Ampeg Classic Analog Bass Preamp vs MXR M281 Thump
The Ampeg Classic Analog Bass Preamp and the MXR M281 Thump are both pedals. The Ampeg Classic Analog Bass Preamp leans mid-forward and compressed. Current prices: $120.67 vs $139.99.
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Blended from circuit-archetype lineage, dynamic feel, tone-signal overlap and tone-vector distance — the tone vector itself is derived from editorial description text, not a measured acoustic signal, so this reflects how similarly the catalog copy describes the two, not a lab measurement. Shown only within a gear class, and only where there's enough evidence to be meaningful.43% — somewhat different
MXR M281 Thump
MXR · pedal
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Citation/mention fame — how often this gear is cited across artist rigs and gear discussion.$120.67via Reverb
$139.99via Reverb
The Ampeg Classic Analog Bass Preamp is an all-analog bass effects pedal replicating the preamp circuit of the iconic Ampeg SVT amplifier in compact pedal format. A three-band EQ provides Bass at +7/-20 dB at 40 Hz, Mid at +5/-11 dB at 500 Hz, and Treble at +10/-10 dB at 4 kHz, with a preamp gain stage capable of +18 dB boost. Ultra-Hi and Ultra-Lo passive tone switches shape the frequency response for classic SVT character. True bypass, 9V DC at 20mA, internal -15 dB pad for active basses. Matte black die-cast zinc chassis measuring 2.2 by 2.4 by 4.5 inches, weighing 0.6 lb.
The MXR M281 Thump is a bass preamp pedal offering active tone shaping, boost, and blend controls designed to give bassists precise tonal control and added punch. Built with MXR's rugged construction standards, it targets bassists wanting a dedicated preamp pedal to shape and enhance their tone beyond what their amp's built-in controls provide.
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Genres this gear is documented as being used in.- Rock
- Funk
- mid-forward
- compressed
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Occasions this gear suits — judged per model, or derived from its wattage, connectivity and category.- Live
- Silent Recording
- Studio
- Live
- Silent Recording
- Silent Stage
- Studio