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RapcoHorizon ISO BLOX In-Line Mic-Level Isolation Transformer (600 Ohms)

BH #RAISOBLOX • MFR #ISOBLOX
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RapcoHorizon ISO BLOX In-Line Mic-Level Isolation Transformer (600 Ohms)
Key Features
  • Removes Ground-Loop Hum
  • For Use on Microphone Lines
  • Stage, Studio, Broadcast Applications
  • 1-to-1 Level Matching
Great for studio, stage, or broadcast applications, the RapcoHorizon ISO BLOX is an in-line isolation transformer, which offers musicians and engineers a quick fix for removing unwanted ground-loop hum between a microphone and a mixing board. The unit features XLR connectors at both ends and inconspicuously fits into your signal path, retaining a 600-ohm load and source impedance without adding or losing signal level.
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RapcoHorizon ISOBLOX Overview

Great for studio, stage, or broadcast applications, the RapcoHorizon ISO BLOX is an in-line isolation transformer, which offers musicians and engineers a quick fix for removing unwanted ground-loop hum between a microphone and a mixing board. The unit features XLR connectors at both ends and inconspicuously fits into your signal path, retaining a 600-ohm load and source impedance without adding or losing signal level.

Key Features
  • Removes hum caused by ground loops
  • For use on microphone lines
  • In-line XLR female to XLR male transformer
  • 600-ohm impedance
  • 1-to-1 level matching
  • Compact and rugged design
UPC: 765811302445

RapcoHorizon ISOBLOX Specs

Key Specs
In-Line Accessory Type
Isolation Transformer
Transformer Type
Isolation
Number of Channels
1
Inputs/Outputs
1x XLR 3-Pin Female Input
1x XLR 3-Pin Male Output
General
In-Line Accessory Type
Isolation Transformer
Transformer Type
Isolation
Input / Output Level
Input: Mic Level
Output: Mic Level
Number of Channels
1
Connectivity
Inputs/Outputs
1x XLR 3-Pin Female Input
1x XLR 3-Pin Male Output
Performance
Impedance
600 Ohms
Physical
Dimensions
3.5 x 1.3 x 1" / 8.9 x 3.2 x 2.5 cm
Packaging Info
Package Weight
0.255 lb
Box Dimensions (LxWxH)
8.3 x 2.75 x 1.65"

RapcoHorizon ISOBLOX Reviews

Did it’s job

By David
Rated 5 out of 5
Date: 2023-09-13

These devices did what they are advertised to do…eliminate ground loop hum.

Nice device

By Basssikly
Rated 5 out of 5
Date: 2016-11-10

Nice device for protecting equipment from global phantom power.

See any errors on this page?

question

is this used to get rid of hum?
Asked by: Dave S.
Yes, this device typically will remove the 60Hz AC hum generated by connecting two devices that are not sharing the same AC ground.
Answered by: Mark S.
Date published: 2018-08-28
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