Mercenary Audio - Purple Audio "The Biz" 500 Series Mic Pre

The BIZ 500 series mic pre by Purple is by far the most unique sounding 500 series mic pre in our not so humble opinion. The myriad of tonal options available on this little pre are remarkable and made possible by not only employing Lundahl input transformers and Class-A Op-Amps but more importantly providing three ways in which to blend and route the signal.

Purple Audio "The Biz" features

A unique sounding, three amplifier, discrete microphone preamp module designed to work in standard "500" Series racks. The smooth Gain control helps you dial in the sound you want. If the output level is too high (the Class A/B output opamp can pump out up to +27 dBu),you can ride the level down with the separate Level control. Pressing the "Dual" switch splits the gain between two of our Class A opamps, enabling up to 75 dBu of clean gain, making the Biz a perfect match for ribbon microphones.

With different Gain, Fader, and Dual settings the Biz can produce an infinite variety of tonal variations with the same amount of output level. The front panel DI helps you record instruments and line level sources with unrivaled clarity and punch. Two LEDs clearly indicate signal level for the gain and output stages at a glance, turning green to indicate signal present, yellow for 10dB below clipping,and red for clipping.

For easy serviceability and tweaking, the Purple discrete opamps can be replaced with any standard discrete opamp or a DIP-8 IC. The Biz uses our custom output transformer which provides two isolated outputs (when supported by the chassis).

SPECIFICATIONS

Maximum output level: +27dBu
Frequency response: ą1db 10hz - 70kHz - (3db down at 100kHz)
Transformer input:
Maximum gain single stage: 60dBu
Maximum gain dual stage: 75dBu
Direct input:
Maximum gain single stage: 30dBu
Maximum gain dual stage: 40dBu

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