Precision-machined from solid aircraft-grade aluminium billet, the Prima offers both remote control and front panel operation. Prima’s fascia offers volume and balance controls while its push-button controls atop the unit offer input selection and tape line selection, the latter enabling its tape outputs to be selected for recording from source components. Further design features include a top panel display, offering input choice and volume information, plus a porthole which enables the internal circuit board to be seen.

The Prima also benefits from a custom Ultra-High-Frequency power supply, which delivers efficient and fast energy charge/discharge for delivering power to capacitors when required. Prima offers fully balanced circuitry throughout and useful flexibility with five inputs, four unbalanced RCA and one balanced XLR, plus a balanced XLR output and a tape output. For added versatility, Prima’s audio circuit offers six independent input gain adjustments for the five inputs and low-impedance outputs.