The latest Microtubes B7K revision features great upgrades! Same tone, greater reliability, totally re-designed DI section: always-on, louder, quieter, among other upgrades and 100% handmade in Finnland.
The Microtubes B7K Bass Preamp/DI Pedal is the meanest beast of the family, and probably the most flexible and versatile Bass Overdrive out there! It features all the handy features of its little brother and much more! One of the amazing additions is the musical four band active EQ (12dB boost and cut) which rises-up exponentially the amount of tonal capabilities, giving you all the shaping, and texture options you’ll ever need. This, combined with the Grunt and Attack toggle switches give you all the versatility of a rack preamp in the palm of your hand!
“The Darkglass B7K has completely changed what I considered possible from a pedal. The ability dial in extreme amounts of gain without sacrificing clarity provides the aggression and low end I need for my bass tone both live and in the studio.”
-Adam “Nolly” Getgood, Bassist/producer in Periphery.
With the B7K you will easily create your own signature sound in a huge range of shades from classic warm tube tones, even to scooped ultra high gain distortion. Other great spec of the B7K is the built in DI Output which makes it perfect for live and studio applications. It works perfectly either used as a stand-alone preamp going to a power amp and/or PA system, or to spice up the tone of your favorite amplifier. The Microtubes B7K is a dream come true to get your own signature sound.
Original Design featuring our hybrid FET/CMOS gain stages to provide an amazingly natural tube-like dynamic response
Level: Controls the level of the Overdriven Signal
Blend: Allows to mix the exact amount of clean signal with the Overdriven.
Drive: Sets the amount of preamp Gain.
Grunt Switch: Choose between 3 different Bass boost levels before the gain stages, this interacts with the Drive knob, so you can choose how much of bass you want to saturate
Attack Switch: This switch features the same “Ultra Hi” option in most tube bass amps. And it allows you to choose how much treble content you want to saturate. The Boost setting gives you more clarity, presence and definition. The Off option will round your sound, making it a bit warmer and less sharp.
Low: +-12dB @ 100Hz
Mid: +-12dB @ 1kHz
Hi Mid: +-12dB @ 2.8kHz
Treble: +-12dB @ 5kHz
Parallel Output: It allows you to take your clean signal, and re-route to process it in any way you like!
DI Output: Perfect for live aplications for going straight to PA System. And also for studio situations going straight to any interface. The newest version has an always-on, and totally reinforced DI section: Louder, clearer and fatter!
Gnd Lift: Allows you to lift the ground on the DI section for avoiding hums, and any other ground related noise.
Indestructible bypass switch! Featuring the highest quality buffer bypass (mandatory for always-on DI), this system is totally silent, transparent and bulletproof.
For ecological reasons, non of our products will ever again include battery snaps! The B7K can however be powered either using a regulated 9V power supply (center negative). You can also experiment with 12V power supply for extra headroom.