Vintage Boss SP-1 Spectrum Pedal- Japan - Aug 1978 - Black Label ( NO BOX) ( Pre Owned)
Sale price
$950.00
Regular price
$1,195.00
CON134
Vintage Boss SP-1 Spectrum Pedal- Japan - Aug 1978 - Black Label ( NO BOX) ( Pre Owned)
Sale price
$950.00
Regular price
$1,195.00
Guaranteed Safe Checkout:
Boss SP-1 Spectrum Pedal- Japan - Aug 1978 - Black Label ( NO BOX) ( Pre Owned)... Very Rare
The BOSS SP-1 Spectrum is a vintage, single-band parametric equalizer pedal, popular for boosting specific frequencies to cut through a mix, with a fixed boost for a selected band of 500Hz to 5kHz controlled by the Spectrum knob and a level control via the Balance knob. Key specifications include a 9V DC power requirement, 3.5mA current draw, 220kΩ input impedance, and over 600kΩ output load impedance. It also features a battery check lamp and an FET switching system for effect changeover.
Controls
- Spectrum: Sweeps the center frequency of the effect from 500 Hz to 5 kHz.
- Balance: Adjusts the mix between the direct and affected sound, controlling the peak of the boost.
- Normal/Effect Switch: Changes between buffered bypass (normal) and the effect.
- Battery Check Lamp: Also confirms the Normal/Effect changeover.
Specifications
- Power: 9V Battery or AC Adaptor (ACA series)
- Current Draw: 3.5mA
- Frequency Range: 500 Hz – 5 kHz
- Input Impedance: 220 kΩ
- Output Load Impedance: Over 600 kΩ
- S/N Ratio: Over 80 dB
- Dimensions: 70(W) x 55(H) x 125(D) mm (2-3/4" x 2-3/16" x 4-15/16")
- Weight: 400g (0.88 lbs)
- Jacks: Input, Output, AC Adaptor
Historical Significance
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Limited Production:The SP-1 was produced in limited numbers and is now a sought-after collector's item.
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Unique Effect:It was one of the first BOSS effects of its kind, a single-band parametric EQ, designed to add character and boost clarity, rather than distortion.
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Usage:While popular with keyboard players for clarity and bassists for cutting through a mix, it can also give guitars a unique, bright, and snappy tone.
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