The OBP-2 was designed to give bassists fat tone while being small enough to fit into tight control cavities. 

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• Wire this preamp with one 9 volt battery and it will fit into just about any instrument. With +/-18dB of boost and cut at 40Hz and +/- 16dB of treble boost and cut at 6.5 kHz you have can emphasize just the right frequencies to make your bass sound great in any mix.
  
  The OBP-2 Standard Kits include the preamp module and EQ pots only.  To find a more complete kit, with the option to have it prewired, check out the OBP-2 Custom Kits.
  
  **Sorry international bassists, but US Dealers are not authorized to ship Aguilar Standard OBP Kits outside of the US.  Please contact us if you are having trouble finding Aguilar products in your home country.
• Configurations Offered:
  
  OBP-2TK
  Treble -- Bass
  
  OBP-2SK
  Treble/Bass Stack
  
  

• Bass control: plus/minus 18 dB @ 40 Hz

  Treble control: plus/minus 16 dB @ 6.5 KHz

  Input impedance: 1 meg ohm

  Output impedance: 100 ohm 9 or 18 volts operation

  Distortion: .019 into 10k ohm load

  Noise: -95 dBm unweighted.

  Battery life: 324 hours

  Wire lead length: 6.50 inches

  Low noise discrete FET input stage, center detent 50 K linear pots, with a dual concentric pot available

  Dimensions: 0.98″W x 0.98″L x 0.59″D

  Warranty: Three year limited warranty.

  
  WIRING DIAGRAM:
  
  Aguilar's general OBP-2 wiring diagram
  
  
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• Below are impressions and anecdotal thoughts gathered over the years. Some are our own and some are from customers.

  • "I have the Aguilar OBP3 (and love it) in another bass, and knew this would be a good fit in my bass with less room for a third control"
  • "Boosts the sound without changing the basic tone of my bass."
  • Clear, Clean