Aguilar's OBP-1TK on-board preamp is an active 2-band EQ to mount into your bass. It lets you boost bass and treble with up to 18 dB. In addition to the OBP-1 preamp, this set contains two high-quality potentiometers.
Aguilar's OBP-2TK on-board preamp is an excellent 2-band equalizer with boost and cut functions for treble and bass. The OBP-2TK comes with two high-quality potentiometers for treble and bass.
Aguilar's OBP-1SK is a 2-band preamp that can boost both the treble and bass of your bass guitar.
Aguilar's OBP-3TK is an on-board preamp for bass guitars that allows you to filter and boost the bass, mids and trebles. It comes with three potentiometers and a miniswitch for the mid frequencies.
The Aguilar OBP-3SK is an active 3-band EQ for your bass guitar that allows you to boost or filter bass, mids and trebles. It comes with two high-quality potentiometers and a miniswitch for the mid frequencies.
Aguilar's OBP-SK/PP is an on-board preamp set for bass guitars that allows you to boost and filter bass, mids and trebles. It contains two high-quality potentiometers, one of which is a push/pull type.
This Aguilar OBP-3TK/PP on-board preamp for bass guitars allows you to boost and filter bass, mids and trebles. One of the 3 potentiometers has a push/pull function for a selectable mid frequency.
Filters
Filters