Detail 01
Bass control at 40 Hz
Cuts or boosts frequencies at 40 Hz.
Product detailSKU #1500000317651
MXRM281 Thump Bass Preamp Pedal Green
1/6
Independent shopping perspective
The Korena take
MXR's green M281 Thump Bass Preamp is a bass-focused preamp pedal built from Echoplex Preamp circuitry. It primes the signal with a balanced EQ profile, then gives you direct control over bass, treble, and selected mid frequencies. Bass and treble work at 40 Hz and 8 kHz, while the Frequency knob sets the midrange point from 250 Hz to 1 kHz. It is made for quickly refining a bass signal for stage or studio use.
Strong match
Who this is for
- Stage bass rigs needing direct bass, treble, and selectable-mid EQ control.
- Studio bass tracking where an Echoplex Preamp-based EQ profile suits the signal.
What matters in use
The specifications, translated
Catalog numbers tell only part of the story. These are the details most likely to change how this product feels, sounds, or fits into a setup.
Detail 02
Treble control at 8 kHz
Cuts or boosts frequencies at 8 kHz.
Detail 03
Mid Frequency range: 250 Hz–1 kHz
Sets the midrange frequency that the Mid control cuts or boosts.
Product questions
Before you decide
Straight answers to the questions shoppers most often ask about this product.
01What does the Frequency knob control?
It selects the midrange frequency for the Mid control, from 250 Hz to 1 kHz.
02What frequencies do the Bass and Treble controls affect?
Bass cuts or boosts at 40 Hz, and Treble cuts or boosts at 8 kHz.
Reference
Full specifications
The complete catalog record, organized around the decisions musicians make when comparing gear.
1 detailsPickups & controls
- Pickup Configuration
- P
1 detailsBody & build
- Color
- Green
