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Description
bass guitar preamp pedal MXR Thump Bass Preamp Pedal w/3-Band EQMXR Thump Bass Preamp P N: M281 This pedal combines the tone sweetening magic of the Echoplex Preamp with a three band EQ and midrange frequency adjustment so that you can dial in the perfect bass tone to punch up a solo, boost your signal in a live mix, sculpt more edge into the sound of a passive bass, and more. THE LONG STORY The MXR Thump Bass Preamp is a tone sweetening, signal boosting, and altogether groove enhancing machine. This pedal was
MXR Thump Bass Preamp - P/N: M281This pedal combines the tone-sweetening magic of the Echoplex Preamp with a three-band EQ and midrange frequency adjustment so that you can dial in the perfect bass tone to punch up a solo, boost your signal in a live mix, sculpt more edge into the sound of a passive bass, and more.
THE LONG STORY
The MXR Thump Bass Preamp is a tone-sweetening, signal-boosting, and altogether groove-enhancing machine. This pedal was conceived when the MXR design team and their in-house bass players discovered that the Echoplex® Preamp’s sonic secret sauce made for just as delectable a pairing with bass as it does with guitar. Using that circuitry as a foundation, the MXR team added a simple yet potent tone-shaping interface so that you can dial in the perfect bass sound for the stage and the studio.
Crafting the sound you need is easy. The Echoplex Preamp circuit conditions your signal with a carefully balanced EQ profile, and this pedal’s tone controls let you take it from there. The Treble and Bass knobs cut or boost frequencies at 4 kHz and 40 Hz respectively, while the Mid knob cuts or boosts the midrange as set by the Frequency knob, from 250 Hz to 1 kHz. This range of frequencies was selected to give players maximum flexibility and minimal fuss when refining their bass signal.
Whether you need to punch up a solo, boost your signal in a live mix, or sculpt more edge into the sound of a passive bass, the Thump Bass Preamp packs incredible versatility into an MXR mini housing.
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4.3 ★★★★★
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Product Reviews
★★★★★ 5
Engine air filter
Style: CA10165
It works perfectly.
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Reviewed in the United States on May 9, 2026
★★★★★ 5
Good quality
Style: CA10165
Easy to install. Good quality
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Reviewed in the United States on February 24, 2026
★★★★★ 5
Good quality, fits perfect
Style: CA10165
Good quality, fits perfect
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Reviewed in the United States on September 22, 2025
★★★★★ 5
Excelente
Style: CA10165
Excelente
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Reviewed in the United States on September 22, 2025
★★★★★ 5
Fits good
Style: CA10165
we'll see how well it works, but the filter is the right size, seems made fine, and went in with no trouble.
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Reviewed in the United States on March 17, 2025