PRO 248 engineers can use PRO STP

engineers can use PRO STP to output pink noise and test the impedance of the speaker system

and a built-in independent headphone monitoring output

DJ equipment and media players

．The momentary button to create 5VDC is used to detect the impedance of the speaker

consider purchasing at least one microphone that is better suited for SPL measurement and reserve the RTA-420’s for your spatial frequency response measurements

PRO 248 engineers can use PRO STPPRO 248 is a dual channel active DI specially developed by UNiKA for electric guitar and electric bass. It is equipped with a 260K over impedance input terminal and a special isolation transformer, which can provide very rich harmonic and overtones for musical instruments.