Highly recommend these guys

After trying several other preamps, this one stayed. It really brought my bass to life. Other preamps tend to color and truncate your passive tone. This thing lets your highs, mids and lows shine through, making my bass cut through the stage mix. It sounds so incredible. I highly recommend.

I installed this preamp along with the NJ4 pickups into my Lakland USA 44-60 Vintage Jazz bass. I love the sound. I've tried quite a few other preamps and this one stays. I wanted a transparent sound that captures the true essence of the bass and doesn't compress it. This is it! When boosting or cutting, the sound is very pleasing at any combination compared to other preamps. I've never really tweaked much on other preamps, but this one really responds. I wish I've tried this Nordstrand combo sooner. I highly recommend this for higher end basses where you don't want to color a great bass tone.

Put in a Nordstrand 3 band with the passive option, loving it. So many tonal options and best of both worlds. Love how you can set up a great EQ with the active preamp, then blend the passive tone just like you would on a fully passive bass, but with so many more options.
I added pickup splits and now I have no excuses for not having an amazing sound to the desk.

This preamp replaced a well known brand that lacked the adjustable output level to compensate some low volume, but great sounding pickups. Bonus is the modern tones and adjustability to really bring out the natural sound of a phenomenal bass......definately worth the price of admission.