Digital MPA Tube Mic Pre from ART
February 15, 2001The Digital MPA is the first product in ART's newly announced Digital Innovations Series, offering
enhanced discrete front end and two 12AX7A tubes with Art's unique circuitry.
Take advantage of this world class processing via the analog and digital outputs. AES/EBU,
S/PDIF, TOSLINK, and ADAT interfaces allow connection to the broadest range equipment. The
Digital MPA provides 24-bit or it can adapt to 16-bit applications with the push of a button. The
A/D is front panel adjustable from 44.1 to 96K or syncs to ADAT or external word clock (32KHZ to
100KHz).
The Digital MPA circuitry is a hybrid design utilizing the strengths of all available technologies. The
active balanced triple-differential transistor design with local feedback provides excellent CMRR
and lower noise than the typical transformer/tube front end. The 12AX7A tube section running on
a regulated supply provides gain while maintaining the dynamic range of the previous
stage and controlled overload characteristics. Insert jacks between the analog and digital section
allow patching in additional signal processing before entering the digital realm. Separate
balanced analog outputs and multiple digital outputs possess individual level controls allowing
simultaneous use. While the new Digital MPA accepts full line levels, an additional high-Z 1/4” input
makes the Digital MPA useful as a DI in studio and live applications.
The digital output section can be patched into directly via 1/4”insert jacks between the analog and
digital sections. This allows additional signal processing before entering the digital realm or use
as a standalone A/D converter. Professional and consumer output formats are
selectable as well as choice of optical format. You can even patch into any ADAT stream and select
which pair (or ALL) of channels the Pro MPA w/ DIO transmits. The first of the Digital Innovations
Series, the Digital MPA was conceived, designed and manufactured to the highest standards to
provide years of quiet, reliable performance. For more information, visit their web site at www.artproaudio.com. | 
