Introducing the Biz Mk: the same Biz you love with two new features:
Mic / Line switch for rack input
- Bridging line input for high output mics or line level sources -
Use with our Moiyn 8x2 mixer module in the Sweet Ten rack for mic or line mixing
- DI Load switch for front panel input - 33kohms as in the original Biz
or 100kohms for a more open tone
A unique sounding, three
amplifier, discrete microphone preamp module designed to work in standard "500"
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, Level, 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
- Maximum output level
+27dBu - Frequency response 10hz ? 70kHz +/- 1db (3db down at 100kHz) -
Transformer input: Mic mode - Maximum gain 60dB in single mode - Maximum
gain 75dB in dual mode
gain 35dB in single mode - Maximum gain 50dB in dual
- Maximum gain 30dB in
single mode - Maximum gain 40dB in dual mode - Beginning Serial Number
1600 February 2008: - Over Current Resettable Fused (prevents any module
problem from affecting your rack) - ROHS - Lead Free
Pin 1: Chassis Ground Pin 2: Output A + Pin 4: Output A - Pin 5:
Audio Ground Pin 3: Output B + (Purple Audio Rack Only - XLR OUT 2)
Pin 6: Output B - (Purple Audio Rack Only - XLR OUT 2) Pin 7: Input -
Pin 8: Input - Pin 9: Input + Pin 10: Input + Pin 11: NC Pin
12: +15 or 16VDC 80ma Pin 13: Audio Ground Pin 14: -15 or 16VDC 80ma
Pin 15: +48VDC
0Purple Audio BIZ MK
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