AguilarOBP-3SK/PP 3-Band Onboard Bass Preamp

I put it in my Carvin LB 75 and the muddy ness in the low end is gone.It has got tons of lows, just a slight twist and you will hear the change. The mid frequency select switch is an awesome feature with boost and cut at 500hz and 800 hz, its all that you need in the mid department, also the highs are crystal clear but has a lil bit of hiss when boosted fully.

You can't go wrong with the Aguilar pre-amps. Well worth the upgrade. I installed it on a Spector bass and it was a big improvement to the stock unit.

This preamp gave life to a used Kiesel bass that sounded terrible when I got it. Easy to install and gave it a wonderful tone.Would definitely recommend.

I would like to say Amazon you are the best. The order for the Aguilar OBP-3SK/PP was placed on Thursday and it arrived on Saturday. I did not expect to receive the order so soon. I installed it myself, and the sound is truly amazing. Every bassist should have this installed in their bass. You can't go wrong with Aguilar...Thanks again Amazon..bkelley

Installed this in a Schecter Diamond Series Elite-5. It is a nice improvement over the stock pre-amp. It has the unmistakable Aguilar tone. The bass boost is more than I'll ever need. The treble and mid-controls give a lot of range too. This is important to me because sometimes I play with my Hartke LH-1000 & HyDrive 410 and sometimes I play direct to the house in my church. The settings for each is significantly different and the Aguilar pre-amp gives me the range to deal with it.The 3SK/PP kit allowed me to use the existing 4 holes on my bass and not deface it with new ones. I did have to make them 1/16" bigger. Use a brand new high quality bit. Drill from outside-in gently and you won't chip the finish. Worked for me. I like the stacked pot and the switched pot. I did add the "optional" 1M ohm resistors because my mid switch was popping in the house when I used it. It doesn't pop now.I took off a star because two of the wires were solid yellow and one of them was supposed to have white dashes on it. I figured out which was which by looking at wires exiting the OBP-3 in web pics but I shouldn't have to. QA fail.

Nice preamp for this price. Very balanced high frequency and clear low end.

I put this onboard preamp into my Warwick thumb with nordstrand pickups! It is amazing. I can't get a bad tone out of it. It has an in your face growl to it. The preamp came with an awesome diagram and I wired it up myself. I replaced all of the pots in my bass with American made ones and I think that helped out also.

I was hesitant on putting hese in my fender mim deluxe with nordstrand singles pickups installed. Already it still had a nice thrashy low end, punchy tone but still had a nice clean jazz tone. So the push pull option for the mids helped me out alot bringing these two ideal tones more presence. It was either this preamp or a Nordstrand preamp and i dont look back on how hesitant i was to shoot for the Aguilar name. Thanks Amozon for your swift nest day delivery service