Aguilar - OBP-1TK On-Board Bass Preamp vs Ampeg Classic Analog Bass Preamp
The Aguilar - OBP-1TK On-Board Bass Preamp and the Ampeg Classic Analog Bass Preamp are both pedals sharing bright, mid-forward, high headroom. The Aguilar - OBP-1TK On-Board Bass Preamp leans transparent. The Ampeg Classic Analog Bass Preamp leans compressed. Current prices: $146.92 vs $120.67.
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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.46% — somewhat different
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Genres both listings are associated with.- Rock
- Funk
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Derived from overlapping tonal signals across both listings.- bright
- mid-forward
- high headroom
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Citation/mention fame — how often this gear is cited across artist rigs and gear discussion.$146.92via Reverb
$120.67via Reverb
The Aguilar OBP-1TK is a 2-band boost-only on-board bass preamp using all-discrete FET circuitry for passive bass guitar installation. It provides up to 18dB of boost at 40Hz for bass frequencies and 4kHz for treble with separate pots in the TK configuration. Compatible with 9V or 18V operation. The circuit has a characteristic inherent mid-scoop that adds a modern scooped character even at unity settings making it well suited to slap bass, funk, and R&B rather than mid-forward blues or rock contexts. Low noise floor and high headroom reproduce full bass dynamics cleanly.
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.
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Genres this gear is documented as being used in.- Blues
- Jazz
- transparent
- compressed
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Occasions this gear suits — judged per model, or derived from its wattage, connectivity and category.- Live
- Silent Recording
- Studio