This compact unit allows the connection of a balanced analogue stereo line input via RJ45 with ‘StudioHub+’ pin-out. The RJ45 connection is located on the rear facing panel of the HPR1. The front facing panel has a rotary volume control and 6.35mm headphone jack socket for use with headphones with an impedance above 150ohms.

An internal transformer with a ratio of 2:1 ensures that any headphone load presented at the output is reflected through to the input at a 1:4 ratio. The headphone level will be at half the level on the incoming signal with the volume control at 100%.