Aguilar OBP-3

Taps07 · #1 02-09-2011, 09:38 PM

I am trying to install an Aguilar obp-3 pre amp for my bass and I cannot read the schematics can anyone please walk me through this process? If you tb'ers out there need further information, i.e, pics, ect. im more then willing to provide that information.

FunkMetalBass · #2 02-09-2011, 09:51 PM

It's easy - you match the correct wire with the corresponding solder point. Are you soldering it up from scratch? Or are you just trying to install it?

Also, they provide a schematic for 5 or 6 different scenarios (in terms of volume, blend, active/passive switch, etc)...which one are you looking at?

Taps07 · #3 02-09-2011, 10:15 PM

im just trying to install it, im setting it up with a blend, volume, and bypass switch

jpTron · #4 02-10-2011, 12:22 PM

What bass are you wiring it to? Cause if it's a Warwick with their little PCBs attached to the pots then you might be in for a reallllll confusing time.

Taps07 · #5 02-10-2011, 12:42 PM

Its actually a hand made 7 string bass, and the pick ups are some aftermarket pups. I believe theyre passive G & B with a bypass switch, the schematics are fairly easy to navigate, but is it possible to wire a bypass switch incorrectly? I mean I sodered everything according to schematics but does the switch need to be wired a certain way?

FunkMetalBass · #6 02-10-2011, 04:14 PM

Yes, the switch needs to be wired a specific way. Is yours just not working? Maybe you have put a jumper across the wrong terminals and are shorting the signal?

The switch needs to be wired according to the signal and before the preamp. The idea is to re-direct the signal through the preamp when it is flipped in one direction, and pass it straight through to the passive tone control (if available) and output.