Price Drop: Nordstrand 3B-4a preamp

**Chef** · #1 06-18-2010, 10:15 AM

Nordstrand bass preamp 3b-4a; two pickup 4 knob configuration; pre-wired.
Very natural sounding preamp with treble, midrange and bass boost and cut.
Volume/Volume stack knob, passive tone (pull to bypass preamp), midrange (with pull to shift frequency select, treble/bass stack knob.

This one was installed in one of my basses and developed a scratchy mid potentiometer. Price includes a new midrange potentiometer.

$120 shipped

you can see info and specs here:
http://www.nordstrandpickups.com/preamp/

photo below is a stock photo from nordstrand, and shows a 5 potentiometer unit and is not the actual 4 knob 3b-4a being sold.

joeyl · #2 06-18-2010, 11:55 AM

just checking, how long is the threaded portions of the pots?

thanks

**Chef** · #3 06-18-2010, 12:03 PM

ruler says ~3/8's worth of threads.

**Chef** · #4 06-18-2010, 03:38 PM

yes. pull the passive tone knob up to bypass the preamp.

**Chef** · #5 06-18-2010, 04:04 PM

the box it came in says 3b-4a
i've modified the first post to reflect correct knob layout (been a while since i'd used it, sorry);
i was wrong the first time.

kerrycares · #6 06-19-2010, 03:46 PM

pm sent

**Chef** · #7 06-19-2010, 04:12 PM

replied, thx

Dee-man · #8 06-19-2010, 04:55 PM

Hi Chef. Hope all's well. Perhaps a stupid question, but in passive mode, does the preamp allow for tone adjustment/roll-off? Thx, DM

**Chef** · #9 06-19-2010, 04:58 PM

yessir; that's what the passive tone control does, just like a p-bass or whatev.

however, i believe this is sold...

thx