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Rolls HE18 Two-Channel Audio Hum and Buzz Remover

Rolls HE18 Two-Channel Audio Hum and Buzz Remover
Key Features
  • For Musicians and Audio Professionals
  • Helps Eliminate Ground Hum and Buzz
  • Dual Channel Operation
  • Inputs: 2 x 1/4" TRS, 2 x RCA, 3.5mm TRS
Perfect for musicians and audio professionals, the Rolls HE18 is a two-channel audio hum and buzz remover that virtually eliminates 60 Hz hum from a balanced or unbalanced line. The unit also converts unbalanced signals into balanced signals and vice versa, improving the overall noise performance of your audio system. Easy and convenient to use, the HE18 is completely passive and doesn't require power to operate.
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Will this take the left and right trs input and ...

Will this take the left and right trs input and convert it to rca left and right output?
Asked by: Joseph
Answered by: Raul M
Date published: 2021-10-01


Can this Rolls HE18 help reduces the hum noise for Audio Technica turntable with MC cartridge & Nakamichi control amp ?
Asked by: Anonymous
I have run into this problem in the past on multiple occasions. Check all wiring and cable connections inside the turntable (requires turntable disassembly in many cases to access internal connections) and clean all of those connections with a quality product for that purpose. This problem is usually caused by galvanization between dissimilar metals used on the mating connectors. Your best bet here is to have gold plating on both mating connector. Check and clean both cable ends as well.
Answered by: jim w.
Date published: 2018-08-27

Vendor/installer inserted a device (magna?) to ...

Vendor/installer inserted a device (magna?) to route all components into a graphic equalizer, then out to speakers. That worked, but it introduced a faint flutter into the output. Even when all components, including the tuner/amp are powered down, if the 'magna' has power to it the flutter remains. The Rolls is said to eliminate flutter, not hum. Is that true? Is there a better device to use with the equalizer, designed for flutter as wells as hum? or just flutter?
Asked by: Kenneth
The Rolls HE18 will only remove buzz and hum.
Answered by: David M
Date published: 2022-01-27

Will it work for 120hz signals? I have a buzz ...

Will it work for 120hz signals? I have a buzz from my turntable and I have tried almost everything and I'm still getting a buzz
Asked by: Trevor
This style of buzz eliminator is designed for 50 to 60hz.
Answered by: Daniel
Date published: 2020-07-01

Is this good for car subwoofer hum?

Is this good for car subwoofer hum?
Asked by: Tim
If the cause of the hum is created by a ground loop, then the Rolls HE18 Buzz Off may help to resolve the problem.
Answered by: Lisa S
Date published: 2022-01-03


can it be used for 50 Hz signals?
Asked by: Anonymous
The BUZZ OFF will block 50 Hz hum and the buzz produced by the line noise harmonics from AC Mains powered audio systems. Use short output cables from the HE15 the destination of the audio signal. This seems to help cut down the common mode noise on the long cable segment. This is a great box to have whenever connecting a laptop pc to a public address system to cut out unwanted noise. It works to eliminate noise that is sometimes present when presenters laptop is connected with video to projector and audio to amplifiers.
Answered by: SAMUEL M.
Date published: 2018-08-27
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