3B-3

Nordstrand Audio 3 Band Bass Preamps

Original Bullet IconOUR NORDSTRAND 3B PREAMPS NOW UTILIZE SOLDERLESS CONNECTIONS!!!

good bullet iconVERY TRANSPARENT AND MUSICAL

wave form bullet iconNOT OVERLY AGGRESSIVE

configuration bullet iconSEVERAL CONFIGURATIONS TO CHOOSE FROM

wrench bullet iconOUTPUT CAN BE ADJUSTED VIA TRIM POT ON PREAMP MODULE

 

empty box iconFREE SHIPPING IN THE USA
configuration iconEXPERT TECHNICAL SUPPORT
checklist iconIN STOCK MEANS IN STOCK

DESCRIPTION

The Nordstrand 3B Preamp sits firmly in the camp of transparent, high-fidelity onboard bass electronics. This is not a preamp designed to hijack your signal or impose an artificial footprint onto your instrument. Instead, Carey Nordstrand and his team engineered this circuit to respect your bass's natural voice, delivering several highly practical benefits tailored for the working musician.

First and foremost, the 3B acts as an exceptional onboard buffer. It lowers your output impedance, ensuring that you do not lose any crucial high-end clarity or transient attack, even when running through long cables or heavily populated pedalboards. Another highly practical feature is the inclusion of an adjustable internal output trim control. This utility comes in handy if you are matching the preamp with low-output vintage single coils or overwound modern soapbars. It allows you to precisely trim the input stage, letting you push the gain up or pull it back to match the sweet spot of your signal chain.

The 3B features three EQ frequency centers that make it exceptionally flexible on a gig. It will effortlessly help you make the instrument you choose to install it in sound noticeably bigger, thicker, and more mid-forward when you need to cut through a dense rock mix. Conversely, you can use it to bring out airy high-end detail for slap techniques, or pull the treble back to make your tone warmer and smoother for an R&B gig.

No matter where you set the knobs, the Nordstrand 3B inherently sounds natural and well-balanced. It operates with a low noise floor and plenty of headroom, ensuring your tone doesn’t feel compressed.

If you are searching for a flexible, road-ready preamp that will help a bass you already love sound much more like the best version of itself, take a serious look at the Nordstrand 3B. It provides a reliable, transparent foundation that translates perfectly to both live stages and recording environments, giving you the control you need to consistently sound your best.

From Nordstrand Audio

Sonically spotless, original, and easy to use, Nordstrand's 3-Band preamp module provides players with an uninhibited musicality derived from Carey Nordstrand’s own personal design. With an ideal feature set facilitating its great sound, this module has become popular with high end bass builders who love to install them as standard OEM preamps on their top level instruments.

These preamps have become extremely popular upgrades for basses at all levels of quality. Just pick the configuration that matches the control layout on your bass!

Harnesses are professionally wired in the Fat Bass Tone shop.

All of our pre-wired harnesses are now wired using solderless connectors. This means that you should be able to install the harness without any soldering. A mini flathead screwdriver is included to allow you to screw down the terminals on to the necessary wires. Read more here.
(*If you are installing into a bass with a barrel jack, you may need to solder a couple connections) or grab one of our prewired barrel jacks)

Artists: Vivian d'Souza, Fernando Vallin, Paulo Roberto Diniz Jr, Will Birckhead, Travis Carlton, Scott Pazera

FREQUENTLY ASKED QUESTIONS

Is the Nordstrand 3B-4b preamp always active?

Yes. It does not have an Active/Passive switch



 

LAYOUTS

3B-3 (1 Pickup - 3 Band -- 3 Knob, 1 Switch):
Volume w/Active-Passive Push-Pull -- Push-Pull Mid -- Treble/Bass Stack

3B-4a (2 Pickup - 3 Band -- 4 Knob):
Volume/Volume Stack -- Tone w/Active-Passive Push-Pull -- Push-Pull Mid -- Treble/Bass Stack

3B-4b (2 Pickup - 3 Band -- 4 Knob):
Volume/Tone Stack -- Blend -- Push-Pull Mid -- Treble/Bass Stack

3B-4b+APsw (2 Pickup - 3 Band -- 4 Knob, 1 Switch): 
Volume/Tone Stack -- Blend -- Push-Pull Mid -- Treble/Bass Stack -- Active/Passive Switch

3B-5a (2 Pickup - 3 Band -- 5 Knob):
Volume w/Active-Passive Push-Pull -- Blend -- Treble -- Push-Pull Mid -- Bass

3B-5b (2 Pickup - 3 Band -- 5 Knob):
Volume w/Active-Passive Push-Pull -- Blend -- Tone --Push-Pull Mid -- Treble/Bass Stack

3B-5b+Msw (2 Pickup - 3 Band -- 5 Knob, 1 Switch):
Volume w/Active-Passive Push-Pull -- Blend -- Tone -- Mid -- Treble/Bass Stack -- Mid Frequency Switch



TECHNICAL

Overall gain is 0 to 15db by a trim pot on the circuit board.
Bass +/- 12db @ 50Hz
Treble +/- 12db @ 4khz
Midrange +/- 12db @ 1k and 400Hz

3B-3 wiring diagram

3B-4a wiring diagram

3B-4b wiring diagram

3B-4b+APsw wiring diagram

3B-5a wiring diagram

3B-5b wiring diagram

3B-5b+Msw wiring diagram

Customer Reviews

Based on 25 reviews
92%
(23)
8%
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M
Mike M.
The perfect pre-amp!

This preamp gives me the ability to have the most focus tone of any other preamp I have tried. Love it!

B
Bill A.
Just wow!

I was on the fence whether I should get rid of my bass. I recently bought a new one of the same brand (Roscoe) and just really preferred its tone over my older one. Someone recommended I install a Nordstrand preamp because he said they work well with Bartolini Quad Core pickups. Boy was he right! I feel like I got a new bass

B
Billie B.I.
Exceeded my expectations

I’ve always wanted to install Nordstrand preamp in my bass. I kept the stock pickups & added this jawn. I just wanna say the tone is amazing and that’s before you dial in the tone knob & boost the mids. When you add those two, you get that bite with clarity & growl. Best modification choice.

G
Gedeon D.
Nordstrand 3-band pickup (3b-4B)

Wanted a preamp to replace the meh stock Darkglass pre in a Spector EuroNT. Very helpful exchange with FBT rep helped me zero in on the Nordstrand 3b as a suitable replacement. Transaction was easy. Then there was a slight issue in installation (Spector Euro has narrow holes for 2 pots), and another exchange answered my questions about that. These guys know what they're talking about and their prices are competitive, and it was an excellent customer service experience. Most importantly the Euro+Nordy sounds *incredible*, it's really the sound I was looking for -- their advice was spot on. Will definitely look to FBT for future hardware purchases!

G
Gary W.
Nordstrand preamp vol,blend,treb,bass,mid, p tone,toggle

The preamp came with non solder connections not pictured on the site. No soldering needed for most connections (I kept the existing output jack). It is very transparent and the combination of active tone controls plus a passive tone makes this very cool. All very ‘real world’ controls.

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