Operating Instructions
Overview
Congratulations on your choice of the SUBWAY® BASS DI-PREAMP and welcome to the MESA/Boogie® family! First, we would
like to thank you for choosing us as your amplifier company and trusting us to help create your musical voice. This is something we
never take for granted, and you’ll find that we are here and ready to assist you should you ever need help. Our goal is to help you
sound your best at all times! We feel confident that your new Bass DI-PREAMP will bring you many years of reliable service, reward-
ing inspiration and create for you a newfound freedom to express your music.
You have chosen a Bass DI-PREAMP bred of a fine heritage, and this model is our testament to our legacy of tone. Its forefathers
can be traced back to the very first MESA amplifier ever built, the MESA 450 Bass Head. In fact, the first 5 MESA amplifiers built in
the Lagunitas mountain shack were Bass amps…a piece of trivia little known and overshadowed by our overwhelming notoriety for
guitar amplification. But we’ve always loved the Bass, and have—since day one—been committed to elevating its stature through our
art form. The bloodline for MESA bass continued with the first rack-mount chassis bass amplifier in 1980, the D-180. The mid-eighties
saw the introduction of the BASS 400 and later in 1988, the BASS 400+ with its stunning Pitch, Punch and Power delivered by an
additional 6 x 6L6s to bring the total to twelve 6L6s in the mighty power section.
The 400+ went on to become a classic used by the world’s most talented bassists for two decades. Paul McCartney, Mark King,
Stanley Clark, Jack Blades, Michael Anthony, Blasko and Bootsy Collins, are but a few of the international stars that put the 400+
center stage to anchor the band during its 20 year build cycle. Those iconic amps still bring top dollar when you can find one chang-
ing hands on the pre-owned market.
Tone Freaks seeking a versatile & compact preamp solution for multiple pro applications - Rejoice! The SUBWAY Bass DI-PREAMP
is the next step in the MESA Bass Bloodline. The Subway preamp circuit has established itself as a perfect balance of tone and
functionality for all players and styles. That exact preamp circuit is now packaged in a portable, studio quality D.I. format with an in-
novative and complete feature set to cover practically any gigging, rigging and studio application you can dream of. The thoughtful
I/O and layout makes the Subway D.I. Pre a swiss-army knife for world-class bass tone in any application. The SUBWAY® BASS
DI-PREAMP is built in Petaluma, CA with the World’s Finest Materials.
VOICING
ACTIVE
PASSIVE
POWER
ON
DEEP
INPUT BASS TREBLE MASTER
LOW MID
HIGH MID
INSTRUMENT
INPUT
THRU
OUTPUT
SUBWAY®
BASS DI-PREAMP
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BASS DI-PREAMP