DESCRIPTION

The Black Cube Linear's power supply is built in; there is an IEC connector in the rear, so you can pick a power cord that sounds good to you. Next to the IEC connector are the on/off switch and two pairs of gold-plated, Teflon-insulated RCA jacks: an input and an output pair. You can, therefore, feed the signal through the Black Cube Linear and use the front-mounted volume control to adjust the line-level-output volume as well as the headphone volume, making the Black Cube Linear a single-input line-stage preamp as well as a headphone amp.