KENT ARMSTRONG / MM2

This is a bass preamp circuit from KENT ARMSTRONG. It naturally boosts the low frequencies of your instrument while suppressing noise.

■Bass Preamp Circuit
■Active
■2-Band Equalizer
※Potentiometer (shaft diameter 6.7mm, potentiometer diameter 16.5mm), Preamp Unit (42.6W x 11H x 23.4Dmm)

~From the manufacturer's website~
Some active circuits produce a distinctive noise when boosting high frequencies, but Kent Armstrong's preamps suppress this noise while delivering a thick, clear ensemble sound. As for the midrange, rather than artificially improving the instrument through the circuit's power, the preamp draws out the instrument's true potential, providing appropriate compensation for each playing style. This produces the optimal tone for a variety of playing styles, including fingerpicking, slapping, and picking. In addition, some preamps offer a powerful boost to the low end, creating a powerful bass response when used alone, but when used in a band, the lows become blurred and the volume level disrupts the ensemble. However, this Kent Armstrong preamp delivers a tight, focused tone with a clear sense of pitch, while still providing ample volume. It naturally boosts the low frequencies inherent in the instrument, rather than the physical lows you get from the low-B or low-F# of a multi-string bass. Some people shy away from instruments equipped with active circuits because they sound filtered, but these preamps are designed with the utmost emphasis on bringing out the best in the instrument, allowing each to function naturally, like a passive tone.

■Wiring Diagram
*Same for 2-Band / 3-Band