced
  • Breaks grounds loops safely, while leaving all signal grounds intact
  • Dual Channel I/O with 1/4" TRS 'smart' jacks
  • Completely passive design with audiophile quality components assures the best possible noise and distortion-free performance
SPECIFICATIONS

HE-1 Hum Eliminator

  • Input Connectors: 2 x 1/4" TRS jacks
    Output Connectors: 2 x 1/4" TRS jacks
    Input/Output Impedance: 10K Ohms
    Maximum input: 8V RMS
    Maximum source impedance: 1K Ohms
    Minimum load impedance 10 Ohms
    Frequency response 20HZ to > 20kHz (- .05dB)
    Dimensions (WxHxD) 4.5" x 1.63" x 3.5"(114.3 x 41.4 x 88.9 mm)
    Weight 16 oz (453g)
Reviews
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Review Snapshot

by PowerReviews
NadyHE-1 Hum Eliminator
 
4.2

(based on 15 reviews)

Ratings Distribution

  • 5 Stars

     

    (10)

  • 4 Stars

     

    (2)

  • 3 Stars

     

    (1)

  • 2 Stars

     

    (0)

  • 1 Stars

     

    (2)

80%

of respondents would recommend this to a friend.

Pros

  • Easy to use (7)

Cons

No Cons

Best Uses

  • Performances (5)
  • Home studio (4)
    • Reviewer Profile:
    • Experienced (5)

Most Liked Positive Review

 

cheap device did the trick

I was looking for a hum eliminator to place in line between my Ibanez Tube Screamer and my Fender twin. When I plugged my pedals into a power strip I got the normal buzz...Read complete review

I was looking for a hum eliminator to place in line between my Ibanez Tube Screamer and my Fender twin. When I plugged my pedals into a power strip I got the normal buzz that everyone talks about. I got this, not really being a "Nady Fan" but because it was a cheap device that claimed to do the trick. When it came in I took it out of the box, turned it over and heard something inside move. I thought it got damaged when shipped. I went ahead and plugged it up - and amazingly the hum was completely gone. Note I said "completely" - no trace left at all. I still don't know what that "moving part" sound is inside but it works like a charm. Now when I load my pedal bag up, I would sooner leave one of my pedals behind before I left this item behind.

VS

Most Liked Negative Review

 

didn't work for me

I got this unit under the advive of MF, when the wireless system I had purchesed (from MF)was giving me an obnoxious hum. I was told: yup - this unit would take...Read complete review

I got this unit under the advive of MF, when the wireless system I had purchesed (from MF)was giving me an obnoxious hum. I was told: yup - this unit would take care od it! Well, I plugged it in, and there was absolutely no difference. I returned everything- the wireless and the hum-eliminator. I've seen other good reviews for the HE-1 here, but for me, it simply did not work.
I must say, however, I am VERY happy with the MF return policy.

Reviewed by 15 customers

Displaying reviews 1-10

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(2 of 2 customers found this review helpful)

 
4.0

cheap device did the trick

By dfsixstring-N4CZf

from TN

See all my reviews

Comments about Nady HE-1 Hum Eliminator:

I was looking for a hum eliminator to place in line between my Ibanez Tube Screamer and my Fender twin. When I plugged my pedals into a power strip I got the normal buzz that everyone talks about. I got this, not really being a "Nady Fan" but because it was a cheap device that claimed to do the trick. When it came in I took it out of the box, turned it over and heard something inside move. I thought it got damaged when shipped. I went ahead and plugged it up - and amazingly the hum was completely gone. Note I said "completely" - no trace left at all. I still don't know what that "moving part" sound is inside but it works like a charm. Now when I load my pedal bag up, I would sooner leave one of my pedals behind before I left this item behind.

(2 of 6 customers found this review helpful)

 
1.0

Didn't work for me!

By Hill Hight

from TN

Comments about Nady HE-1 Hum Eliminator:

My pedalboard ends in stereo fx, and I use two amps in stereo. Was looking to replace my VooDoo Lab Amp Selector (a large unit) with something smaller, saw this, seemed to fit the bill. Upon hooking it up, however, my amps made more noise than ever before. Without changing anything else, I swapped it out for the Amp Selector and the noise went completely away. Bad unit? Maybe, but how is a ground loop situation to be corrected without isolation transformers? I suppose I'll splurge for the Lehle Little Dual, it's small and by all reviews I've read, very well made and works very well. I'm very disappointed, as I own two Nady TD-1 Tube Distortion pedals, they sound great and appear built well. I would not purchase another one of these.Small, two ins and two outs, metal, seems ok here. Has the potential of saving space on my pedal board for my two-amp stereo setup, but did not work properly.
OK, it seems tough. It's metal, and feels solid. It doesn't do what it's supposed to do, though. My amps made more noise than without it. If it were flimsy," I would have given it a ""1-Terrible""", but Nady gets a point for a sturdy housing, and the jacks are mounted to the case.
If it worked, it would be outstanding! So, to spend money on something that doesn't work is the epitome of bad value.

(1 of 1 customers found this review helpful)

 
5.0

Nady HE-1 Hum Eliminator

By Gordon G

from Chester, NY

About Me Professional Musician

See all my reviews

Ask me a question

Verified Buyer

Pros

  • Easy To Use

Cons

    Best Uses

    • Performances

    Comments about Nady HE-1 Hum Eliminator:

    I have a bass amp that was giving out a noticeable hum when connected to one of my keyboards. Also, when a motor went on in the house such as from an air conditioner, you would hear a click come through the amp so whatever is causing the hum probably has something to do with the wiring in the house. The hum only occurred with one particular keyboard connected to one particular amp, but I needed something that would eliminate the hum. The Nady HE-1 completely eliminated the hum and didn't color the sound in any way. It has two inputs and outputs, but I only needed the one for the keyboard. I highly recommend having it for clubs because you never know what kind of wiring is in some clubs.

    (1 of 2 customers found this review helpful)

     
    5.0

    Very nice box--solved my FX loop hum

    By Joseph Brackman

    from Phoenix, AZ

    See all my reviews

    Ask me a question

    Comments about Nady HE-1 Hum Eliminator:

    This solved my FX loop hum problem. I recently bought a Blackstar HT-5R, which I'm very pleased with, but was bummed that I couldn't use my TC Nova Delay and Modtone Mini Chorus in the FX loop without crazy hum. I tried telescoping the ground with my cabling (disconnecting the ground at one end of the cable), and that didn't help.

    I hooked this baby up, and had a minor scare about microphonics--it would make audible noise through my rig when I tapped on it. Operator error: I had one of the cables only partly plugged in. Then I plugged the cable in and it was silent. I mean, no hum, but no guitar signal, either. Remember what I said about telescoped ground cables? Well, that was the problem. Turns outyou have to connect the hot and the shield for it to work (duh). I changed out a cable, and bammo, FX loop working without hum. The sound is transparent. I don't notice any tone suckage.

    I'm bummed that I need another box in my rig to make it all work, but thankful that there's a solution so that I can use the awesome Gain channel on my Blackstar.
    We don't need no stinking features. Two ins, two outs. Note: comes with adhesive rubber feet, not attached. Nice. I'll use Velcro to attach to my pedalboard.
    Seems well-built and sounds transparent.
    Much cheaper than similar products.

    (1 of 1 customers found this review helpful)

     
    5.0

    Miracle worker

    By PinkFlydxx

    from Kentucky

    See all my reviews

    Comments about Nady HE-1 Hum Eliminator:

    I am always running into ground loop problems due to a combination of venue electrical wiring issues and/or equipment. I have tried all sorts of combinations to rid the sound of these. I bought one of these and kept it in my gear to try it out the next time we encountered the "hum". At our last gig, we had hum in all three channels out of our 3 way crossover. I put this item in the signal chain just before the amp and viola, the hum was completely gone out of these two channels. I was kicking myself for not buying two to handle the 3 channels and the monitor mix. On Sunday morning, immediately after I got home from the gig, I ordered my second one. I will never ever be without these things again.(P.S. I found out that in a pinch you can also eliminate hum with some direct boxes - tried it on our last gig and worked great - but I like the Nady HE-1's better as it was much easier to patch in the signal chains)

    (1 of 1 customers found this review helpful)

     
    5.0

    Essential

    By Z

    from FL

    See all my reviews

    Comments about Nady HE-1 Hum Eliminator:

    Works exactly as advertised. Kills your hum dead. Feels rock solid, doesn't take up much space and barely hits the pocket. This is all you need if you run two amps, two chains of fx pedals off the same power supply, etc and are having problems with hum. Will save a lot of money in that regard as you won't have to go buy seperate everything. Great buy...

    (1 of 1 customers found this review helpful)

     
    5.0

    Does the trick!

    By Sammy-2fzqN

    from Tracy, CA

    Comments about Nady HE-1 Hum Eliminator:

    I was having a terrible hum from my Yamaha keyboard. Figured I'd try the lowest price model which was this one, if it didn't work I could send it back...This one is all I needed!

    (1 of 1 customers found this review helpful)

     
    5.0

    hum eliminator

    By yves feder

    from CT

    Comments about Nady HE-1 Hum Eliminator:

    Extremely effective. Dropped the hum level at least 60 db (down to practically inaudible) on an especially difficult low level unbalanced stereo line between pres and aux A/D converter. Excellent unit very reasonably priced. Physically well made, solid. Decent connectors.
    Extremely effective. Dropped the hum level at least 60 db (down to practically inaudible) on an especially difficult low level unbalanced stereo line between pres and aux A/D converter. Excellent unit very reasonably priced.

     
    5.0

    If ground loops are demons, this is The Exorcist!

    By Steve of Mussel Flats

    from Coupeville, WA

    About Me Experienced

    See all my reviews

    Ask me a question

    Verified Buyer

    Pros

    • Clear Sound
    • Easy To Use

    Cons

      Best Uses

      • Amateur Recording
      • Events
      • Home Studio
      • Performances
      • Professional Recording

      Comments about Nady HE-1 Hum Eliminator:

      I use the same 9V power supply for my chain of GTR pedals, and for a Harmonica mic and delay pedal. Needless to say, I get ground loops when these two signals hit the mixer. I plugged in my new Hum Eliminator, and I had to double check to make sure all my signals were still in the mix, because it was suddenly so QUIET! This thing does exactly what it claims, and for a very reasonable price. Get one--you won't regret it.

       
      5.0

      Great value, works as advertised.

      By Greg O

      from Richmond VA

      About Me Experienced

      See all my reviews

      Pros

      • Easy To Use

      Cons

        Best Uses

        • Events
        • Performances

        Comments about Nady HE-1 Hum Eliminator:

        Works as advertised. I have used it in outdoor venues and poorly wired clubs and this unit has come in handy. The noisy him was gone. Great price point as well.

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