Adds versatility and punch to any bass!

The OBP-1 is warm and big sounding, with tons of headroom. The unit provides up to +18dB of boost, occurring at 40Hz (bass) and 4kHz (treble).

Aguilar OBP-1 Onboard Bass Preamp Features:

• Extremely well-buffered design enables you to use long cables without high-end loss
• Works well with active and passive pickups
• Easy to install

Order today and turn your bass into a hot rod.

Onboard boost for big tone and precision control.

The Aguilar OBP-2 was designed to give bassists fat tone while being small enough to fit in tight spaces. Wired up with one 9V battery, it will fit into just about any instrument. With +/-18dB of boost and cut at 40Hz and +/- 16dB of treble boost and cut at 6.5kHz you can emphasize the frequencies you want to make your bass sound great in any mix. Add a second 9V for an extra 6dB boost.

Aguilar OBP-2TK On Board Bass Preamp Specifications:

• Bass control: plus/minus 18dB @ 40Hz
• Treble control: plus/minus 16dB @ 6-1/2kHz
• Input impedance: 1 meg ohm
• Output impedance: 100ohm 9V or 18V operation (additional 6dB with 18V)
• Distortion: .019 into 10k ohm load
• Noise: -95dBm unweighted.
• Battery life: 324 hours
• Wire lead length: 6-1/2"
• 1"W x 1"H x 1/2"D
• 10-year limited warranty

Aguilar OBP-2TK On Board Bass Preamp Features:

• Low-noise, discrete FET input stage
• +/-18dB bass at 40Hz
• +/- 16dB treble at 6.5kHz
• Separate treble and bass knobs
• Center detents

Order your OBP-2SK today to thicken up your bass tone.

3-band EQ with 18dB of boost/cut at 40Hz, 400 or 800Hz (selectable by toggle switch, and 6.5kHz, can be installed as 9 or 18 volt circuit, 1" x 1" x .6", Includes stacked treble/bass pot, midrange pot and toggle switch for midrange frequency selection.

Save BIG when you buy today!

3-band EQ with 18dB of boost/cut at 40Hz, 400 or 800Hz (selectable by push/pull pot), and 6.5kHz, which can be installed as 9- or 18-volt circuit. 1" x 1" x .6". Includes stacked treble/bass pot and push/pull midrange pot.

Save BIG when you buy today!

Tiny and versatile!

In a housing not much bigger than a pick, the OBP-3 offers you tons of headroom and sonic flexibility. With 3 bands of boost or cut plus selectable midrange frequency, you can easily dial in your dream tone. Rolling off the treble produces instant vintage smoothness. Ultra-transparent circuit enhances the sound of your instrument without masking its inherent tone.

Aguilar OBP-3TK On Board Bass Preamp Features:

• Tons of headroom and sonic flexibility
• 3 bands of boost or cut
• Selectable midrange frequency
• Enhances the sound of your instrument without masking its inherent tone

Take active control of your sound. Order it today!

3-band EQ with 18dB of boost/cut at 40Hz, 400 or 800Hz (selectable by push/pull pot), and 6.5kHz can be installed as 9 or 18 volt circuit. 1" x 1" x .6". Includes separate treble, bass, and push/pull midrange pots.

Save BIG when you buy today!

Gives you solid state reliability with great tube emulation.

The BBE BMAX Solid State Bass Guitar Preamplifier is a high-quality bass preamp/processor with advantages in the recording studio and in demanding live applications. It features a class A/B front end that emulates the loading effect of a classic tube preamp. It also has a pure and clean electronically-balanced DI output.

The BBE Process "What it Is"

Loudspeakers have difficulty working with the electronic signals supplied by an amplifier. These difficulties cause such major phase and amplitude distortion that the sound reproduced by the speaker differs significantly from the sound produced by the original source.
In the past, these problems proved unsolvable and were thus relegated to a position of secondary importance in audio system design. However, phase and amplitude integrity is essential to accurate sound reproduction. Research shows that the information which the listener translates into the recognizable characteristics of a live performance are intimately tied into complex time and amplitude relationships between the fundamental and harmonic components of a given musical note or sound. These relationships define a sound's sound".
When these complex relationships pass through a speaker, the proper order is lost. The higher frequencies are delayed. A lower frequency may reach the listener's ear first or perhaps simultaneously with that of a higher frequency. In some cases, the fundamental components may be so time-shifted that they reach the listener's ear ahead of some or all of the harmonic components.
This change in the phase and amplitude relationship on the harmonic and fundamental frequencies is technically called envelope distortion." The listener perceives this loss of sound integrity in the reproduced sound as muddy" and smeared." In the extreme, it can become difficult to tell the difference between musical instruments, for example, an oboe and a clarinet.
BBE Sound, Inc. conducted extensive studies of numerous speaker systems over a ten year period. With this knowledge, it became possible to identify the characteristics of an ideal speaker and to distill the corrections necessary to return the fundamental and harmonic frequency structures to their correct order. While there are differences among various speaker designs in the magnitude of their correction, the overall pattern of correction needed is remarkably consistent.
The BBE Process is so unique that 42 patents have been awarded by the U.S. Patent Office.

BBE BMAX Solid State Bass Guitar Preamplifier Features:

• High-quality bass preamp/processor
• Useful in the studio and in demanding live applications
• Class A/B front end emulates classic tube preamp
• Electronically-balanced DI output
• Quasi-parametric mid-range EQ with 12db of boost or cut between 250 to 1000hz
• Single-knob soft-knee optical compressor
• Inputs for both passive pickup and active pickup instruments
• 1meg ohm input impedance
• Ground lift switch
• Balanced XLR and 1/4" TRS Outputs
• Military-spec circuit boards
• Extra thick, extra wide circuit board traces for unequaled electron flow
• 1% metal film resistors throughout
• Solid 1/4" thick aluminum extrusion front panel for extreme ruggedness
• Made with pride in the USA
• 5-year warranty

BBE BMAX Solid State Bass Guitar Preamplifier Includes:

• 5-year warranty

Makes even budget amps sound like a vintage tuber. Order today and get your sound right.

Milky real tube warmth for the thickest, punchiest bass tones ever.

High-quality tube bass preamp/processor perfect for the pro recording studio and demanding live applications. Features a class A, DC regulated tube preamp section with hand-picked Groove Tubes 12AX7 tube, and Jensen transformer-balanced DI output.

The BBE Process "What it Is"

Loudspeakers have difficulty working with the electronic signals supplied by an amplifier. These difficulties cause such major phase and amplitude distortion that the sound reproduced by the speaker differs significantly from the sound produced by the original source.
In the past, these problems proved unsolvable and were thus relegated to a position of secondary importance in audio system design. However, phase and amplitude integrity is essential to accurate sound reproduction. Research shows that the information which the listener translates into the recognizable characteristics of a live performance are intimately tied into complex time and amplitude relationships between the fundamental and harmonic components of a given musical note or sound. These relationships define a sound's sound".
When these complex relationships pass through a speaker, the proper order is lost. The higher frequencies are delayed. A lower frequency may reach the listener's ear first or perhaps simultaneously with that of a higher frequency. In some cases, the fundamental components may be so time-shifted that they reach the listener's ear ahead of some or all of the harmonic components.
This change in the phase and amplitude relationship on the harmonic and fundamental frequencies is technically called envelope distortion." The listener perceives this loss of sound integrity in the reproduced sound as muddy" and smeared." In the extreme, it can become difficult to tell the difference between musical instruments, for example, an oboe and a clarinet.
BBE Sound, Inc. conducted extensive studies of numerous speaker systems over a ten year period. With this knowledge, it became possible to identify the characteristics of an ideal speaker and to distill the corrections necessary to return the fundamental and harmonic frequency structures to their correct order. While there are differences among various speaker designs in the magnitude of their correction, the overall pattern of correction needed is remarkably consistent.
The BBE Process is so unique that 42 patents have been awarded by the U.S. Patent Office.

BBE BMAX-t Tube Bass Guitar Preamplifier Features:

• High-quality tube bass preamp/processor
• Class A, DC regulated tube preamp section
• Hand-picked Groove Tubes 12AX7 tube
• Jensen transformer-balanced DI output

Make a very wise investment in your tone. Order now.

Use it as a preamp, an active direct box, or an A/B switcher/blender!

The MicroBass II is a powerful, versatile tool for bassists, with functions that include an active direct box, a one- or two-channel preamp, and an A/B switcher/blender. The two channels provide sound shaping from high-end, solid-state types to distorted timbres using the tube-emulation circuitry found in the EBS range of bass amp heads. An incorporated effects loop offers even more flexibility for connecting other effects or for mixing in an external audio source.

Unmatched flexibility
The balanced output with speaker simulator option provides unmatched flexibility in live and studio situations. Footswitches control mute and channel operation/switching.

Other features of the MicroBass II include headphone output; low battery indicator; link and master outputs; bass, sweepable midrange, treble, bright, and edge filters; drive and effects mix controls.

EBS MicroBass II Bass Preamp Pedal Specifications:

• Nominal Input Level: - 8 dBv
• Input Impedance: 10 Mohms (Ch A), 1 Mohms (Ch B)
• Output Impedance: 10 kohms
• Frequency Response (+0 / -3 dB): 20 - 20kHz
  
  Tone Controls:
• Bass: +/- 15 dB @ 100 Hz
• Treble: +/- 15 dB @ 10 kHz shelving
• Bright: + 12 dB @ 10 kHz,15dB gain
• Midrange: +/- 12 dB, 50 2.000 Hz ,Q=0.80
• Edge: +/- 12 dB @ 7 kHz
• Boost Control Gain: 0 30 dB
• Drive Control Gain: 0 35 dB
• Sampling Frequency: 48 kHz
• Dynamic Range: typ 107dB A-weighted
• Dimensions: 6"W x 2-1/3"H x 4-1/3"D
• 2 lbs.
• Power Requirements: 9 V DC Regulated, 10 mA

EBS MicroBass II Bass Preamp Pedal Features:

• Versatile two-channel preamp
• Use one or two basses
• Five different filters
• Tube "Class A" simulator
• Effects loop with mix control
• Flexible drive control
• Balanced output with speaker simulator
• Headphone output
• Battery low indicator
• Four different powering modes

Big, burning EBS sound wherever you go. Order now.

Sing or Scream!

The EBS ValveDrive tube preamp/overdrive pedal can make your bass either glow or growl, when you want your instrument to sing or scream. It delivers everything from classic tube warmth to hard and pure tube distortion. The design in steel, chrome and Bakelite is based on a classic concept with an easy dial-in design.

EBS ValveDrive Pro Dual Mode Tube Overdrive Effects Pedal Specifications:

• True Bypass
• Nominal Input Level: - 8 or - 16 dBv (active/passive)
• Input Impedance: 1 Mohms
• Frequency Response: +0 / -3 dB 35 - 20k Hz
• Gain Range: -oo/+26 dB
• Bass Filter Range: 15 dB < 80 Hz
• Middle Filter Range: 12 dB @ 400 Hz
• Treble Filter Range: 6 dB @ 5 kHz
• Output Impedance: > 500 kohms
• Dimensions: 6.5" x 5.3" x 3.0"
• Weight: 2.2 lbs.
• Power Requirements: 12 V AC, 500 mA*

EBS ValveDrive Pro Dual Mode Tube Overdrive Effects Pedal Features:

• Use as preamp or overdrive pedal
• Vintage or modern tube sound
• All musical high-grade tube design
• Classic style passive filters
• "Class-A" tube overdrive
• Designed exclusively for best bass response
• True bypass
• 12V power supply included

Save BIG when you buy today!

Get that tubalicious sound and everything else your amp lacks.

The exciting Eden WP-100 Navigator Bass Preamp features a tube input stage, compressor with variable threshold and rate controls, tube character control, enhance control, and Eden's famous semi-parametric EQ. The WP-100 Bass Preamp also features D.I. output control on the front of the unit, a mono pre-EQ loop, stereo post-EQ, side-chain loop with front panel blend pot, variable crossover, stereo LED ouptut meters, tuner out, stereo and mono XLR ouptuts, and a defeatable limiter. Eden duplicates front-panel controls for compressor defeat, enhance, mute-to-tune, and turbo boost on a footswitch with lighted indicators that you connect to the WP-100 Navigator Bass Preamp via a standard MIDI cable.

Eden WP-100 Navigator Bass Preamp Features:

• Tube input stage
• Compressor with variable threshold and rate controls
• Tube character control
• Enhance control
• Semi-parametric EQ
• DI output control on the front of the unit
• Mono pre-EQ loop,
• Stereo post-EQ
• Side-chain loop with front panel blend pot
• Variable crossover
• Stereo LED output meters
• Tuner out
• Stereo and mono XLR ouptuts
• Defeatable limiter
• Footswitch control for compressor defeat, enhance, mute-to-tune, and turbo boost
• 17"W x 3.5"H x 12"D

Turn your rig into a high-class, fully loaded unit with one smart move. Order today.

An artist-level unit that's at home on the stage or in the studio.

A truly professional single rack space tube preamp designed for bass! The TBP-1 has an interactive passive circuit delivers creamy tube tone that allows the color of the instrument to shine through. Features a Fender passive tone stack section for vintage tones, a tube overdrive section, Vari-Q EQ section, and an effects loop. Includes a 4-button footswitch for overdrive, effects loop, Vari-Q, and mute. A perfect match for Fender's MB-1200 power amplifier (sold separately).

Fender TBP-1 Tube Bass Preamp Features:

• Fender passive tone stack
• Tube overdrive section
• Vari-Q-EQ section
• Effects loop
• Room balance
• Master volume
• Jensen line out transformer
• Includes four-button footswitch: Overdrive, FX Loop, Vari-Q, and Mute

A great tool for the tone freak bassist. Order yours today!

Hi-fi bass tone control worthy of the studio and ready for the stage!

The Beta Bass Preamplifier offers the professional bassist the highest level of performance ISP Technologies can provide. By incorporating patented Time Vector Processing, the compression circuitry becomes the most adaptive to be used in a bass processor as it allows the Beta preamp to truly track the signal of the notes played. Add in the patented Decimator Noise Reduction Technology, and you have a bass processor with built in noise protection! With 2 parametric bands (a low mid and a high mid), bass, treble, bright and an exciter (for phase manipulation), the Beta lets you shape your sound to your own specifications. For absolutely unsurpassable performance, pair the Beta Bass Preamp with the ISP Technologies Bass Vector or Bass Vector Pro cabinets and get up to 4000 watts of bass depending on your choice of configuration!

ISP Technologies Beta Bass Preamplifier Specifications:

• Input Impedance: 500k Ohms
• Maximum Input Level: +20dbu
• Maximum Output Level: +20dbu
• Bass Treble cut-boost level +/-15db
• Low-Mid parametric frequency range: 60Hz 1kHz cut boost range +/-15db
• High Mid parametric frequency range: 200Hz 6KHz cut boost range +/-15db
• Compression section based on Time Vector Processing adaptive response auto makeup gain
• Decimator Noise Reduction: Greater than 80db

ISP Technologies Beta Bass Preamplifier Features:

• Extreme equalization including Bass, Treble, Bright, Low Mid parametric, High Mid parametric and foot switch controlled ISP Technologies Bass Exciter.
• Signal level indicator with Multi-stage clip detection allows accurate control of the internal gain structure of the preamplifier and processor.
• Decimator noise reduction for absolute silent operation.
• Adaptive Bass Compressor providing smooth volume leveling.
• Balanced XLR and RTS 1/4 inch Main output connections.
• Balanced XLR direct output selectable to provide pre-processed input signal or post-processor direct out with level control and ground lift.
• Foot switch controlled effects loop with rear panel effects mix control.

The Beta is a feature-laden preamp for the discerning professional. Call or click today to order.

Top Italian session bassist Paolo Costa (Alejandro Sanz, Sergio Mendes, Laura Pausini) teamed up with Markbass to design the Studio Pre, a high-quality bass preamp ideal for both studio and live applications. It's an excellent studio tool for recording bassists, combining two channels: CLEAN and AMP. CLEAN is a pristine direct channel which features a pure parametric filter EQ for fine-tuning your sound to perfection. The AMP channel provides three types of distortion (two tube-driven and one solid state) to mix in with the clean channel. To better personalize your sound, there are two more EQ controls, Variable Pre-shape Filter (VPF) and high-pass filter (so you can apply distortion to only the high end), and push-pull knobs give you the ability to store your distortion settings. The professional compressor on the amp channel helps you tame the edges. The preamp's back-end offers three balanced XLR outputs so you can record each channel separately or together. The Studio Pre is an indispensable addition to any recording bassist's gear arsenal.

Markbass Studio Pre Bass Preamp Specifications:

• Power
• Input impedance: 500Kohm, max. voltage: 10 Vpp
• Power consumption: 60W
  
  Other
• Dimensions: 14.5"(W) x 3.39"(W) x 11.9"(D)
• 2U tall
• 19" wide with rack ears
• Weight: 5.9 lbs.
  
  Clean Channel
• GAIN SECTION
• Tube: 1 x ECC83S, gain: 50dB
• SEND/RETURN SECTION
• Return impedance: 50Kohms
• Send output impedance: 1 Kohms
• Effect loop type: parallel
• PURE PARAMETRIC FILTER SECTION
• Frequency range: 60Hz 2kHz
• Level: +/- 16dB
• Q: 0.5 - 8
• EQ SECTION
• Center frequency: 100Hz (low), 800Hz (mid), 4kHz (high), +/- 16dB
  
  Amp Channel
• AMP 1:
• Tube: 2x ECC83S
• AMP 2
• Tube: 1x ECC83S
• AMP 3
• Solid state
• COMPRESSOR
• On/off switch on front panel
• EQ SECTION
• Center frequency: 100Hz(low), 4kHz(high), +/- 16dB
• FILTERS
• VPF (Variable Pre-shape Filter, 380Hz cut); High-pass filter (20Hz 1kHz, -3dB)
  
  Outputs
• AMP LINE OUT
• Balanced XLR, max. voltage 10 Vpp
• CLEAN LINE OUT
• Balanced XLR, max. voltage 10 Vpp
• MIX LINE OUT
• Balanced XLR, max. voltage 10 Vpp
• Unalanced 1/4", max. voltage 2.5 Vpp
• TUNER OUT
• Unalanced 1/4", max. voltage 2.5 Vpp
• FOOTSWITCH
• Amp channel (on/off)/Pure Parametric Filter (on/off)

Markbass Studio Pre Bass Preamp Features:

• Designed by Markbass and top studio session bassist Paolo Costa
• Combines two channels: CLEAN and AMP
• CLEAN is direct channel with parametric filter EQ
• AMP channel has 3 types of distortion (2 tube-driven, 1 solid state)
• Variable Pre-shape Filter
• High-pass filter
• Push-pull knobs for storing distortion settings
• Pro compressor on the amp channel
• 3 balanced XLR outputs for recording channels separately or together
• 1/4" input jack works with both passive and active basses
• Gain knob for input
• Ground lift switches for eliminating hum for both AMP and CLEAN
• channels as well as out for output
• Tuner out sends unbalanced signal sent to a tuner, amp or recording equipment not needing a balanced signal
• Send and Return Effect ensures main signal continues even if something dies in your effects chain
• Dual-sided fiberglass PC boards with lined perforations for high-quality solder connections
• Surface-mount components are silicon-sealed to isolate vibrations
• Computer-grade pre-assembled ribbon connector cable harnesses and ribbons for noise-free operation
• Integrated threaded posts for easy assembly/disassembly and added durability
• Rigid 2mm thick aluminium chassis for a long-lasting finish

Give yourself more EQ control and sound-shaping options with this awesome bass preamp. Order yours today.

A stage and studio staple!

The SansAmp PSA has been used on major releases and worldwide tours for multiple applications and instruments including horns, vocals, and drums. Players, engineers, and producers alike find the SansAmp PSA very simple to operate. To program, you just tweak the knobs and save. Parameters are adjusted in real time with traditional analog potentiometers. The digital memory stores the positions of the pots. With 256 incremental steps, each rotary control increases and decreases in a smooth linear fashion.

The exceptionally versatile SansAmp PSA-1.1 offers 49 factory presets of the most recognized vintage and modern tube amp sounds for guitar and bass, plus 77 user-definable locations. A Universal Output Section enables compatibility with full range systems as well as guitar/bass speaker cabinets. With the SansAmp PSA-1.1, you can record direct to tape, as well as warm up existing tracks in mixdowns. For live applications, it can be used as a pre-amp, "monster direct box" to P.A. system, and as an outboard processor.

Tech 21 Sansamp PSA1.1 Preamp Specifications:

• Input impedance/Input 1: 1 MegOhm
• Input impedance/Input 1: 4.7MegOhm
• Input level/Input 2: -10dB
• Input level/Input 2: Switchable to -10dB or 0dB range
• Output impedance/1/4": 1K Ohm min
• Output impedance/XLRs: 600 Ohm min
• Output impedance/1/4": Switchable to -10dB or 0dB range
• Output impedance XLR: Switchable to -10dB or 0dB range
• Maximum output level: +10dB or better
• XLR Pin Configuration: Pin 1: Ground / Pin 2: In phase / Pin 3: Reverse phase
• Effects send loop: 1K Ohm min, -10dB, Mono
• Effects loop return: 100K Ohm min, -10dB, Stereo/Mono
• Low Frequency Response: 10Hz or better
• High Frequency Response: Harmonic content, 20kHz or better
• Maximum power consumption: 5 Watts
• AC Input Power (factory set): 100V, 117V, 230V, 240V
• Cycles: 50/60 Hz
• Enclosure: Aluminum and steel, fully shielded
• Dimensions: 19"w x 1-3/4"h x 5"d
• Overall depth: 6"
• Weight: 5 lbs.

Tech 21 Sansamp PSA1.1 Preamp Features:

• 49 factory presets with vintage and modern bass and guitar tube amp sounds
• Master volume
• 128 programs
• XLR ground lift switch
• XLR and 1/4" inputs and outputs
• Phantom power MIDI input
• Headphone out

Sansamp's PSA-1.1, the follow-up to their smash PSA-1, adds the features you demanded. Order today!

A truckload of bass rigs in a single rackspace!

The Tech 21 Sansamp RBI Rackmount Bass Tube Amp Emulator puts all of the preamp tone-shaping and fattening control of the popular SansAmp Bass Driver DI in a single rackspace and adds a host of new features: a dedicated mid control; individual level control for the XLR out to optimize your amp's output relative to the PA; effects loop; Mix 50/50 switch; 2 XLR outputs, one with level selection and a buffered unaffected XLR for running a dry signal to another channel. It also has 2 footswitch inputs: on/off and an output for chaining and toggling between 2 SansAmps.

Tech 21 SansAmp RBI Rackmount Bass Tube Amp Emulator Features:

• Puts all of its predecessor's preamp tone-shaping and fattening control in a single rackspace
• Dedicated mid control
• Individual level control for the XLR out to optimize your amp's output relative to the PA
• An effects loop
• Mix 50/50 switch
• 2 XLR outputs, one with level selection and a buffered unaffected XLR for running a dry signal to another channel
• 2 footswitch inputs: on/off and an output for chaining and toggling between 2 SansAmps

One piece of gear that can make your old amp sound like a million bucks. Buy it today.