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Rolls HE18 2-channel Audio Hum and Buzz Remover

Name: Rolls HE18 2-channel Audio Hum and Buzz Remover
Brand: Rolls
Price: 81.61 CAD
Availability: InStock
Rating: 4.0 (8 reviews)

US $59.00

ApproximatelyC $81.61

or Best Offer

Condition:

New

Quantity:

More than 10 available10 sold

People are checking this out. 4 have added this to their watchlist.

This one's trending. 10 have already sold.

Shipping:

Free 4 day delivery

Get it between Fri, May 2 and Mon, May 5 to 43230.

Located in: Fort Wayne, Indiana, United States

Returns:

30 days return. Buyer pays for return shipping. If you use an eBay shipping label, it will be deducted from your refund amount.

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eBay item number:405028908903

Last updated on Apr 23, 2025 03:01:24 EDTView all revisionsView all revisions

Item specifics

Condition: New: A brand-new, unused, unopened, undamaged item in its original packaging (where packaging is ... New: A brand-new, unused, unopened, undamaged item in its original packaging (where packaging is applicable). Packaging should be the same as what is found in a retail store, unless the item is handmade or was packaged by the manufacturer in non-retail packaging, such as an unprinted box or plastic bag. See the seller's listing for full details. See all condition definitionsopens in a new window or tab

Brand: Rolls

Type: Not Available

MPN: HE18

Model: HE18

Color: N/A

UPC: 675889000184

Item description from the seller

About this seller

Joined Aug 2001

Shopping for guitars, amps, effects, keyboards, microphones, PA gear, or recording equipment? Sweetwater Sound has it all, at great prices! As the world's leading music instruments and pro audio ...

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Detailed seller ratings

Average for the last 12 months

Accurate description

5.0

Reasonable shipping cost

5.0

Shipping speed

5.0

Communication

5.0

Computer AudioGuitarsKeyboardsDrumsDJ & LightingMetronomes & TunersMicrophones & PreampsMixers & Recording ConsolesMonitoring

Seller feedback (467,259)

This item (3)

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1***y (542)- Feedback left by buyer.
Past 6 months
Verified purchase
Very nice piece, great price, fast shipping, great seller A++
n***s (1308)- Feedback left by buyer.
Past 6 months
Verified purchase
Perfectly worked, super fast to ship! Ty

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Product ratings and reviews

Learn more

4.0

8 product ratings

6 users rated this 5 out of 5 stars
0 users rated this 4 out of 5 stars
0 users rated this 3 out of 5 stars
0 users rated this 2 out of 5 stars
2 users rated this 1 out of 5 stars

Good sound quality

Easy to use

Consistent results

Most relevant reviews

See all 8 reviews

by w5jgv
Sep 21, 2021
Just the Ticket to Eliminate Hum and Buzz
I have seen other devices that claim to eliminate ground loop hum, and since this is a rather trivial problem to resolve (I wish!) at first I figured that any of them would probably work just fine. But maybe not... You see, the quality of the internal transformers will have a huge effect on the quality of the electrical signal being processed. It is difficult to "get a handle" on both bass and treble frequencies at the same time. So a high-quality transformer is essential for good results. After looking at quite a few of the units offered, I found that the electrical specifications of the Rolls HE18 were very good, with no hype or outrageous claims made. As an engineer, I appreciate that honesty. And a big plus (for me, anyway,) is that the HE18 is marked as being made in the U.S.A. ... I have seen other devices that claim to eliminate ground loop hum, and since this is a rather trivial problem to resolve (I wish!) at first I figured that any of them would probably work just fine. But maybe not... You see, the quality of the internal transformers will have a huge effect on the quality of the electrical signal being processed. It is difficult to "get a handle" on both bass and treble frequencies at the same time. So a high-quality transformer is essential for good results. After looking at quite a few of the units offered, I found that the electrical specifications of the Rolls HE18 were very good, with no hype or outrageous claims made. As an engineer, I appreciate that honesty. And a big plus (for me, anyway,) is that the HE18 is marked as being made in the U.S.A. And so, I placed my order. When the HE18 arrived, I was surprised at the weight of the unit. It must have a pair of transformers with a lot of iron in them. This suggests that the HE18 should have good bass response. (Lightweight transformers usually give the sound a thin or distorted bass.) After admitting the attractive finish and the clear silk screening of the case, I read through the instruction and data sheet. Again, my inner engineer was happy to see all the specifications detailed nicely, with the added bonus of the actual schematic diagram included. While most users will never need to refer to the diagram, including it does please engineering types and tinkerers. Thank you Rolls, for that little detail. OK, now for the fun; let’s put it on the test bench and see if the specs are accurate or not. Short answer, they are correct. I have been plagued by an intermittent ground loop hum due to the audio source being separated from the audio processor and amplifier by about 20 feet of interconnecting cable and also by each end of the system being on different power phases and earth ground connections. The hum included not only the usual 60 Hz hum, but also various harmonics of 60 Hz along with other assorted clicks and buzzes from time to time. Connecting the HE18 was simple. I used the RCA connectors since those matched the patch cables I had on hand. Note that you can use either RCA connections or the usual ¼”TRS phone plugs which may be used in either monaural or stereo mode. There is also a 3.5mm stereo input jack which allows you to use a normal 3.5mm male-to male patch cable to connect the HE18 to a computer headphone jack.) One caution – the HE18 is must NOT be placed between and amplifier and a loudspeaker or the HE18 will be damaged. An HE18 that is damaged in this manner is not covered under the 1 year warranty. So, how well does it work? First of all, after connecting the HE18 and powering the amplifier on, I thought the amplifier must have failed, because I could not hear any hum or buzz at all, not even at full volume. Excellent! Score 1 for the HE18. As for the quality of the music passing through the HE-18, I could not discern any difference in the sound with or without the HE18 in the signal path, using either headphones or loudspeakers. And it sure is nice to be able to listen to music now without the constant background buzz and hum. Would I recommend it? Yes. It does just what it says it will without noticeable change in the sound quality and for a reasonable price.
Verified purchase: YesCondition: NewSold by: downtownphoto
by kevicom-5
Mar 02, 2017
Inexpensive on e-bay, but worth the regular price.
Rolls Hum Eliminator is a beast at working through the buzz. There are other things you can do or products you can buy, but I highly recommend the Rolls. One of the Best items I have Ever purchased for a sound system.
Verified purchase: YesCondition: NewSold by: savistore
by kendrikt1
Aug 10, 2021
Product did not work for me.
I tried to use this product to remove a slight buzz out of my connection of a turntable to a receiver. the Buzz off made the buzz worse, also created a hum I and i believe damaged the right channel of my pre-amp.
Verified purchase: YesCondition: NewSold by: downtownphoto
by sirmarty517
Apr 27, 2016
Gets the hum out
Hooked up an amp to receiver and got hum. Found the rolls he18 and stopped the hum.
Verified purchase: YesCondition: NewSold by: adorama
by magicleeyours
Oct 05, 2021
No More Buzz
This device does exactly what it's suppose to. We have a long run of RCA cables at 150feet. The 60 cycle hum is completely gone.
Verified purchase: YesCondition: NewSold by: downtownphoto

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Rolls HE18 2-channel Audio Hum and Buzz Remover

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Item specifics

Item description from the seller

Sweetwater Sound

99.5% positive feedback•1.2M items sold

Detailed seller ratings

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Seller feedback (467,259)

Product ratings and reviews

Most relevant reviews

Just the Ticket to Eliminate Hum and Buzz

Inexpensive on e-bay, but worth the regular price.

Product did not work for me.

Gets the hum out

No More Buzz

More to explore:

Sweetwater Sound

99.5% positive feedback•1.2M items sold

Detailed seller ratings

Popular categories from this store

Seller feedback (467,259)