Controls
- Balance
- Mixes the clean signal with the filtered signal (?)
- Spectrum
- Selects the filter frequency.
Information
This effect is like a fixed wah, a static filter.
Boss
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. 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.
Video
(2007-02-23) Boss Spectrum SP-1 by psymeg
Specifications
- Spectrum
- 500Hz - 5KHz continuous
- S/N Ratio
- Over 80dB
- Input impedance
- 220K Ohms
- Output load impedance
- Over 600 Ohms
- Dimensions
- 70(W) x 55(H) x 125(D)mm
- Weight
- 400g
- Current draw
- DC9V, 3.5mA
