I was experiencing a loud line hum. I am using Focal Shape 65 monitors in a PC setup. They are connected to an SVSound Sub hi pass output which in turn gets its signal from a U-DAC8 from MiniDSP. This one is connected via USB to my PC. My previous Alesis monitors put out clean sound, but I was looking for a sound quality upgrade. Enter the Focals. The Focals however were more sensitive to noise and put out an intolerable buzz (didn't have that problem with the Alesis). I tried a number of solutions (plugging everything into the same source of electricity, upgrading cables, USB filters, ...) and nothing worked until I happened upon the Radial SB-6. The buzzing was nearly completely eliminated. I still hear a bit if I put my ear up to the tweeter, but buzzing is inaudible at normal listening distance. Now I suppose all you pros know about this, but as a hobbyist keyboard player and music lover I had never heard of Radial. Highly recommended !!!
Radial SB-6 StageBug Stereo Isolator
Passive Direct Injection Box
EUR 180.50
Incl. VAT. Free delivery in Austria from EUR 200
Product # | 227089 |
Brand | Radial![]() |
Category | Passive Direct Injection Boxes | Brand Category | Radial - Passive DI Boxes |
Series | Radial SB |
Release date | March 2021 |
Availability | ![]() |
Shop | Availability |
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External Warehouse | ![]() |
Shipping cost: Shipping cost on demand
Description
The SB-6 helps remove noise from two channel audio systems, stereo guitar racks, and pedalboards. Two on-board isolation transformers provide a flat frequency response from 20Hz to 20kHz, while removing hum and buzz from ground loops. Dual ground lift switches help further reduce noise, and a -15dB pad allows you to handle high volume outputs without distortion. When using the SB-6 before a set of powered speakers or guitar amplifiers, a polarity reverse switch corrects frequency cancellation and ensures both speakers play back in phase with one another. The SB-6 is completely passive with no need for power, so it's easy to insert into any system to remove noise quickly.
Attributes
Product Details
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Dimension
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Properties
2x 6.3 mm Jack inputs
2x 6.3 mm Jack outputs
Switchable pad
Robust metal housing
2x 6.3 mm Jack outputs
Switchable pad
Robust metal housing
Specifications
Exceptionally linear from 20Hz to 20kHz
Automatically configures for hi-Z or lo-Z signal chains
Isolator for balanced and unbalanced signals
Eliminates hum and buzz caused by ground loops
Left Phase reverses the polarity on the left output to help phase-align stereo signals
Pad reduces the input sensitivity by 15dB for louder sources
Input 1/4'' balanced TRS or unbalanced input. The StageBug SB-6 will auto-configure depending on the jack that is used
Automatically configures for hi-Z or lo-Z signal chains
Isolator for balanced and unbalanced signals
Eliminates hum and buzz caused by ground loops
Left Phase reverses the polarity on the left output to help phase-align stereo signals
Pad reduces the input sensitivity by 15dB for louder sources
Input 1/4'' balanced TRS or unbalanced input. The StageBug SB-6 will auto-configure depending on the jack that is used
Reviews (2)

2 customers

nobody

nobody

nobody

nobody
Eliminated noise in my setup
it works
no mistery here - a box with two isolation transformers and a couple of switches - does what it's supposed to do.
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