Please only purchase from authorized Pro-Ject
Partners. The international Pro-Ject 2 year warranty is only valid when bought from official Partners.
Pro-Ject Head Box RS
Highend headphone amplifier
Fully balanced double mono design
Tube input stage
Class-A FET output stage
Switchable output impedance for ultimate performance
Superior low distortion
Low noise components for ultimate dynamic & detail
Output: 6,3mm socket
Full metal casing in silver or black
Optional Upgrade: Linear power supply Power Box RS Uni 1 (or 4) for further improved sound quality
Ultimate highend headphone sound!
Head Box RS is a reference quality headphone amplifier with fully balanced tube input stage (double triode tube 6922) and single ended, class A FET (Field Effect Transistor) output stage. It offers balanced and unbalanced input as well as balanced and un-balanced by-pass connectors for using the pass-through input signal with other components.
Volume control consists of a precise volume regulator with matched resistance between left and right channel.
A special output impedance selector allows to adjust output impedance in three steps 5, 20 and 50 ohms to achieve better im-pedance matching between amplifier and headphones. Some experiments with different positions of output impedance selector are highly recommended to get the ultimate sound experience for your headphone.
An advanced multi-stage power supply with four different output voltages is used to achieve the best possible S/N ratio for out-standing reproduction of detail, dynamics and imaging with any dynamic headphone!
The addition of linear power supply Power Box RS Uni 1-way (SRP 399,00) or Power Box RS Uni 4-way
CAUTION: Please check the power connection of your Head Box RS on the rear side. In case of an 18V 2.5 connection, a Connect It Power MiniXLR 18V 2.5 adapter cable is necessary to power the unit with a Power Box!