The darkglass microtubes b7k analogue bass preamp is a powerhouse of tone sculpting offering unparalleled control over your bass sound'. '.strtoupper('w')ith its blend control you can seamlessly mix your clean input signal with the overdriven signal ensuring that your bass retains its natural character while adding just the right amount of grit'. '.strtoupper('t')he attack switch provides further versatility allowing you to boost treble for added clarity and presence or cut high frequencies to tame brightness ensuring your bass cuts through the mix with precision.meanwhile the grunt switch offers three levels of bass saturation enhancing low end dynamics and providing the perfect foundation for your tone'. '.strtoupper('w')hether youre in the studio crafting the perfect bassline or on stage delivering a powerful performance the darkglass microtubes b7k delivers unmatched sonic versatility and clarity'. '.strtoupper('p')lus with features like the parallel output for parallel processing this preamp opens up a world of tonal possibilities making it an essential tool for any bass player seeking to take their sound to the next level.