BOSS BP-1W Booster / Preamp Compact Pedal
BOSS BP-1W Booster / Preamp Compact Pedal
BOSS BP-1W Booster / Preamp Compact Pedal
BOSS BP-1W Booster / Preamp Compact Pedal

BOSS BP-1W Booster / Preamp Compact Pedal

Premium multi-mode booster/preamp with authentic all-analog circuit

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  • 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

Sonic Sweetener

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 analogue preamp circuitry, which instantly infuses any guitar tone with character, body, and richness. With the BP-1W, you can now access these two classic preamp tones in a premium Waza Craft pedal, along with a natural, clear voice that functions as a standard clean boost.

Magical Enhancement

For generations, savvy guitarists have relied on key pieces of analogue 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 as much as their famous analogue effect sounds. 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 own rig—without having 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 compact 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

CE—This mode reproduces the CE-1 preamp tone, known for its bright, bell-like character and tight low-end response. 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 analogue compression characteristics, providing foundational vintage colour to feed pedals and amps.
NAT—Produces a punchy, natural voice with minimal coloration. The modern analogue Waza Craft circuitry provides a wide boost range, delivering top performance for any standard clean boost application.

Two Premium Buffers

The 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 analogue circuits to high-tech DSP. This enthusiastic spirit continues with the Waza Craft series, bringing you exceptional tone and touch response through carefully selected analogue components, refined circuitry, and meticulous attention to detail. 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.

Nominal Input Level
-20 dBu

Input Impedance
<Effect OFF>1 M ohms
<Effect ON>1 M ohms
(BUFFER switch: STD) 100 k ohms
(BUFFER switch: VTG)

Nominal Output Level
-20 dBu

Output Impedance
1 kΩ

Recommended Load Impedance
10 kΩ or greater

Bypass
Buffered bypass

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

Indicator
CHECK indicator (Serves also as battery check indicator)

Connectors
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.

Accessories
Leaflet “USING THE UNIT SAFELY”
Dry battery (9 V, 6LR61)

Options (sold separately)
AC adaptor: PSA series

SIZE AND WEIGHT
Width 73 mm2-7/8 inches
Depth 129 mm5-1/8 inches
Height 59 mm2-3/8 inches
Weight (including battery) 430 g1 lb

"I love how this analogue booster/preamp has so many different voicings - you have to check out the warm vintage tone of the RE mode."

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