Bartolini NTMB Preamps

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Bartolini NTMB Preamps

Bartolini NTMB preamps are among the best known onboard bass preamps. Many major manufacturers as well as most smaller custom builders have Bartolini preamps as an option for their instruments, and many use Bartolini preamps as their standard stock preamp for their basses.

The NTMB come prewired on a harness with gain control trim potentiometer to control overall output. This means that the preamp module comes wired up to the potentiometers, battery connectors and the output jack. In most cases, the only connections that will need to be made are connecting the pickup wires to the pots and ground. Depending on layout, you may need to extend a couple of the wires to reach to the jack.

Bartolini Preamps come prewired from the factory.

The NTMB are wired for 9 Volt operation, but an extra battery clip is included for 18 Volt operation.

**See the Bartolini FAQ section for information about knobs**

Frequently Asked Questions

Question: Where Can I Buy Bartolini NTMB Preamps?

Answer: You can buy these from Best Bass Gear by Calling 877-839-3531 or Emailing us at sales@bestbassgear.com or chatting with our Bass Techs

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  1. Bartolini HR-4.4/918 Pre-Wired Harness

    $204.00
    Bartolini 4.4 Compact Preamp - 3 Band EQ, 4 Pots: (Neck Volume) (Bridge Volume) (Mid with 250/800Hz push-pull) (Treble/Bass Stack)
    Bartolini HR-4.4/918 Pre-Wired Harness 3 Band EQ, 4 Pots: (Neck Volume) (Bridge Volume) (Mid with 250/800Hz push-pull) (Treble/Bass Stack) Specifications Preamp Module Size: 1.76" [44.7mm] Long, 1.02"...
  2. Bartolini HR-4.7J/918 Pre-Wired Harness

    $232.00
    Bartolini 4.7J Compact Preamp - 3 Band EQ, 4 Pots, 1 toggle Jazz Layout: (Volume) (Blend) (Mid) [250,500,800Hz Mid Toggle] (Treble/Bass Stack)
    Bartolini HR-4.7J/918 Pre-Wired Harness 3 Band EQ, 4 Pots, 1 toggle Jazz Layout: (Volume) (Blend) (Mid) [250,500,800Hz Mid Toggle] (Treble/Bass Stack) Specifications Preamp Module Size: 1.76" [44.7mm]...
  3. Bartolini HR-4.6J/918 Pre-Wired Harness

    $208.00
    Bartolini 4.6J Compact Preamp - 3 Band EQ, 4 Pots Jazz Layout: (Volume) (Blend) (Mid with 250/800Hz push-pull) (Treble/Bass Stack)
    Bartolini HR-4.6J/918 Pre-Wired Harness 3 Band EQ, 4 Pots Jazz Layout: (Volume) (Blend) (Mid with 250/800Hz push-pull) (Treble/Bass Stack) Specifications Preamp Module Size: 1.76" [44.7mm] Long, 1.02"...
  4. Bartolini HR-4.4APJ/918 Pre-Wired Harness

    $216.00
    Bartolini 4.4AP Compact Preamp - 3 Band EQ, 4 Pots Jazz Layout: (Neck Volume with Pull-Bypass Switch) (Bridge Volume) (Mid with 250/800Hz push-pull) (Treble/Bass Stack)
    Bartolini HR-4.4APJ/918 Pre-Wired Harness 3 Band EQ, 4 Pots Jazz Layout: (Neck Volume with Pull-Bypass Switch) (Bridge Volume) (Mid with 250/800Hz push-pull) (Treble/Bass Stack) Specifications Preamp Module Size:...
  5. Bartolini HR-4.4J/918 Pre-Wired Harness
    Out of stock

    Bartolini HR-4.4J/918 Pre-Wired Harness

    Out of stock

    $204.00
    Bartolini 4.4J Compact Preamp - 3 Band EQ, 4 Pots Jazz Layout: (Neck Volume) (Bridge Volume) (Mid with 250/800Hz push-pull) (Treble/Bass Stack)
    Bartolini HR-4.4J/918 Pre-Wired Harness 3 Band EQ, 4 Pots Jazz Layout: (Neck Volume) (Bridge Volume) (Mid with 250/800Hz push-pull) (Treble/Bass Stack) Specifications Preamp Module Size: 1.76" [44.7mm]...
  6. Bartolini HR-5.0AP/918 Pre-Wired Harness
    Out of stock

    Bartolini HR-5.0AP/918 Pre-Wired Harness

    Out of stock

    $208.00
    Bartolini 5.0AP Compact Preamp - 3 Band EQ, 5 Pots: (Volume with Pull-Bypass Switch) (Blend) (Treble) (Mid) (Bass)
    Bartolini HR-5.0AP/918 Pre-Wired Harness 3 Band EQ, 5 Pots: (Volume with Pull-Bypass Switch) (Blend) (Treble) (Mid) (Bass) Specifications Preamp Module Size: 1.76" [44.7mm] Long, 1.02" [25.9mm]...
  7. Bartolini HR-5.0/918 Pre-Wired Harness

    $199.00
    Bartolini 5 Compact Preamp - 3 Band EQ, 5 Pots: (Volume) (Blend) (Treble) (Mid) (Bass)
    Bartolini HR-5.0/918 Pre-Wired Harness 3 Band EQ, 5 Pots: (Volume) (Blend) (Treble) (Mid) (Bass) Specifications Preamp Module Size: 1.76" [44.7mm] Long, 1.02" [25.9mm] Wide, 0.54" [13.7mm]...
  8. Bartolini HR-4.7APJ/918 Pre-Wired Harness

    $239.00
    Bartolini 4.7AP Compact Preamp - 3 Band EQ, 4 Pots, 1 toggle Jazz Layout: (Volume with Pull-Bypass Switch) (Blend) (Mid) [250,500,800Hz Mid Toggle] (Treble/Bass Stack)
    Bartolini HR-4.7APJ/918 Pre-Wired Harness 3 Band EQ, 4 Pots, 1 toggle Jazz Layout: (Volume with Pull-Bypass Switch) (Blend) (Mid) [250,500,800Hz Mid Toggle] (Treble/Bass Stack) Specifications Preamp Module Size: 1.76"...
  9. Bartolini HR-4.6APJ/918 Pre-Wired Harness

    $224.00
    Bartolini 4.6AP Compact Preamp - 3 Band EQ, 4 Pots Jazz Layout: (Volume with Pull-Bypass Switch) (Blend) (Mid with 250/800Hz push-pull) (Treble/Bass Stack)
    Bartolini HR-4.6APJ/918 Pre-Wired Harness 3 Band EQ, 4 Pots Jazz Layout: (Volume with Pull-Bypass Switch) (Blend) (Mid with 250/800Hz push-pull) (Treble/Bass Stack) Specifications Preamp Module Size: 1.76"...
  10. Bartolini HR-4.4/AP918 Pre-Wired Harness

    $216.00
    Bartolini 4.4AP Compact Preamp - 3 Band EQ, 4 Pots: (Neck Volume with Pull-Bypass Switch) (Bridge Volume) (Mid with 250/800Hz push-pull) (Treble/Bass Stack)
    Bartolini HR-4.4/AP918 Pre-Wired Harness 3 Band EQ, 4 Pots: (Neck Volume with Pull-Bypass Switch) (Bridge Volume) (Mid with 250/800Hz push-pull) (Treble/Bass Stack) Specifications Preamp Module Size: 1.76"...
  11. Bartolini HR-5.3/918 Pre-Wired Harness

    $224.00
    Bartolini 5.3 Compact Preamp - 3 Band EQ, 5 Pots, 1 Toggle: (Neck Volume) (Bridge Volume) (Treble) (Mid) [250,500,800Hz Mid Toggle] (Bass)
    Bartolini HR-5.3/918 Pre-Wired Harness 3 Band EQ, 5 Pots, 1 Toggle: (Neck Volume) (Bridge Volume) (Treble) (Mid) [250,500,800Hz Mid Toggle] (Bass) Specifications Preamp Module Size: 1.76" [44.7mm] Long,...
  12. Bartolini HR-4.6AP/918 Pre Wired Harness

    $224.00
    Bartolini 4.6AP Compact Preamp - 3 Band EQ, 4 Pots: (Volume with Pull-Bypass Switch) (Blend) (Mid with 250/800Hz push-pull) (Treble/Bass Stack)
    Bartolini HR-4.6AP/918 Pre-Wired Harness 3 Band EQ, 4 Pots: (Volume with Pull-Bypass Switch) (Blend) (Mid with 250/800Hz push-pull) (Treble/Bass Stack) Specifications Preamp Module Size: 1.76" [44.7mm]...
  13. Bartolini HR-5.4AP/918 Pre Wired Harness

    $232.00
    Bartolini 5.4AP Compact Preamp - 3 Band EQ, 5 Pots, 1 Toggle: (Volume with Pull-Bypass Switch) (Blend) (Treble) (Mid) [250,500,800Hz Mid Toggle] (Bass)
    Bartolini HR-5.4AP/918 Pre-Wired Harness 3 Band EQ, 5 Pots, 1 Toggle: (Volume with Pull-Bypass Switch) (Blend) (Treble) (Mid) [250,500,800Hz Mid Toggle] (Bass) Specifications Preamp Module Size: 1.76"...
  14. Bartolini HR-4.7AP/918 Pre Wired Harness

    $239.00
    Bartolini 4.7AP Compact Preamp - 3 Band EQ, 4 Pots, 1 toggle: (Volume with Pull-Bypass Switch) (Blend) (Mid) [250,500,800Hz Mid Toggle] (Treble/Bass Stack)
    Bartolini HR-4.7AP/918 Pre-Wired Harness 3 Band EQ, 4 Pots, 1 toggle: (Volume with Pull-Bypass Switch) (Blend) (Mid) [250,500,800Hz Mid Toggle] (Treble/Bass Stack) Specifications Preamp Module Size: 1.76"...
  15. Bartolini HR-5.3AP/918 Pre Wired Harness

    $232.00
    Bartolini 5.3AP Compact Preamp - 3 Band EQ, 5 Pots, 1 Toggle: (Neck Volume with Pull-Bypass Switch) (Bridge Volume) (Treble) (Mid) [250,500,800Hz Mid Toggle] (Bass)
    Bartolini HR-5.3AP/918 Pre-Wired Harness 3 Band EQ, 5 Pots, 1 Toggle: (Neck Volume with Pull-Bypass Switch) (Bridge Volume) (Treble) (Mid) [250,500,800Hz Mid Toggle] (Bass) Specifications Preamp Module Size: 1.76"...
  16. Bartolini HR-5.2AP/918 Pre Wired Harness

    $212.00
    Bartolini 5.2AP Compact Preamp - 3 Band EQ, 5 Pots: (Volume with Pull-Bypass Switch) (Blend) (Treble) (Mid with 250/800Hz push-pull) (Bass)
    Bartolini HR-5.2AP/918 Pre-Wired Harness 3 Band EQ, 5 Pots: (Volume with Pull-Bypass Switch) (Blend) (Treble) (Mid with 250/800Hz push-pull) (Bass) Specifications Preamp Module Size: 1.76" [44.7mm] Long,...
  17. Bartolini HR-5.2/918 Pre Wired Harness

    $204.00
    Bartolini 5.2 Compact Preamp - 3 Band EQ, 5 Pots: (Volume) (Blend) (Treble) (Mid with 250/800Hz push-pull) (Bass)
    Bartolini HR-5.2/918 Pre-Wired Harness 3 Band EQ, 5 Pots: (Volume) (Blend) (Treble) (Mid with 250/800Hz push-pull) (Bass) Specifications Preamp Module Size: 1.76" [44.7mm] Long, 1.02" [25.9mm] Wide,...
  18. Bartolini HR-4.6/918 Pre Wired Harness

    $208.00
    Bartolini 4.6/9 Compact Preamp - 3 Band EQ, 4 Pots: (Volume) (Blend) (Mid with 250/800Hz push-pull) (Treble/Bass Stack)
    Bartolini HR-4.6/918 Pre-Wired Harness 3 Band EQ, 4 Pots: (Volume) (Blend) (Mid with 250/800Hz push-pull) (Treble/Bass Stack) Specifications Preamp Module Size: 1.76" [44.7mm] Long, 1.02" [25.9mm]...
  19. Bartolini HR-3.4/918 Pre Wired Harness

    $216.00
    Bartolini 3.4 Compact Preamp -
    Bartolini HR-3.4/918 Pre-Wired Harness Our most popular preamp for decades, the NTMB+F is a 3-band tone control preamp with fully independent Bass, Mid and Treble controls. It is well known to professionals for its very low noise and wide boost...
  20. Bartolini HR-5.4/918 Pre Wired Harness

    $224.00
    Bartolini 5.4 Compact Preamp - 3 Band EQ, 5 Pots, 1 Toggle: (Volume) (Blend) (Treble) (Mid) [250,500,800Hz Mid Toggle] (Bass)
    Bartolini HR-5.4/918 Pre-Wired Harness 3 Band EQ, 5 Pots, 1 Toggle: (Volume) (Blend) (Treble) (Mid) [250,500,800Hz Mid Toggle] (Bass) Specifications Preamp Module Size: 1.76" [44.7mm] Long, 1.02"...
  21. Bartolini HR-4.7/918 Pre Wired Harness

    $232.00
    Bartolini 4.7 Compact Preamp - 3 Band EQ, 4 Pots, 1 toggle: (Volume) (Blend) (Mid) [250,500,800Hz Mid Toggle] (Treble/Bass Stack)
    Bartolini HR-4.7/918 Pre-Wired Harness 3 Band EQ, 4 Pots, 1 toggle: (Volume) (Blend) (Mid) [250,500,800Hz Mid Toggle] (Treble/Bass Stack) Specifications Preamp Module Size: 1.76" [44.7mm] Long, 1.02"...
  22. Bartolini TC3 Harness with Jazz Plate
    Out of stock

    Bartolini TC3 Harness with Jazz Plate

    Out of stock

    $109.00
    This unit is a prewired harness that is a drop in replacement on a Jazz Bass Bass with the traditional control plate.
    TC3 Jazz Bass Specific HarnessThis unit is a prewired harness that is a drop in replacement on a Jazz Bass Bass with the traditional control plate. This harness utilizes Bartolini's TC3 booster preamp to bump up the gain level by 12db. It is useful if...

Frequently Asked Questions

Question: Where Can I Buy Bartolini NTMB Preamps?

Answer: You can buy these from Best Bass Gear by Calling 877-839-3531 or Emailing us at sales@bestbassgear.com or chatting with our Bass Techs

Shop By Filter