1977 — SP-1 Spectrum . The BOSS SP-1 Spectrum was an effect that boosted a select band of frequencies, so that instruments with a tendency to be “muddy”—such as electric bass—could be brought out in the mix.

SP-1 Spectrum: The Rarest of All BOSS Pedals. In the long history of BOSS compacts, the SP-1 stands out as one of the most unique pedals. Derived from an effect built into some early Roland guitar and bass amps, the SP-1 is basically a single-band parametric equalizer with a …

Aug 6, 2024 · The BOSS SP-1 Spectrum was an effect that boosted a select band of frequencies, so that instruments with a tendency to be “muddy”—such as electric bass—could be brought out in the mix. But the SP-1 also proved to be very popular among keyboard players, who paired it up with electric pianos such as the Fender Rhodes.

May 21, 2008 · the SP-1 is a parametric equalizer with one frequency band only. The spectrum knob sets the frequency range in the interval 500Hz to 5kHz. The balance knob sets the peak within the range. The SP-1 was more popular with keyboard players than with guitar players.

Source Audio Spectrum Intelligent Filter, BRAND NEW IN BOX W/ WARRANTY! FREE PRIORITY S&H IN U.S.! View similar gear from other sellers on Reverb. Watch this gear and we'll notify you if it becomes available again. Boss Spectrum equalizer effects pedal. Like …

Mar 26, 2004 · The BOSS SP-1 Spectrum was an effect that boosted a select band of frequencies, so that instruments with a tendency to be "muddy"-such as electric bass-could be brought out in the mix. But the SP-1 also proved to be very popular among keyboard players, who paired it up with electric pianos such as the Fender® Rhodes.

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The short-lived Boss SP-1 Spectrum was a single band parametric equalizer pedal. Made in Japan. Years of Production: 1977 -1981