The Aguilar OBP Series offers outstanding onboard preamps to take your bass sound to new heights. This series caters to diverse player needs, making it suitable for a wide range of musical styles and performance settings. The OBP - 1 models focus on simplicity with a 2 - band EQ, available in stacked or separate controls. The OBP - 2 models add boost and cut functions for more precise tonal tweaks, while the OBP - 3 models provide a full 3 - band EQ for ultimate sound customization.
The Aguilar OBP - 1SK has a stacked Treble/Bass pot, offering a straightforward control experience for players who like things simple. The OBP - 1TK, on the other hand, gives you separate Treble and Bass pots for individual frequency control. In the OBP - 2 series, the OBP - 2SK uses a stacked layout, and the OBP - 2TK provides distinct pots for greater sound adjustment flexibility.
The OBP - 3 models are for those seeking maximum tonal versatility. The OBP - 3SK/PP features a stacked Bass/Treble pot and a push/pull Mid pot for seamless tonal transitions. The OBP - 3SK includes a mini - toggle switch for quick adjustments, and the OBP - 3TK/PP offers separate controls for Treble, Mid, and Bass with a push/pull Mid function. The OBP - 3TK emphasizes simplicity while still providing comprehensive tonal control.
Key features include high - quality construction for reliable performance, user - friendly controls for easy tonal adjustments, a variety of EQ options for different musical genres, and compatibility with most bass guitars for easy installation.
Technical specifications: All models in the series have dimensions of 0.98' W x 0.98' L x 0.59' D and weigh 0.6 lbs. Each model has specific EQ controls, input and output impedance, distortion, noise levels, battery life, and wire lead length details as described in the original content.







Using your Aguilar OBP Series onboard preamp is easy. First, install it on your bass guitar following the included instructions. It's compatible with most bass guitars, so you shouldn't have much trouble.
When you're ready to play, start adjusting the EQ controls to get the sound you want. If you're using an OBP - 1 model, you can simply adjust the Treble and Bass bands. For more precise control, the OBP - 2 and OBP - 3 models offer additional features like boost, cut, and selectable mid - range frequencies.
Here are some things to keep in mind. Make sure the battery is properly installed and has enough power. The battery life is about 324 hours, so you don't have to worry too much about frequent replacements. Also, avoid exposing the preamp to extreme temperatures or moisture, as this can damage the internal components.
For maintenance, keep the preamp clean. You can use a soft, dry cloth to wipe it down. If you notice any issues with the sound or controls, check the connections first. If the problem persists, it might be a good idea to consult a professional technician.