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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**

  1. Bartolini 5.2AP Compact Preamp 2-Pickup 5-Knob 3-Band Vol P/P A/P - Bl - Treb - Mid P/P - Bass

    $182.00
    Bartolini 5.2 A/P Compact Preamp
    New for 2014! The new Bartolini NTMB Systems have eliminated the second module and have only the single 1-3/4" x 1" x 1/2" module. There is also a weight saving on the new systems of 20 grams. Control...
  2. Bartolini 5.3AP Compact Preamp 2-Pickup 5-Knob 1-Switch 3-Band Vol P/P A/P - Vol - Treb - Mid - Bass - Mid Sw

    $182.00
    Bartolini 5.3AP Compact Preamp
    The new Bartolini NTMB Systems have eliminated the second module and have only the single 1-3/4" x 1" x 1/2" module. There is also a weight saving on the new systems of 20 grams. Control...
  3. Bartolini 5.2 Compact Preamp 2-Pickup 5-Knob 3-Band Vol - Bl - Treb - Mid P/P - Bass

    $171.00
    Bartolini 5.2 Compact Preamp
    The new Bartolini NTMB Systems have eliminated the second module and have only the single 1-3/4" x 1" x 1/2" module. There is also a weight saving on the new systems of 20 grams. Control...
  4. Bartolini 4.7 Compact Preamp 2-Pickup 4-Knob 1-Switch 3-Band Vol - Bl - Mid - Treb/Bass Stack - Mid Sw

    $192.00
    Bartolini 4.7 Compact Preamp
    New for 2014! The new Bartolini NTMB Systems have eliminated the second module and have only the single 1-3/4" x 1" x 1/2" module. There is also a weight saving on the new systems of 20 grams. Control...
  5. Bartolini 4.7AP Compact Preamp 2-Pickup 4-Knob 1-Swtich 3-Band Vol P/P A/P - Bl - Mid - Treb/Bass Stack - Mid Sw

    $204.00
    Bartolini 4.7AP Compact Preamp
    The new Bartolini NTMB Systems have eliminated the second module and have only the single 1-3/4" x 1" x 1/2" module. There is also a weight saving on the new systems of 20 grams. Control...
  6. Bartolini 4.6 Compact Preamp 2-Pickup 4-Knob 3-Band Vol - Bl - Mid P/P - Treb/Bass Stack

    $182.00
    Bartolini 4.6 Compact Preamp
    The new Bartolini NTMB Systems have eliminated the second module and have only the single 1-3/4" x 1" x 1/2" module. There is also a weight saving on the new systems of 20 grams. Control Configuration Volume Blend Mid...
  7. Bartolini 4.6AP Compact Preamp 2-Pickup 4-Knob 3-Band Vol P/P A/P - Bl - Mid P/P - Treb/Bass Stack

    $191.00
    Bartolini 4.6AP Compact Preamp
    The new Bartolini NTMB Systems have eliminated the second module and have only the single 1-3/4" x 1" x 1/2" module. There is also a weight saving on the new systems of 20 grams. Control...
  8. Bartolini 3.4 Compact Preamp 2-Pickup 3-Knob 3-Band Vol/Vol Stack - Mid P/P - Treb/Bass Stack

    $186.00
    Bartolini 3.4 Compact Preamp
    The new Bartolini NTMB Systems have eliminated the second module and have only the single 1-3/4" x 1" x 1/2" module. There is also a weight saving on the new systems of 20 grams. Control Configuration Volume/Volume...
  9. Bartolini 5.4 Compact Preamp 2-Pickup 5-Knob 1-Switch 3-Band Vol - Bl - Treb - Bass - Mid - Mid Sw

    Regular Price: $185.00

    Special Price $148.00

    Bartolini 5.4 Compact Preamp
    The new Bartolini NTMB Systems have eliminated the second module and have only the single 1-3/4" x 1" x 1/2" module. There is also a weight saving on the new systems of 20 grams. Control Configuration Volume Blend Treble Mid Bass Mid...
  10. Bartolini 2.4AP Compact Preamp 1-Pickup 3-Knob 3-Band Vol P/P A/P - Mid P/P - Treb/Bass Stack

    $179.00
    Bartolini 2.4 AP
    The new Bartolini NTMB Systems have eliminated the second module and have only the single 1-3/4" x 1" x 1/2" module. There is also a weight saving on the new systems of 20 grams. Control...
  11. Bartolini 5.4AP Compact Preamp 2-Pickup 5-Knob 1-Switch 3-Band Vol P/P A/P - Bl - Treb - Bass - Mid - Mid Sw

    Regular Price: $195.00

    Special Price $169.00

    Bartolini 5.4AP Compact Preamp
    The new Bartolini NTMB Systems have eliminated the second module and have only the single 1-3/4" x 1" x 1/2" module. There is also a weight saving on the new systems of 20 grams. Control...