Detail 01
Bass: ±18dB at 40Hz
Works at the fundamental, not the punch. You get weight and depth on boost, and you can pull out room boom on cut.
Product detailSKU #1274115053210
AguilarOBP-2SK On Board Bass Preamp
Independent shopping perspective
The Korena take
Two-band onboard bass preamp, $159.99. Same circuit and EQ points as the OBP-2TK in a different control layout. For active conversions where cavity space is tight.
Strong match
Who this is for
- Passive-to-active conversions with limited knob holes
- Studio basses needing a clean, low-impedance output
- Players who shape bass and treble at the instrument
Consider the trade-offs
When to look elsewhere
- Players who need a midrange control
- Anyone wanting an outboard preamp or pedal
- DIY-shy owners of basses with cramped cavities
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: ±16dB at 6.5kHz
High and airy rather than attack. Boost brings out string zing and finger noise; cut warms a bright bass fast.
Detail 03
1 meg ohm input impedance
High enough that passive pickups aren't loaded down, so the bass keeps the top end it had before the install.
Detail 04
100 ohm output, 9V or 18V
Drives long cables and DI inputs cleanly. Running 18V buys 6dB of extra headroom for heavy-handed players.
Detail 05
324 hour battery life
Long, but only when the cable is out. A plugged jack leaves the circuit on and drains a battery in days.
Detail 06
6-1/2 inch wire leads
Short. In a big cavity or a bass with rear-routed controls, plan the layout before soldering or you'll be splicing.
Final check
Know before you order
- 01Battery and any new pots or knobs are extra to the price
- 02Check cavity depth for the circuit plus a battery
- 03Factor in a tech's bench time if you don't solder
Product questions
Before you decide
Straight answers to the questions shoppers most often ask about this product.
01How is this different from the OBP-2TK?
Same circuit and same EQ frequencies. The difference is the control layout, which affects how many holes your bass needs. This one is $10 more at $159.99.
02Can I install it myself?
If you can solder and your cavity has room for the circuit and a battery, yes. Otherwise a tech handles it in an afternoon.
03Does it work with active pickups?
It's designed to take pickup signal and boost it. The 1 meg ohm input suits passive pickups; with already-active pickups you may not need it at all.
04Will it change my pickups' sound?
Only through EQ. It boosts and cuts 40Hz and 6.5kHz with very low noise and distortion, but the core voice stays your pickups.
Reference
Full specifications
The complete catalog record, organized around the decisions musicians make when comparing gear.
2 detailsPickups & controls
- Bass Control
- plus/minus 18dB @ 40Hz
- Treble Control
- plus/minus 16dB @ 6-1/2kHz
3 detailsConnections & power
- Input Impedance
- 1 meg ohm
- Output Impedance
- 100ohm 9V or 18V operation (additional 6dB with 18V)
- Battery Life
- 324 hours
1 detailsSize & weight
- Wire Lead Length
- 6-1/2 inch
2 detailsOther
- Noise
- -95dBm unweighted.
- Distortion
- .019 into 10k ohm load
