Boss BP-1W Waza Craft Booster & Preamp Guitar Pedal

With the BP-1W, you can now access two classic preamp tones in a premium Waza Craft pedal, along with a natural, clear voice that functions as a clean boost


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Boss BP-1W Waza Craft Booster & Preamp Guitar Pedal

The vintage BOSS CE-1 Chorus Ensemble and RE-201 Space Echo are legendary for their inspiring and influential effect sounds. But they’re also loved for their variable analog preamp circuitry, which instantly infuses any guitar tone with character, body, and richness. With the Boss BP-1W, you can now access these two classic preamp tones in a premium Waza Craft pedal.

Magical Enhancement

For generations, savvy guitarists have relied on key pieces of analog gear to enhance their core tone. Though discontinued over 30 years ago, the CE-1 and RE-201 remain widely used by many players for their characterful preamps. These “secret weapons” make the sound richer, fuller, and more satisfying to play, even when their effect processing is bypassed.

The BP-1W lets you integrate the magical tone-shaping properties of these legends into your rig. You don’t have to seek out rare and expensive vintage originals.

Versatile Analog Sound Shaping 

The BP-1W is one of the most flexible boost pedals available, offering three unique operation modes in a single stomp. Along with CE and RE vintage modes, a third mode provides a pristine clean boost when you want to pump the volume without added colour.

The Gain knob allows you to dial in a range of saturation and drive tones unique to each mode, while the Level knob lets you balance the effect/bypass sound or push downstream pedal and amp inputs for further tonal enhancement.     

Choose Your Tone Color with BP-1W

CE—This mode reproduces the CE-1 preamp tone, known for its bright, bell-like character and tight low-end response. Furthermore, tweak the Gain knob to conjure an array of pleasing tones, from mild to aggressive.

RE—This mode reproduces the unique colour and response of the RE-201 preamp circuitry. It adds fatness and warmth even at the lowest Gain settings, with increasing saturation as the knob is turned up. You can achieve powerful driven sounds with rich analog compression characteristics, providing foundational vintage color to feed pedals and amps.

NAT—Produces a punchy, natural voice with minimal colouration. The modern analog Waza Craft circuitry provides a wide boost range, delivering top performance for any standard clean boost application. 

Two Premium Buffers

The Boss BP-1W features high-quality buffer circuitry with two selectable types. Slide the rear panel switch to choose between the pure signal of a standard buffer or a vintage buffer with lower input impedance. The vintage type produces a warmer tone and a smooth dynamic response, with maximum benefits achieved by connecting a guitar with passive pickups directly to the BP-1W’s input.

The standard buffer is always engaged for signal conditioning when the pedal is bypassed, regardless of the buffer switch setting.

Waza Craft: 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 analog circuits to high-tech DSP. This enthusiastic spirit continues with the Waza Craft series, bringing you exceptional tone and touch response. They’re made with carefully selected analog components, refined circuitry, and meticulous attention to detail.

In Japan, “Waza” is the term for art and technique. These special edition pedals proudly carry the Waza symbol to represent the pinnacle of BOSS design and craftsmanship.

BP-1W Highlights:

  • Waza Craft innovation for a premium analog tone experience
  • Premium booster and preamp pedal with analog circuitry derived from legendary BOSS and Roland effects
  • Versatile design with three selectable modes
  • Waza Craft innovation for a premium analog tone experience
  • Premium booster and preamp pedal with analog circuitry derived from legendary BOSS and Roland effects
  • Versatile design with three selectable modes
  • CE mode reproduces the bright, bell-like preamp sound of the BOSS CE-1 Chorus Ensemble
  • RE mode reproduces the fat, warm preamp sound of the Roland RE-201 Space Echo
  • NAT mode provides a natural clean boost with minimal sound coloration
  • Gain knob controls the amount of saturation introduced into the signal
  • Level knob for controlling the overall volume and driving the inputs of amps and other pedals
  • Selectable standard or vintage input buffer with different tone and response characteristics
  • Made in Japan
  • BOSS five-year warranty

Nominal Input Level: -20 dBu

Input Impedance:

  • Effect OFF: 1 M ohms
  • Effect ON:
    • BUFFER switch: STD – 1 M ohms
    • BUFFER switch: VTG – 100 k ohms


Nominal Output Level: -20 dBu

Output Impedance: 1 kΩ

Recommended Load Impedance: 10 kΩ or greater

Bypass: Buffered bypass


  • GAIN knob
  • LEVEL knob
  • BUFFER switch (STD/VTG SW)
  • MODE switch
  • Pedal switch


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


  • INPUT jack: 1/4-inch phone type
  • OUTPUT jack: 1/4-inch phone type
  • DC IN jack


Power Supply:

  • Alkaline battery (9 V, 6LR61)
  • AC adaptor (PSA series: sold separately)


Current Draw: 60 mA

Expected Battery Life Under Continuous Use:

  • Alkaline: Approx. 4.5 hours (These figures will vary depending on the actual conditions of use.)


Dimensions: 73 (W) x 129 (D) x 59 (H) mm, 2-7/8 (W) x 5-1/8 (D) x 2-3/8 (H) inches

Weight (including battery): 430 g, 1 lb


  • Dry battery (9 V, 6LR61)


Options (sold separately):

  • AC adaptor: PSA series

(0 dBu = 0.775 Vrms)

For more information, please visit the manufacturer's website.