The Signature U2B4 is a broadcast specification twin stereo unbalanced to balanced analogue audio interface that is equally suitable for professional & home studio use.

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

As well as providing a balanced interface the U2B4 also provides variable gain/ loss to allow the lower level audio outputs produced by domestic equipment to be raised to meet the higher level broadcast and pro audio standard.

The two stereo audio inputs (which can work as quad monos) are on gold plated RCA phono connectors. These inputs are electronically isolated with RF filters to prevent extraneous signals, and fed via multi-turn preset gain controls on the rear panel to two pairs of electronically balanced and isolated outputs on Neutrik XLRs.

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.

The Signature U2B2 is a broadcast specification single stereo unbalanced to balanced analogue audio interface that is equally suitable for professional & home studio use.

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

As well as providing a balanced interface the U2B2 also provides variable gain/ loss to allow the lower level audio outputs produced by domestic equipment to be raised to meet the higher level broadcast and pro audio standard.

The stereo audio input (which can work as dual mono) is on gold plated RCA phono connectors. This input is electronically isolated with RF filters to prevent extraneous signals, and fed via multi-turn preset gain controls on the rear panel to a pair of electronically balanced and isolated outputs on Neutrik XLRs.

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.

The Signature ADDA 1 is a broadcast specification, bi-directional, analogue to digital, and digital to analogue audio converter.

The analogue inputs and outputs are available separately on balanced XLR connections, or unbalanced RCA phono connections.

The digital inputs and outputs are available separately in three formats:- 3 pin XLRs using AES- RCA phono plug using S/PDIF- optical connectors using TOSlink

The digital output is 24 bit and can be selected to be from 44.1kHz to 192 kHz.

The DARS (Digital Audio Reference Signal) can also be input on a separate 3 pin XLR input, or via the word clock input on a BNC connection.

The front panel features a 6.35mm stereo jack socket for headphones monitoring, with a full size pot to adjust the volume level. A front panel screen shows current operation mode and allows configuration of all unit parameters.

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.

The Signature ADC 1 is a broadcast specification, stereo analogue to digital audio converter.

The analogue inputs are available separately on balanced XLR connections, or unbalanced RCA phono connections.

The digital outputs are available separately in three formats:- 3 pin XLRs using AES- RCA phono plug using S/PDIF- optical connectors using TOSlink

The digital output is 24 bit and can be selected to be from 44.1kHz to 192 kHz.

The DARS (Digital Audio Reference Signal) can also be input on a separate 3 pin XLR input, or via the word clock input on a BNC connection.

The front panel features a 6.35mm stereo jack socket for headphones monitoring, with a full size pot to adjust the volume level. A front panel screen shows current operation mode and allows configuration of all unit parameters.

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.

The Signature DAC 1 is a broadcast specification, stereo digital to analogue audio converter.

The digital inputs are available separately in three formats:- 3 pin XLR using AES- RCA phono plug using S/PDIF- optical connectors using TOSLINK

The analogue outputs are available separately in two formats:- balanced XLR connections- unbalanced RCA phono connections

The front panel features a 6.35mm stereo jack socket for headphones monitoring, with a full size pot to adjust the volume level.

A front panel screen shows current operation mode and allows configuration of all unit parameters.

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.

The Signature HA6+ is a broadcast specification, six way headphone amplifier, designed to operate in a mono or a stereo mode.

The HA6+ has 2 x XLR inputs that are used as the primary programme audio input, and 2 x XLR inputs that are used for the secondary aux audio input. These can be stereo, or, if a mono input, can be switched to appear on both sides of the headphones. There are left and right primary input gain controls on the rear panel, and they are on recessed screw terminals.

On the front panel there is a source control for each headphone output that allows a mix between the programme and aux input. Full left is programme only, full right is aux only, and anywhere in between is a variable mix.

Each of the six headphone amplifiers has its own volume level pot. There is also a master volume pot that controls the overall level of all amplifiers. This can be defeated via a rear panel dip switch.

Each of the six headphone outputs are available via front panel 6.35mm jack sockets, and in parallel on rear panel XLR connectors.

Rear panel inputs and outputs are electronically balanced on XLRs and can accommodate unbalanced connections if required.

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.

The Signature HA1M is a broadcast specification 2 channel headphone amplifier, designed to operate in a mono or a stereo mode.

The HA1M has 2 x XLR inputs that can be used as either a stereo input, or as 2 x mono inputs. There is a selector switch to change between mono and stereo modes.

In stereo mode, the left input goes to the left ear, and the right input goes to the right ear. Each input has its own level pot for adjusting the volume level in the left or right ear.

In the mono mode, each input goes to both headphone outputs. The level pots adjust the relevant input levels in both ears.

There are 2 x headphone outputs on jack sockets. One is 6.35mm and the other is 3.5mm. The headphone circuits can accept stereo connections, or mono connections from single earpieces. The headphone drivers are independent and so varying impedance connections can be used in either socket at the same time.

The rear panel has a single XLR output that is a mix of both inputs.

Rear panel inputs and outputs are electronically balanced on XLRs and can accommodate unbalanced connections if required.

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.

The Signature HA2+ is a broadcast specification, twin headphone amplifier, designed to operate in a mono or a stereo mode.

The HA2+ has 2 x XLR inputs that are used as the primary programme audio input. This can be stereo, or, if mono, can be switched to appear on both sides of the headphone outputs. There are left and right programme input gain controls on the front panel, and they are on recessed screw terminals.

There are also secondary, mono cue inputs. Connections are via one of 3 x 6.35mm jack sockets on the rear panel. This allows a single cue input to be connected to both headphone outputs, or each headphone amplifier can receive an individual cue input.

On the front panel there is a source control for each headphone output that allows a mix between the programme and cue input. Full left is programme only, full right is cue only, and anywhere in between is a variable mix.

Each of the two headphone amplifiers has its own volume level control. There is also a master volume control that affects the overall level of both amplifiers. This can be defeated via a rear panel dip switch.

The headphone outputs are available via 2 x front panel 6.35mm headphone sockets, and in parallel on 2 x rear panel XLR connections.

The Expedition uses Glensound’s propriety CAN headphone system. This allows multi impedance headphones to be used, from 32-1000ohm, with the same perceptual level in the headphones when the volume control is kept in a fixed position. Stereo or mono connections can also be made to the headphone sockets, including mono earpieces.

Rear panel inputs and outputs are electronically balanced on XLRs and can accommodate unbalanced connections if required.

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.

Power SuppliesThe Signature PS1 Power Station provides a fully resilient back up power supply to your Signature Series units. It contains two switch mode power supplies, each capable of powering up to three separate Signature Series units. A pair of bright front panel LEDs indicate that each power supply is on and active. The master AC power input accepts 100-240 VAC for worldwide compatibility.

Master And Back Up PowerAs well as providing a backup DC supply for up to six Signature Series units, the PS1 can also act as master DC power distribution to six Signature units.

Safety FeaturesAll outputs are individually fused so a short circuit on one will not affect any of the others.

InstallationFor ease of installation and to allow quick connectivity to other Signature Series units, every Signature PS1is shipped with 6 x 4 pin XLR DC cables which are each two metres long.

As the PS1 is only 336mm wide without the rack ears, it can easily be installed inside equipment racks, and fixed vertically via the flush mounting side wings. This will provides the convenience of power distribution or backup, without taking up any rack space.

The Signature SD1+ is a silence detector used to switch audio to a backup source when the primary audio source falls below accepted silence thresholds in level or time. These are often used on a broadcast path to prevent dead air should a technical problem occur with the audio.

The audio connections are stereo, on analogue XLRs. There is an input pair for the primary source, and an input pair for the backup source. The SD1+ can also be configured as a twin single channel silence detector. The backup source is usually coming from an audio player which can be remotely started by the SD1+ via a GPO should silence be detected.

Each channel can have the configuration parameters set independently. The threshold at which the unit detects a low level is configurable, as is the amount of time that the audio needs to be under this level before an alarm condition is triggered and the audio is switched to the backup input.

A comprehensive set of GPIOs allow for triggering external devices when the secondary input has been triggered.

Intelligent modes can be set to allow for switching back to the primary audio source once a sustained audio level has returned.

With a stereo audio source, if one channel should fail, the SD1+ can be set to switch this single input to both outputs, making a problem unnoticeable to any listeners, whilst at the same time still providing alarm outputs so the engineers can be alerted.

An internal switch mode power supply is provided along with an external ±12v DC input for the main or backup power supply of the Signature PS1 Power Station.

Silence Detection ParametersFor the detection of drops in audio level, a threshold can be specified between -60dB to -10dB. If the audio level is under this level for a set amount of time, then the SD1+ will switch to the backup source, preventing any dead air situations. The fail delay time is configurable between 5 seconds and 5 minutes. When the audio switches to the backup source, a GPO is triggered to start a backup audio source which is connected to the backup input. A GPO is created so that the engineering department are alerted. All switching between the primary and backup source is silent.

When primary audio has returned, the SD1+ can be used in manual or automatic mode. In automatic, the SD1+ switches back to the main input after a recovery delay, that’s configurable between 5-60 seconds. In manual mode, the main input must be selected via the front panel or via a GPI switch.

Stereo Or Dual MonoThe SD1+ can monitor a single stereo source and switch the output to a backup source if a silence condition is triggered. It can also act as a dual mono silence detector, taking in 2 mono sources and switching them independently, to their own backup audio in the event of a silence condition trigger.

In stereo mode, if one channel becomes silent, the SD1+ can perform two configurable functions. It can either feed the one good primary input to both primary outputs, or trigger the silence detect to switch to the backup input.

Audio ConnectionsThe audio connections are stereo on analogue XLRs. There is an input pair for the primary source, and an input pair for the backup source. The backup source can be selected to be at 0dB or +10dB. The +10dB option allows for the connection of a domestic level audio source, such as a CD or a memory card player, that may be used as the backup.

Smart Fail & Smart RecoverySmart recovery mode prevents pops and clicks from triggering the recovery switch back to the main input, and waits for a configurable period of time. This allows full recovery of the audio before switching back to the primary source.

LoopsA 25way d type connector contains all of the available GPIO, for output remote starts and alarms, and for input switching. There are GPOs to indicate if the primary or backup input is active, which can be used as an alarm that a backup switch has been activated.

Configuration ScreenA front panel screen shows visual feedback of the status of each input, and the value of the fail or recovery timer. This screen also access’s the menu for configuration.

Bypass RelaysIn event of power failure the primary audio input is switched directly to the audio output via relays, so that there is no loss of audio.

Power SupplyThe SD1 has an internal switch mode 100-240v AC power supply using an IEC connection. There is also an external ±12v DC input to connect to the Signature PS1 Power Station as the primary or backup power supply.

Signature Series Standard Features

19″ Rack Mount EarsA Signature unit can rack mount in a 1U 19” rack, regardless of the size of the unit.  Rack ears are included as standard with every unit.

Front Or Rear MountingA Signature unit can be rack mounted via the front panel or if it is more convenient, via the rear panel by simply swapping the rack ears over.

Side Wings For Flat Surface MountingA Signature unit has side wings with mounting holes at the top and bottom, allowing flush fixing from above OR underneath.

Internal Switch Mode AC Power SupplyA Signature unit has an internal switch mode AC power supply, allowing worldwide power connections from 100-240v via an IEC socket.

12V DC Power ConnectionAll Signature units (except PS1) have a 4 pin XLR ±12V DC  socket for connection to the PS1 Power Station.  This can act as the primary or backup power source.