Glensound UBBU2 - Stereo Unbalanced to Balanced & Balanced to Unbalanced Converter
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Description
The Signature UBBU2 is a broadcast specification stereo unbalanced to balanced, and balanced to unbalanced analogue 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 UBBU2 also provides variable gain/ loss to allow the two connected pieces of equipment to match audio levels.
The two stereo circuits can both work as dual mono. Both 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 PS1external DC Master Power Station, for situations where a redundant power supply is desirable.
A bright front panel LED indicates that the unit is operational.
| AUDIO BALANCED TO UNBALANCED | |
| Frequency Response @ Line up | <+/-0.1dB 40Hz to 20kHz |
| Gain Range | -15dB to +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 | >50 kOhms |
| Output Impedance | Distortion ref +dBu output 0.04% THD @ 100Hz 0.01% THD @ 1kHz 0.01% THD @ 10kHz |
| Noise | -103dB @ lineup unweighted RMS 22Hz to 22kHz ref -4dBu output |
| Interchannel Crosstalk | >-90dB 1 to 15kHz |
| Input Type | Electronically balanced on Neutrik XLRs |
| Output Type | Electronically isolated on gold plated RCA phono sockets |
| AUDIO UNBALANCED TO BALANCED | |
| Frequency Response @ Line up | <+/-0.1dB 40Hz to 20kHz |
| Gain Range | -18dB to +10dB on each output |
| Line Up Level (with 0dB Gain) | 0dBu on balanced input = -12dBu on balanced output |
| Maximum Input Level | +28dBu |
| Maximum Output Level | +20dBu |
| Input Impedance | >22 kOhms |
| Output Impedance | Distortion ref +dBu output 0.04% THD @ 100Hz 0.01% THD @ 1kHz 0.01% THD @ 10kHz |
| Noise | -198dB @ lineup unweighted RMS 22Hz to 22kHz ref +8dBu output |
| Interchannel Crosstalk | >-90dB 1 to 15kHz |
| Input Type | Electronically isolated on gold plated RCA phono sockets |
| Output Type | Electronically balanced on Neutrik XLRs |
| POWER | |
| Mains Input | Filtered IEC, 100 - 240VAC (+/-10%) 47 - 63Hz |
| AC Consumption | 1.3 Watts |
| DC Input | 4 Pin Neutrik XLR plug +/-12V |
| Internal Fuse | 20mm 1A Anti surge |
| PHYSICAL | |
| Size | 338 x 123 x 44mm (LxDxH) no rack ears 482mm 19" (1RU) with rack ears |
| Weight | 1.00Kg |
| Mechanics | All aluminium construction, anodised and laser etched |
| Shipping Carton | Rugged export quality cardboard carton 610 x 420 x 130mm |
| Shipping Weight | 2.3Kg |
| INCLUDED ITEMS | |
| Mains Lead | 2 metre long (UK / Europe only) |
| Rack Bolts | 4 off Pozi head M6 |
| Feet | 4 off rubber stick on feet |
| Handbook | Full A4 handbook available to download and linked by QR code on device |
| Quick Start Guide | Printed A4 double sided quick start guide |
The Signature UBBU2 is a broadcast specification stereo unbalanced to balanced, and balanced to unbalanced analogue 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 UBBU2 also provides variable gain/ loss to allow the two connected pieces of equipment to match audio levels.
The two stereo circuits can both work as dual mono. Both 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 PS1external DC Master Power Station, for situations where a redundant power supply is desirable.
A bright front panel LED indicates that the unit is operational.
| AUDIO BALANCED TO UNBALANCED | |
| Frequency Response @ Line up | <+/-0.1dB 40Hz to 20kHz |
| Gain Range | -15dB to +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 | >50 kOhms |
| Output Impedance | Distortion ref +dBu output 0.04% THD @ 100Hz 0.01% THD @ 1kHz 0.01% THD @ 10kHz |
| Noise | -103dB @ lineup unweighted RMS 22Hz to 22kHz ref -4dBu output |
| Interchannel Crosstalk | >-90dB 1 to 15kHz |
| Input Type | Electronically balanced on Neutrik XLRs |
| Output Type | Electronically isolated on gold plated RCA phono sockets |
| AUDIO UNBALANCED TO BALANCED | |
| Frequency Response @ Line up | <+/-0.1dB 40Hz to 20kHz |
| Gain Range | -18dB to +10dB on each output |
| Line Up Level (with 0dB Gain) | 0dBu on balanced input = -12dBu on balanced output |
| Maximum Input Level | +28dBu |
| Maximum Output Level | +20dBu |
| Input Impedance | >22 kOhms |
| Output Impedance | Distortion ref +dBu output 0.04% THD @ 100Hz 0.01% THD @ 1kHz 0.01% THD @ 10kHz |
| Noise | -198dB @ lineup unweighted RMS 22Hz to 22kHz ref +8dBu output |
| Interchannel Crosstalk | >-90dB 1 to 15kHz |
| Input Type | Electronically isolated on gold plated RCA phono sockets |
| Output Type | Electronically balanced on Neutrik XLRs |
| POWER | |
| Mains Input | Filtered IEC, 100 - 240VAC (+/-10%) 47 - 63Hz |
| AC Consumption | 1.3 Watts |
| DC Input | 4 Pin Neutrik XLR plug +/-12V |
| Internal Fuse | 20mm 1A Anti surge |
| PHYSICAL | |
| Size | 338 x 123 x 44mm (LxDxH) no rack ears 482mm 19" (1RU) with rack ears |
| Weight | 1.00Kg |
| Mechanics | All aluminium construction, anodised and laser etched |
| Shipping Carton | Rugged export quality cardboard carton 610 x 420 x 130mm |
| Shipping Weight | 2.3Kg |
| INCLUDED ITEMS | |
| Mains Lead | 2 metre long (UK / Europe only) |
| Rack Bolts | 4 off Pozi head M6 |
| Feet | 4 off rubber stick on feet |
| Handbook | Full A4 handbook available to download and linked by QR code on device |
| Quick Start Guide | Printed A4 double sided quick start guide |
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Your home for all things pro audio—backed by expertise and experience. Connect with us today.
