
SP-BP-01 Quad Sound - Bass Pre Amp
Handcrafted in Japan, the Freedom Custom Guitar Research SP-BP-01 Quad Sound Bass Pre Amp is a professional-grade tool that lets bassists sculpt their tone with unparalleled precision. Designed in close collaboration with working musicians, this versatile preamp preserves the natural character of your instrument while giving you expanded tonal options for live and studio use. At the heart of the Quad Sound is a transparent buffer stage that maintains clarity over long cable runs, preventing signal loss. But this is no one-trick pony – the onboard EQ section puts an impressive level of control at your fingertips. Tweak the Bass, Middle, and Treble to dial in your perfect sound, with a sweepable Midrange control that lets you hone in on key frequencies. The Boost/Buffer switch then allows you to crank up the volume without altering your carefully crafted tone. But the real magic lies in the Quad Sound's four distinct tonal modes. Flick through the switches and explore a wide range of voicings – from subtle reinforcement of your instrument's natural character to more aggressive, modern tones. Whether you play passive or active basses, this preamp will help you find your voice and stand out in the mix. Ruggedly built to withstand the rigors of the road, the Quad Sound delivers professional-grade performance in a compact, pedalboard-friendly enclosure. If you're serious about getting the most out of your bass, this Japanese-crafted marvel deserves a spot on your rig.


