Glensound Signature UBBU4 1RU Twin Stereo Unbalanced to Balanced & Balanced to Unbalanced Converter

ITEM #: GS-UBBU-4 MFG #: UBBU 4

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UBBU 4 - Overview

Maximum Resilience Broadcast Audio!

The Glensound Signature UBBU4 is a broadcast specification twin stereo unbalanced to balanced, and balanced to unbalanced analog audio interface that is equally suitable for professional & home studio use.

It is most commonly used for interconnecting domestic type recording/playback devices to broadcast/professional equipment.

Its primary job is to interface domestic type audio outputs (unbalanced) to the balanced audio inputs on broadcast and professional audio equipment while simultaneously connecting balanced outputs from professional equipment to the unbalanced inputs on domestic products.

As well as providing the balancing interface the UBBU4 also provides variable gain/loss to allow the two connected pieces of equipment to match audio levels.

All the stereo circuits can both work as dual mono. All the inputs are electronically isolated with RF filters to prevent extraneous signals, and fed via multi-turn preset gain controls on the rear panel to their outputs.

The rear panel gain controls are multi-turn presets to allow accurate gain setting and are also recessed to prevent accidental movement.

Power is provided by an internal switch mode power supply, with a wide input range. There is also an input for external ±12V DC power. The ±12V DC input can be connected to the optional Signature PS1 external DC Master Power Station, for situations where a redundant power supply is desirable.

A bright front panel LED indicates that the unit is operational.

Please Note: May be delivered with a black finish.

  • Features:

    • 2x unbalanced stereo input to balanced stereo output
    • 2x balanced stereo input to unbalanced stereo output
    • Can be used as mono circuits as well as stereo
    • Gain controls to adjust domestic to professional levels and vice versa
     
  • Specifications:

      Audio Balanced to Unbalanced
    • Frequency Response @ Line up: <±0.1dB, 40Hz - 20kHz
    • Gain Range: -15dB - +15dB on each output
    • Line Up Level (with 0dB Gain): -12dBu on unbalanced input = 0dBu on balanced output
    • Maximum Input Level: +28dBu
    • Maximum Output Level: +24dBu
    • Input Impedance: >50kΩ
    • Output Impedance - Distortion Ref +dBu Output:
      - 0.04% THD @ 100Hz
      - 0.04% THD @ 1kHz
      - 0.04% THD @ 10kHz
    • Noise: -103dB @ lineup unweighted RMS, 22Hz - 22kHz ref -4dBu output
    • Interchannel Crosstalk: >-90dB @ lineup 1 - 15kHz
    • Input Type: Electronically balanced on Neutrik XLRs
    • Output Type: Single ended on gold plated RCA phono sockets

      Audio Unbalanced to Balanced
    • Frequency Response @ Line up: <±0.1dB 40Hz - 20kHz
    • Gain Range: -18dB - +10dB on each output
    • Line Up Level (with 0dB Gain): 0dBu on balanced input = -12dBu on unbalanced output
    • Maximum Input Level: +28dBu
    • Maximum Output Level: +20dBu
    • Input Impedance: >22kΩ
    • Output Impedance Distortion Ref 0dBu Output:
      - 0.04% THD @ 100Hz
      - 0.04% THD @ 1kHz
      - 0.04% THD @ 10kHz
    • Noise: -98dB @ lineup unweighted RMS, 22Hz - 22kHz ref +8dBu output
    • Interchannel Crosstalk: >-90dB @ lineup 1 - 15kHz
    • Input Type: Electronically isolated on gold plated RCA phono sockets
    • Output Type: Electronically balanced on Neutrik XLRs

      Power
    • Mains Input: Filtered IEC, 100V - 240VAC (±10%), 47Hz - 63Hz
    • AC Consumption: 2.9W
    • DC Input: 4-Pin Neutrik XLR plug ±12V
    • Internal Fuse: 20mm 1A Anti surge

      Physical
    • Size (LxDxH): 13.31" x 4.84" x 1.73" (338mm x 123mm x 44mm) no rack ears; 19" (482mm)(1RU) with rack ears
    • Weight: 2.220lbs (1.00kg)
    • Mechanics: All aluminum construction, anodized and laser etched
    • Shipping Carton: Rugged export quality cardboard carton
    • Shipping Weight: 5.07lbs (2.3kg)
     
  • Item Includes:

    • 1x Mains Lead
    • 4x Rack Bolts
    • 4x Feet
    • 1x Handbook
     
  • Warranty:

    • 2 Year Warranty
     

UBBU 4 - Required Accessories

    California Residents:
    WARNING:
    Cancer and Reproductive Harm - www.P65Warnings.ca.gov