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Kopul HMX-2 Humbuster - Dual-Channel Hum Eliminator with XLR and 1/4" Connectors

BH #KOHMX2 • MFR #HMX-2
Kopul HMX-2 Humbuster - Dual-Channel Hum Eliminator with XLR and 1/4" Connectors
Key Features
  • Eliminates 60 Hz Ground Loops
  • Silences Unbalanced Cable Buzz and Hum
  • Can Be Used as DI Box
  • Preserves Signal Integrity
Designed for studio, DJ, and live sound applications, the Kopul HMX-2 Humbuster is a dual-channel hum eliminator with both XLR and 1/4" (6.35mm) TRS/TS input and output connectors. Using a fully passive design, without the need for external power, the device can eliminate unwanted 60 Hz hum and buzz caused by ground loops in your signal path.
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Kopul HMX-2 Overview

  • 1Description
  • 2Eliminates Hum
  • 3Quiets Cable Noise
  • 4Preserves Signal Integrity
  • 5Balanced to Unbalanced Conversion (and Vice Versa)
  • 6Direct Box
  • 7Compatibility

Designed for studio, DJ, and live sound applications, the Kopul HMX-2 Humbuster is a dual-channel hum eliminator with both XLR and 1/4" (6.35mm) TRS/TS input and output connectors. Using a fully passive design, without the need for external power, the device can eliminate unwanted 60 Hz hum and buzz caused by ground loops in your signal path.

Housed in a road-worthy rugged metal enclosure, the device can be inserted between any two pieces of line-level equipment at +4 dBu or -10 dBv to quiet hum and buzz caused by excessively long unbalanced cable runs, or when a connection path forms between the grounds of two pieces of equipment in the signal chain. Ground loops are removed while preserving the integrity of the original signal.

The device will automatically convert between balanced and unbalanced signals (and vice versa) when the 1/4" (6.35mm) TRS/TS and XLR connectors are used in any combination. This also allows the Humbuster to be used as a direct box for connecting the unbalanced output signal of a musical instrument directly to the balanced input of a mixing console. The design utilizes high-quality internal components and gold-plated XLR connectors to reduce noise and maintain the fidelity of your signal.

Eliminates Hum
Removes unwanted 60 cycle hum and buzz caused by ground loops
Quiets Cable Noise
Reduces interference and noise caused by excessively long unbalanced cable runs
Preserves Signal Integrity
Removes hum and buzz without compromising signal quality
Balanced to Unbalanced Conversion (and Vice Versa)
Allows you to automatically convert between balanced and unbalanced signals
Direct Box
Allows you to directly connect the unbalanced output of a musical instrument to the balanced input of a mixing console
Compatibility
Supports balanced XLR, balanced 1/4" (6.35mm) TRS, and unbalanced 1/4" (6.35mm) TS input and output connectors
UPC: 847628587311

Kopul HMX-2 Specs

Inputs
2x 1/4" (6.35 mm) TRS/TS
2x XLR-3F
Outputs
2x 1/4" (6.35 mm) TRS/TS
2x XLR-3M
Frequency Response
20 to 70,000 Hz
Distortion
< 0.005 THD at 1 kHz
Crosstalk
> -97 dB
Source Impedance
Max: 1 kOhm
Min: 10 kOhms
Dimensions
1.4 x 4.5 x 3.25" (3.5 x 11.4 x 8.3 cm)
Weight
15.2 oz (431 g)
Packaging Info
Package Weight
1.26 lb
Box Dimensions (LxWxH)
8.3 x 6.65 x 2.3"

Kopul HMX-2 Reviews

See any errors on this page? Let us know

For the configuration of connecting &quot;1/4&quot; TRS in ...

For the configuration of connecting &quot;1/4&quot; TRS in to XRL out&quot;, what is the pinout for the XRL connector? Does it use TRS L or R?
Asked by: Philip
The Kopul HMX-2 Humbuster - Dual-Channel Hum Eliminator with XLR and 1/4&quot; Connectors is wired for balanced mono 1/4&quot; TRS connectors, not unbalanced stereo.
Answered by: Calvin M
Date published: 2024-03-17

Is this transformer based? Does this not allow ...

Is this transformer based? Does this not allow phantom power to pass though?
Asked by: Lino
No, the Kopul HMX-2 Humbuster - Dual-Channel Hum Eliminator with XLR and 1/4&quot; Connectors is a passive device that does not pass phantom power. It is not intended for microphone use, it is to be used with instrument or line level devices.
Answered by: Manny C
Date published: 2024-02-18

question

This says 60Hz, is there a model that will work in Pal 50Hz countries?
Asked by: Filmview
This is not a powered unit, it's completely passive and only connects to your audio feeds, so the frequency of your AC power is irrelevant. In my opinion the information about this unit should read &quot;eliminates unwanted hum and buzz caused by ground loops&quot;.
Answered by: Mike
Date published: 2023-04-19

question

Is there a version of this device that can eliminate hum generated by a turntable ( Pro-ject turntable connected via 2 heavy duty shielded RCA cables to a Denon AVR-X4200W integrated amp; I have tried a number of possible fixes to no avail). Or could this device be used for this purpose with some adaptation?
Asked by: Anonymous
B&amp;H sells adapters and cables like GPR101 or CPR202 that will let you connect your turntable to the Humbuster to the amp. You may also consider picking up 3-to-2 prong grounding adapters to see if that works. There are some turntables that have inherent hum due to build quality or wiring. I hope you get to enjoy your vinyl again soon!
Answered by: jonathan Z.
Date published: 2018-08-25
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