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SD-1W Super Overdrive guitar pedal BOSS

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The SD-1W BOSS pedal takes on the mammoth task of attempting to improve the near-perfect original design. 

✓ Scorching hot, gritty overdrive from this deluxe SD-1 

✓ Asymmetric clipping from all-analogue circuitry gives richer tone 

✓ Switch from Standard to Custom mode for additional fullness and increased sustain 

✓ Robust pedal protection from Boss iconic metal housing 



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Waza Craft Custom Super Overdrive Pedal BOSS SD-1W


Upgrading a classic overdrive guitar effect pedal.

BOSS SD-1W Waza Craft Custom Super Overdrive Pedal guitar effect takes on the mammoth task of attempting to refine and improve the near-perfect original SD-1 design.

The original SD-1 has earned its legendary status based on 40 years of peerless performance thanks to one clever feature-asymmetric clipping.

Most overdrive pedals clip symmetrically giving a slightly thinner sound, that's because asymmetrical clipping creates more harmonic overtones. This gives a richer, thicker sound, overall.

This design feature is patented by Boss (Roland) meaning the SD-1s are the only overdrive pedal that can offer this incredible tonal secret.


SD-1 all grown up

The SD-1W Waza Craft Custom Super Overdrive Boss Pedal, have refined the original design and spared no expense creating the most deluxe overdrive pedal possible.

Firstly, all the internal circuitry has been switched to the most premium component choices available with 100% discrete circuitry preferred to op amps- no shortcuts here. This gives the tone additional purity while also making the sound more full, especially in the treble regions where the response is thicker and more resonant.

The Custom modes makes slight changes but the core tone is similar.

Generally more rounded and slightly beefier, there’s still a midrange bump and a drop in the bottom end, but it’s less pronounced. The higher you crank the gain, the more pronounced these changes become.

Get your hands on the most comprehensive Super Overdrive ever.


WAZA CRAFT is the Art of Superior Tone

Since the beginning, the engineers at BOSS have been committed to achieving the finest guitar tones using any technology necessary, from old-school analogue circuits to high-tech DSP. Continuing this
enthusiastic spirit, we are pleased to introduce the new Waza Craft series. In Japan, “Waza” is the term for art and technique, and these special edition pedals proudly carry the Waza symbol to represent the pinnacle of BOSS design and craftsmanship.

With final sound approval carried out by BOSS in Japan, the Waza Craft series brings you exceptional tone and touch response through carefully-selected analogue components, refined circuitry, and meticulous attention to detail.


SD-1W BOSS pedal Features:

  • Special edition Waza Craft pedal delivers the ultimate BOSS tone experience
  • Premium sound based on the legendary SD-1 Super Overdrive
  • Newly revised, all-analog discrete amplifier circuit
  • Standard and Custom sound modes
  • Highly responsive to picking dynamics and volume changes
  • BOSS five-year warranty


BOSS SD-1W Pedal Specifications:

Nominal Input Level: -20 dBu

Input Impedance: 1 M ohm

Nominal Output Level: -20 dBu

Output Impedance: 1 k ohm

Recommended Load Impedance: 10 k ohms or greater


  • Pedal switch
  • Mode switch
  • LEVEL knob
  • TONE knob
  • DRIVE knob

Indicator: CHECK indicator (Serves also as battery check indicator)


  • INPUT jack
  • OUTPUT jack
  • DC IN jack

Power Supply

  • Alkaline battery (9 V, 6LR61) or Carbon-zinc battery (9 V, 6F22)
  • AC adaptor (sold separately)

Current Draw: 15 mA


  • Owner's Manual
  • Leaflet ("USING THE UNIT SAFELY," "IMPORTANT NOTE," and "Information")
  • Carbon-zinc battery (9 V, 6F22)

Option (sold separately): AC adaptor (PSA series)

Size & Weight

  • Width: 73 mm
  • Depth: 129 mm
  • Height: 59 mm
  • Weight: 430 g
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