Category Archives: Amps

preamps and amplifiers for Double Bass

Audiosprockets Tone Dexter

type: preamp
features: boost switch for solos, bass and treble EQ, sweepable notch filter for feedback suppression, character control, latency less than 1ms, 1/4″ pickup input/high impedance (1MΩ), XLR DI output, XLR mic input with 48V phantom supply (used for training the Tone Dexter)

ToneDexter is a preamp for acoustic guitar, mandolin, violin as well as upright bass. It is designed to “restores the missing body sound to an instrument’s ordinary piezo pickup”. In order to use the Tone Textet, you first play with both a mic and your pickup plugged in while ToneDexter learns the difference between your pickup sound and the mic sound. Then, put the mic away and just use the pickup … but with the sound of the mike, which is digitally rebuilt by the preamp.

www.audiosprockets.com

Eich Amps

Eich B112

Type: combo, single channel
Power Rating: 300W
Drivers: 12″ + 4″ cone
Features: solid state preamp with gain, taste, lo, lo-mid, hi-mid, hi, master volume controls, “mute” switch, DI pre/post, XLR balanced DI out, 1 x effects loop, tuner out, line out, line in
Dimensions: (W x H x D): 44 cm x 45 cm x 35 cm / 17″ x 18″ x 14″
Weight: 14.1 kg / 31.06 lbs
Very lightweight amp. Special version with changed input impedance (piezo-friendly 5 MegOhms) available at www.kontrabass-atelier.de)

T-300, T-500, T-900, T-1000

Type: amp head, single channel
Power Rating: 300W/500W/900W/1000W
Features: solid state preamp with gain, taste, lo, lo-mid, hi-mid, hi, master volume controls, “mute” switch, DI pre/post, XLR balanced DI out, 1 x effects loop, tuner out, line out, line in
Weight: 1,4 kg

Special version with changed input impedance (piezo-friendly 5 MegOhms) available at www.kontrabass-atelier.de)

Radial Engineering

Radial PZ DI

Type: DI box, Buffer
Features: Adjustable load for piezo and magnetic pickups, variable low-cut filter to control bass resonance, 48V phantom powered (does not require batteries),  180° polarity reverse switch, Ground lift

The Radial PZ-DI is a direct box that is specifically designed for acoustic and orchestral instruments. Unlike most direct boxes that are limited to a ‘one size fits all’ design, the PZ-DI lets you properly match the input impedance to the source to optimize the frequency response and dynamics.

www.radialeng.com/r2011/pzdi.php

StageBug™ SB-4 Piezo DI

stagebug-sb4-34Type: DI Box, Buffer
Features: 10 megOhm Impedance input, High Pass filter, Phase reverse, Phantom powered

 

Vintage Revolution

Acoustic Box 1

Type: preamp (blender)
Features: EQ, DI out, line out, mute
Channel 1 (for e.g. piezo): Parametric equalizer, MID level correction;
Channel 2 (for e.g. microphone, +48V Phantom Power, low input impedance), Parametric equalizer, MID level correction, notch filter, Phase reverse, Low pass filter, MIX controls

Acoustic Box 2

Type: preamp (blender)
Features: EQ, DI out, line out, mute
Channel 1 (for e.g. piezo): Parametric equalizer, MID level correction;
Channel 2 (for e.g. microphone, +48V Phantom Power, low input impedance), Parametric EQ, compressor, built-in effects
Aux in (e.g. iPad)

www.vintage-revolution.com

MerkenMerken

Maruszczyk

Barabass Combo 2-channel
Type: combo amp
power rating: 400W RMS/4Ohm
drivers: 1×12″, neodym dynamic tweeter
Features: Channel 1 (electric) Active/Passive Input, Invert Phase, Treble, Lo-Mid, Hi-Mid, Bass, Presence, Contour, Bottom
Channel 2 (acoustic) Mic/Jack Input, Invert Phase, Treble, Lo-Mid, Hi-Mid, Bass; Phantom power for microphone or preamps.
Outputs: Balanced XLR Line Out
www.public-peace.de

Quality Bass Gear

QBG1 Professional Bass Preamp with EQ and DI

Type: preamp
Features: Adjustable input gain (-1 to +20 dB), volume control, with full mute capability
Adjustable high-pass filter to cut unwanted frequencies below those generated by your bottom string, 3-band equalizer optimized for the double bass, Phase reversal switch
Direct Out with 8 dBu of output capability into 600 ohms (1 kHz at 0.5% distortion),
Pre/Post EQ switch for Direct Out, 1 megohm / 10 megohm input impedance switch,
Ground Lift switch

A very lightweight and small preamp, can be mount behind dhe double bass’ tailpiece.

www.qualitybassgear.com