5M1 - Biz
*click on a photo above to see a larger preview
A unique sounding, three amplifier, discrete microphone preamp module.
Designed to work in standard “500” 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, 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. The Biz uses two KDJ3 opamps and one KDJ4 opamp.
Also be sure to check out the Purple Audio Pants Preamp!
Output level control
Input and output tricolor LED metering
DI Load switch for front panel input 33kohms as in the original Biz or 100kohms for a more open tone
Discrete signal path
Over Current Resettable Fused (prevents any module problem from affecting your rack)
ROHS – Lead Free
Maximum output level +27dBu
Frequency response 10hz – 70kHz +/- 1db
(3db down at 100kHz)
Maximum gain 60dB in single mode
Maximum gain 75dB in dual mode
Maximum gain 35dB in single mode
Maximum gain 50dB in dual mode
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
*= Not currently available
Submit your review
I bought the Biz last week for tracking electric guitars. Great detail and presence from the Biz! Every pick articulation is there and the sound is very much in-your-face.
Good sound! robust, ideal for any use and any mic. TOP!