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Bartolini

HR‐3.3AP/918

Bartolini 2 Band Bass Preamps

The NTBT is a 2-band tone control preamp with fully independent Bass and Treble controls.

  • The voice is clear, transparent, and strong with wide boost and cut range for aggressive control. The NTMB features an adjustable gain which allows you to boost the input signal up to 12dB while maintaining flat frequency response.

    A professionally pre-wired and fully pre-tested harness saves the time and aggravation of wiring your preamp and pots into your instrument. Wired with our pro-level preamp and premium audio-quality pots and switches, you’ll have smooth control and be ready for years of rugged use. Bartolini includes battery clips and an output jack for quick installation. All the pots are grounded with a wire that can be connected to the cavity shield or simply cut away if not needed in your installation. Everything is pre-soldered with pro-quality pure copper wire that is double tin plated and protected with semi-rigid insulation so it won’t flop around in the cavity or degrade over time. Bartolini uses only professional lead-free solder with non-corrosive flux.

    A concentric knob set is included with harnesses which have a stacked pot. Bartolini does not include any other knobs with their preamps  

    Artists: David Wilson

  • Configurations Offered:

    HR-3.3AP/918 - 2 Pickup - 3 Knob (Volpp-Bl-T/B)
    Volume w/Active-Passive Push-Pull -- Blend -- Treble/Bass Stack

    HR-4.5AP/918 - 2 Pickup - 4 Knob (Volpp-Bl-T-B)
    Volume w/Active-Passive Push-Pull -- Blend -- Treble -- Bass

  • Preamp Module Size:
    1.76" [44.7mm] Long 
    1.02" [25.9mm] Wide 
    0.54" [13.7mm] Thick

    Operating Voltage:
    9V or 18V - Prewired for 9V. An additional battery clip is included for 18V wiring.

    Gain Control

    • The in-cavity gain trimmer lets you adjust the output level of your instrument. This lets you match output levels from several instruments for consistent response from level-sensitive effects 
    • Gain: 0-12dB

    Bass Control

    • Boost or cut your low frequencies up to 5 times the flat signal. The bass frequency is great for E, B, and low F# strings.
    • Bass: +/-15dB@30Hz

    Treble Control

    • Boost or cut your high frequencies to brighten or darken your tone. The NTBT gives you a constrained control range for precise voice adjustment.
    • Treble: +/-16dB@6KHz
  • Below are impressions and anecdotal thoughts gathered over the years. Some are our own and some are from customers.

    • Capable of producing great fat, thick and round tones
    • Moderately aggressive (not subtle, not overly aggressive)
    • Players commonly site this preamp is being quite musical
    • Ability to adjust the overall output of the active signal

Customer Reviews

Based on 4 reviews
75%
(3)
25%
(1)
0%
(0)
0%
(0)
0%
(0)
j
jacob hebeisen
Greatful they exist

Dealt with Max at BBG for years and now hes here, always a pleasure to deal with, knowledgeable and willing to work with you to make things right if there is an issue.
Hope fat bass tone is around for a long time to come;)

J
Joachim van Zoelen
Lovely experience

The contact I had with the guys at Fat Bass Tone, due to my purchase I made from them was great - really nice guys and an asset to the bass community. It was obvious that they were really committed to me getting what I needed, and that they cared about me being satisfied with the result. Which I was! :-)

K
Kevin Rawlings
Great tone!

Excellent product, did exactly what I needed and sounds fantastic. Would have been better with some longer wires, though, since the ones attaching the pots to the module weren't long enough to reach the battery compartment in my Bacchus. I had to cut them and solder in some extensions. Other than that, no complaints!

Thanks for your comments, Kevin. Glad the preamp sounds good! Bartolini pre-wires these preamps at their factory - We will pass on your thoughts about the wire length.

W
William Reynolds
Excellent Service

People at FBT actually care about their customers and customers projects. Max spent fifteen-twenty minutes on the phone the first time I called helping me decide on a pickup for a custom bass I am building. Then followed up to see how it went. Thanks FBT

Customer Reviews

Based on 4 reviews
75%
(3)
25%
(1)
0%
(0)
0%
(0)
0%
(0)
j
jacob hebeisen
Greatful they exist

Dealt with Max at BBG for years and now hes here, always a pleasure to deal with, knowledgeable and willing to work with you to make things right if there is an issue.
Hope fat bass tone is around for a long time to come;)

J
Joachim van Zoelen
Lovely experience

The contact I had with the guys at Fat Bass Tone, due to my purchase I made from them was great - really nice guys and an asset to the bass community. It was obvious that they were really committed to me getting what I needed, and that they cared about me being satisfied with the result. Which I was! :-)

K
Kevin Rawlings
Great tone!

Excellent product, did exactly what I needed and sounds fantastic. Would have been better with some longer wires, though, since the ones attaching the pots to the module weren't long enough to reach the battery compartment in my Bacchus. I had to cut them and solder in some extensions. Other than that, no complaints!

Thanks for your comments, Kevin. Glad the preamp sounds good! Bartolini pre-wires these preamps at their factory - We will pass on your thoughts about the wire length.

W
William Reynolds
Excellent Service

People at FBT actually care about their customers and customers projects. Max spent fifteen-twenty minutes on the phone the first time I called helping me decide on a pickup for a custom bass I am building. Then followed up to see how it went. Thanks FBT

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