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Radial Engineering StageBug SB-6
Passive Stereo Line Isolator

OUR PART #  STAGEBUG-SB6

Our Price: $99.99
List Price: $115.00
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The Radial Engineering StageBug® SB-6 is a high performance 2-channel passive audio isolator designed to accommodate both balanced and unbalanced signals and work effectively at eliminating noise when used with instruments, consumer electronics as well as professional line-level devices.

The design begins with 1/4" TRS inputs and outputs to accommodate both TRS and mono type connectors. The unique circuit retains the balanced signals or automatically converts them from hi-Z to lo-Z (1/4" mono to TRS) or lo-Z to hi-Z (1/4" TRS to mono) depending on the connector in use. You simply connect and the SB-6 does the work for you! Inside are two ultra-linear Eclipse transformers that sound great as they deliver ruler flat performance from 20 Hz to 20 kHz. This is augmented with a -10dB input pad to handle extra loud source devices and a polarity reverse on output B for phase aligning stereo signals. As the circuit is passive, no power is required – simply plug in and play. As with all Radial products, the SB-6 is made in Canada and features 16 gauge steel construction for use on the road and finished in a durable powder coat finish.

These features combine to make the SB-6 Isolator a wonderful solution to help rid system noise in two channel audio systems, stereo guitar racks and pedalboards.

Radial Engineering StageBug SB-6 Features:

  • Isolator for balanced and unbalanced signals
  • Eliminates hum and buzz caused by ground loops
  • Exceptionally linear from 20 Hz to 20 kHz
  • Automatically configures for hi-Z or lo-Z signal chains

Radial Engineering StageBug SB-6 Specifications:

  • Audio circuit Type:  Passive Transformers
  • Frequency Response:  20 Hz - 20 KHz +/-1 dB
  • Dynamic Range:  > 140 db 
  • Maximum Input:  > +25 dBu
  • Gain:  -2dB
  • Total Harmonic Distortion:  < 0.0008% @ 1 kHz
  • Phase Deviation:  > 5° @ 30 Hz
  • Input Impedance:  Varies with Load/47K
  • Output Impedance:  600 Ohms
  • Transformer:  Eclipse Custom
  • Input Pad:  -15 dB
  • Polarity:  180° reverse
  • Ground Lift:  Disconnects TRS sleeve at output
  • Input Connector:  1/4" TRS phone
  • Output Connectors:  1/4" TRS phone
  • Construction:  14 gauge steel chassis & outer shell
  • Finish:  Durable powder coat
  • Size (LxWxD):  4.5" x 1.85" x 1.35" (114mm x 47mm x 34mm)
  • Weight:  0.9 lbs (408 grams)

Radial Engineering StageBug SB-6
Passive Stereo Line Isolator

OUR PART #  STAGEBUG-SB6

Product Videos:

Product Information:

The Radial Engineering StageBug® SB-6 is a high performance 2-channel passive audio isolator designed to accommodate both balanced and unbalanced signals and work effectively at eliminating noise when used with instruments, consumer electronics as well as professional line-level devices.

The design begins with 1/4" TRS inputs and outputs to accommodate both TRS and mono type connectors. The unique circuit retains the balanced signals or automatically converts them from hi-Z to lo-Z (1/4" mono to TRS) or lo-Z to hi-Z (1/4" TRS to mono) depending on the connector in use. You simply connect and the SB-6 does the work for you! Inside are two ultra-linear Eclipse transformers that sound great as they deliver ruler flat performance from 20 Hz to 20 kHz. This is augmented with a -10dB input pad to handle extra loud source devices and a polarity reverse on output B for phase aligning stereo signals. As the circuit is passive, no power is required – simply plug in and play. As with all Radial products, the SB-6 is made in Canada and features 16 gauge steel construction for use on the road and finished in a durable powder coat finish.

These features combine to make the SB-6 Isolator a wonderful solution to help rid system noise in two channel audio systems, stereo guitar racks and pedalboards.

Radial Engineering StageBug SB-6 Features:

  • Isolator for balanced and unbalanced signals
  • Eliminates hum and buzz caused by ground loops
  • Exceptionally linear from 20 Hz to 20 kHz
  • Automatically configures for hi-Z or lo-Z signal chains

Radial Engineering StageBug SB-6 Specifications:

  • Audio circuit Type:  Passive Transformers
  • Frequency Response:  20 Hz - 20 KHz +/-1 dB
  • Dynamic Range:  > 140 db 
  • Maximum Input:  > +25 dBu
  • Gain:  -2dB
  • Total Harmonic Distortion:  < 0.0008% @ 1 kHz
  • Phase Deviation:  > 5° @ 30 Hz
  • Input Impedance:  Varies with Load/47K
  • Output Impedance:  600 Ohms
  • Transformer:  Eclipse Custom
  • Input Pad:  -15 dB
  • Polarity:  180° reverse
  • Ground Lift:  Disconnects TRS sleeve at output
  • Input Connector:  1/4" TRS phone
  • Output Connectors:  1/4" TRS phone
  • Construction:  14 gauge steel chassis & outer shell
  • Finish:  Durable powder coat
  • Size (LxWxD):  4.5" x 1.85" x 1.35" (114mm x 47mm x 34mm)
  • Weight:  0.9 lbs (408 grams)
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