16-17HB7 Headphone BufferHB7 Headphone BufferOverviewThe HB7 headphone buffer is used to amplify signals for headphones. The HB7 isa two channel device. The outputs include both a stereo headphone jack and Leftand Right BNC connectors. The output level can be controlled with a Gain knob,and there is a Differential switch that allows the LEFT input to be output to the Leftand Right outputs resulting in an additional 6 dB of gain.PowerThe HB7 Headphone Buffer is powered via the System 3 zBus (ZB1PS). No PCinterface is required.FeaturesInputsThe HB7 has two inputs for signals up to ±10 V, accessed through front panel BNCconnectors labeled LEFT and RIGHT.OutputsThe outputs include both a stereo headphone jack labeled PHONO and Left andRight BNC connectors.Note: When monitoring both output channels with only one input connected, users shouldshort the unused input channel to ensure maximum channel separation.GainA single GAIN knob provides control over the signal output level in 3 dB steps from0 to -27 dB.
